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cmd/compile: signal: killed on 1.15.6 #43726

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nigelarmstrong-bc opened this issue Jan 15, 2021 · 9 comments
Closed

cmd/compile: signal: killed on 1.15.6 #43726

nigelarmstrong-bc opened this issue Jan 15, 2021 · 9 comments
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FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

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@nigelarmstrong-bc
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nigelarmstrong-bc commented Jan 15, 2021 •
edited

What version of Go are you using (go version)?

$ go version
go version go1.15.6 linux/amd64

Does this issue reproduce with the latest release?

Reproduced only on latest release 1.15.6. The issue does not exist on 1.15.5 or 1.14.13

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/nigel.armstrong/.cache/go-build"
GOENV="/home/nigel.armstrong/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/nigel.armstrong/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/nigel.armstrong/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build807857339=/tmp/go-build -gno-record-gcc-switches"

What did you do?

$ go get -v github.com/google/go-jsonnet/cmd/jsonnetfmt
go tool compile: signal: killed

or

$ go run -x hello-world.go 
WORK=/tmp/go-build343532254
go tool compile: signal: killed

What did you expect to see?

I expected a build to success.

Here is successful output on 1.15.5

$ go get -v github.com/google/go-jsonnet/cmd/jsonnetfmt
github.com/fatih/color/vendor/golang.org/x/sys/unix
github.com/google/go-jsonnet/ast
github.com/google/go-jsonnet/cmd/internal/cmd
github.com/google/go-jsonnet/internal/pass
github.com/google/go-jsonnet/internal/errors
github.com/google/go-jsonnet/internal/parser
github.com/google/go-jsonnet/astgen
github.com/fatih/color/vendor/github.com/mattn/go-isatty
github.com/fatih/color/vendor/github.com/mattn/go-colorable
github.com/fatih/color
github.com/google/go-jsonnet/internal/program
github.com/google/go-jsonnet/internal/formatter
github.com/google/go-jsonnet
github.com/google/go-jsonnet/cmd/jsonnetfmt
@seankhliao seankhliao changed the title go tool compile: signal: killed on 1.15.6 cmd/compile: signal: killed on 1.15.6 Jan 15, 2021
@seankhliao
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seankhliao commented Jan 15, 2021 •
edited

can you run with -x and does this happen if you build locally?
and what sort of machine is this on?

@seankhliao seankhliao added the WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided. label Jan 15, 2021
@nigelarmstrong-bc
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Running with -x or locally gives the same result:

$ go run -x hello-world.go 
WORK=/tmp/go-build343532254
go tool compile: signal: killed

I am running this on a thinkpad t480s running a brand new install of Ubuntu 20.04.

@nigelarmstrong-bc
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My search suggested others have run into this issue when running out of memory, but I have plenty of memory and have verify this is not a caused by OOM killer in dmesg.

@seankhliao
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can you run it with strace to identify where the signal is coming from?

@nigelarmstrong-bc
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nigelarmstrong-bc commented Jan 15, 2021 •
edited

I can't figure out where the signal is coming from, but here are the strace outputs for the

Main process Full strace output 
brk(NULL)                               = 0x15a6000
arch_prctl(0x3001 /* ARCH_??? */, 0x7ffc1d45c8e0) = -1 EINVAL (Invalid argument)
fstat(3, {st_mode=S_IFREG|0644, st_size=82204, ...}) = 0
mmap(NULL, 82204, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f5d4a0d2000
close(3)                                = 0
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220\201\0\0\0\0\0\0"..., 832) = 832
pread64(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0O\305\3743\364B\2216\244\224\306@\261\23\327o"..., 68, 824) = 68
fstat(3, {st_mode=S_IFREG|0755, st_size=157224, ...}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d4a0d0000
pread64(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0O\305\3743\364B\2216\244\224\306@\261\23\327o"..., 68, 824) = 68
mmap(NULL, 140408, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5d4a0ad000
mmap(0x7f5d4a0b4000, 69632, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7f5d4a0b4000
mmap(0x7f5d4a0c5000, 20480, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x18000) = 0x7f5d4a0c5000
mmap(0x7f5d4a0ca000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1c000) = 0x7f5d4a0ca000
mmap(0x7f5d4a0cc000, 13432, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f5d4a0cc000
close(3)                                = 0
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360q\2\0\0\0\0\0"..., 832) = 832
pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 784, 64) = 784
pread64(3, "\4\0\0\0\20\0\0\0\5\0\0\0GNU\0\2\0\0\300\4\0\0\0\3\0\0\0\0\0\0\0", 32, 848) = 32
pread64(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0\363\377?\332\200\270\27\304d\245n\355Y\377\t\334"..., 68, 880) = 68
fstat(3, {st_mode=S_IFREG|0755, st_size=2029224, ...}) = 0
pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 784, 64) = 784
pread64(3, "\4\0\0\0\20\0\0\0\5\0\0\0GNU\0\2\0\0\300\4\0\0\0\3\0\0\0\0\0\0\0", 32, 848) = 32
pread64(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0\363\377?\332\200\270\27\304d\245n\355Y\377\t\334"..., 68, 880) = 68
mmap(NULL, 2036952, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5d49ebb000
mprotect(0x7f5d49ee0000, 1847296, PROT_NONE) = 0
mmap(0x7f5d49ee0000, 1540096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x25000) = 0x7f5d49ee0000
mmap(0x7f5d4a058000, 303104, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x19d000) = 0x7f5d4a058000
mmap(0x7f5d4a0a3000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1e7000) = 0x7f5d4a0a3000
mmap(0x7f5d4a0a9000, 13528, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f5d4a0a9000
close(3)                                = 0
mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d49eb8000
arch_prctl(ARCH_SET_FS, 0x7f5d49eb8740) = 0
mprotect(0x7f5d4a0a3000, 12288, PROT_READ) = 0
mprotect(0x7f5d4a0ca000, 4096, PROT_READ) = 0
mprotect(0x7f5d4a114000, 4096, PROT_READ) = 0
munmap(0x7f5d4a0d2000, 82204)           = 0
set_tid_address(0x7f5d49eb8a10)         = 204470
set_robust_list(0x7f5d49eb8a20, 24)     = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7f5d4a0b4bf0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f5d4a0b4c90, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
brk(NULL)                               = 0x15a6000
brk(0x15c7000)                          = 0x15c7000
sched_getaffinity(0, 8192, [0, 1, 2, 3, 4, 5, 6, 7]) = 8
read(3, "2097152\n", 20)                = 8
close(3)                                = 0
uname({sysname="Linux", nodename="san-00000491", ...}) = 0
read(3, "Linux version 5.4.0-58-generic ("..., 512) = 150
close(3)                                = 0
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d49e78000
mmap(NULL, 131072, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d49e58000
mmap(NULL, 1048576, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d49d58000
mmap(NULL, 8388608, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d49558000
mmap(NULL, 67108864, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d45558000
mmap(NULL, 536870912, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d25558000
mmap(0xc000000000, 67108864, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xc000000000
mmap(0xc000000000, 67108864, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xc000000000
mmap(NULL, 33554432, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d23558000
mmap(NULL, 2165768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d23347000
mmap(0x7f5d49e58000, 131072, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f5d49e58000
mmap(0x7f5d49dd8000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f5d49dd8000
mmap(0x7f5d4995e000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f5d4995e000
mmap(0x7f5d47588000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f5d47588000
mmap(0x7f5d356d8000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f5d356d8000
mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d23247000
mmap(NULL, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d4a0d7000
mmap(NULL, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d23237000
rt_sigprocmask(SIG_SETMASK, NULL, [], 8) = 0
sigaltstack(NULL, {ss_sp=NULL, ss_flags=SS_DISABLE, ss_size=0}) = 0
sigaltstack({ss_sp=0xc000002000, ss_flags=0, ss_size=32768}, NULL) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
gettid()                                = 204470
rt_sigaction(SIGHUP, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGHUP, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGINT, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGINT, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGQUIT, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGQUIT, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGILL, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGILL, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGTRAP, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGTRAP, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGABRT, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGABRT, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGBUS, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGFPE, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGFPE, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGUSR1, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGUSR1, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGSEGV, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGUSR2, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGUSR2, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGPIPE, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGPIPE, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGALRM, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGALRM, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGTERM, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGTERM, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGSTKFLT, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGSTKFLT, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGCHLD, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGCHLD, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGURG, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGURG, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGXCPU, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGXCPU, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGXFSZ, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGXFSZ, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGVTALRM, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGVTALRM, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGPROF, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGPROF, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGWINCH, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGWINCH, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGIO, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGIO, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGPWR, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGPWR, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGSYS, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGSYS, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRTMIN, NULL, {sa_handler=0x7f5d4a0b4bf0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, 8) = 0
rt_sigaction(SIGRTMIN, NULL, {sa_handler=0x7f5d4a0b4bf0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, 8) = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7f5d4a0b4bf0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, NULL, {sa_handler=0x7f5d4a0b4c90, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, 8) = 0
rt_sigaction(SIGRT_1, NULL, {sa_handler=0x7f5d4a0b4c90, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f5d4a0b4c90, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_2, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_2, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_3, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_3, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_4, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_4, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_5, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_5, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_6, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_6, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_7, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_7, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_8, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_8, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_9, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_9, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_10, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_10, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_11, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_11, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_12, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_12, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_13, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_13, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_14, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_14, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_15, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_15, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_16, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_16, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_17, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_17, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_18, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_18, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_19, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_19, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_20, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_20, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_21, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_21, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_22, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_22, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_23, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_23, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_24, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_24, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_25, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_25, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_26, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_26, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_27, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_27, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_28, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_28, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_29, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_29, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_30, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_30, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_31, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_31, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigaction(SIGRT_32, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_32, {sa_handler=0x46e6c0, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5d4a0c23c0}, NULL, 8) = 0
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5d22a36000
mprotect(0x7f5d22a37000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7f5d23235fb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[204475], tls=0x7f5d23236700, child_tidptr=0x7f5d232369d0) = 204475
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5d1b7ff000
mprotect(0x7f5d1b800000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7f5d1bffefb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[204477], tls=0x7f5d1bfff700, child_tidptr=0x7f5d1bfff9d0) = 204477
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5d22235000
mprotect(0x7f5d22236000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7f5d22a34fb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[204480], tls=0x7f5d22a35700, child_tidptr=0x7f5d22a359d0) = 204480
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
futex(0xdd4188, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5d211f3000
mprotect(0x7f5d211f4000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7f5d219f2fb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[204482], tls=0x7f5d219f3700, child_tidptr=0x7f5d219f39d0) = 204482
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
fcntl(0, F_GETFL)                       = 0x2 (flags O_RDWR)
futex(0xc000080148, FUTEX_WAKE_PRIVATE, 1) = 1
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d211b3000
fcntl(1, F_GETFL)                       = 0x2 (flags O_RDWR)
fcntl(2, F_GETFL)                       = 0x2 (flags O_RDWR)
getpid()                                = 204470
write(2, "WORK=/tmp/go-build966818795\n", 28) = 28
epoll_create1(EPOLL_CLOEXEC)            = 4
pipe2([5, 6], O_NONBLOCK|O_CLOEXEC)     = 0
epoll_ctl(4, EPOLL_CTL_ADD, 5, {EPOLLIN, {u32=14697512, u64=14697512}}) = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001330a4) = -1 EPERM (Operation not permitted)
read(3, "package main\n\nimport \"fmt\"\n\nfunc"..., 4096) = 75
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000132924) = -1 EPERM (Operation not permitted)
getdents64(3, /* 15 entries */, 8192)   = 528
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001328cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
read(3, "if appropriate,\n\texcept that for"..., 4096) = 4096
read(3, "ccessive arguments passed in the"..., 4096) = 4096
read(3, "\n\tThe Printf verbs %p and %T and"..., 4096) = 2531
read(3, "", 4096)                       = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001328cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 1052
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001328cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 2407
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001328cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001328cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 219
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001328cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001328cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001328cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 1584
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001328cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001328cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001328cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
--- SIGURG {si_signo=SIGURG, si_code=SI_TKILL, si_pid=204470, si_uid=0} ---
rt_sigreturn({mask=[]})                 = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001328cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 551
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001328cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 2156
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001324a4) = -1 EPERM (Operation not permitted)
getdents64(3, /* 7 entries */, 8192)    = 224
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013244c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 2080
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013244c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 1270
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013244c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 691
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013244c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 3271
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013244c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000132024) = -1 EPERM (Operation not permitted)
getdents64(3, /* 11 entries */, 8192)   = 368
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 199
read(3, "", 4096)                       = 0
read(3, "", 4096)                       = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 3029
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 2681
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 2459
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 2010
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 2479
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131ba4) = -1 EPERM (Operation not permitted)
getdents64(3, /* 4 entries */, 8192)    = 128
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2020 The Go Authors"..., 4096) = 1160
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2020 The Go Authors"..., 4096) = 2969
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131724) = -1 EPERM (Operation not permitted)
getdents64(3, /* 3 entries */, 8192)    = 80
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131ba4) = -1 EPERM (Operation not permitted)
getdents64(3, /* 214 entries */, 8192)  = 8176
getdents64(3, /* 213 entries */, 8192)  = 8184
getdents64(3, /* 146 entries */, 8192)  = 5584
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 1184
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 1023
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 296
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 258
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 2683
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 433
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 358
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 2055
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 2434
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 411
read(3, "", 4096)                       = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 3141
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
read(3, "e runtime\n\nimport (\n\t\"runtime/in"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 317
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 1434
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 2633
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2020 The Go Authors"..., 4096) = 1491
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 936
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 413
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 1629
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 1077
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 800
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 533
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 478
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 385
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 1673
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 356
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 1119
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 844
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 3590
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 1117
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 2733
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 3109
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
mmap(NULL, 1439992, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d21053000
read(3, "// created by cgo -cdefs and the"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// +build mips64 mips64le\n// +bu"..., 4096) = 3114
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 3253
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Code generated by mkduff.go; "..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Code generated by mkduff.go; "..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Code generated by mkduff.go; "..., 4096) = 2461
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 1870
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 1183
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 1374
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 1301
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 529
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 429
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 481
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 2334
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
read(3, " numbers to drop\n\tmore quickly.\n"..., 4096) = 4096
read(3, "s for run-time functions\nand sho"..., 4096) = 3695
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 1249
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 784
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Code generated by mkfastlog2t"..., 4096) = 904
--- SIGURG {si_signo=SIGURG, si_code=SI_TKILL, si_pid=204470, si_uid=0} ---
rt_sigreturn({mask=[]})                 = 904
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 1382
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 2499
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 2150
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 366
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 2566
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 2660
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 1809
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 522
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 2198
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 2844
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 2639
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 940
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2020 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2020 The Go Authors"..., 4096) = 1033
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2020 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
read(3, "ess space. The allocator\n// atte"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 4096
read(3, "ject,\n// but for tracing running"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 2095
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 3736
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 1681
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 1274
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Derived from Inferno's libker"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 1649
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 1866
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 2787
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
read(3, "l spans are marked as \"needs swe"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 1349
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 847
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 3838
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 1424
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 647
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 2075
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 777
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2020 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 463
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 445
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 411
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 509
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 2224
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 648
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "package runtime_test\n\nimport (\n\t"..., 4096) = 360
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 1440
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 888
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 979
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 478
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 254
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 816
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 916
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 1080
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 1071
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 307
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 298
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 527
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 3395
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 436
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2020 The Go Authors"..., 4096) = 1746
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Code generated by mkpreempt.g"..., 4096) = 1661
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Code generated by mkpreempt.g"..., 4096) = 2777
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Code generated by mkpreempt.g"..., 4096) = 2741
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2020 The Go Authors"..., 4096) = 289
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Code generated by mkpreempt.g"..., 4096) = 2777
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 820
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
--- SIGURG {si_signo=SIGURG, si_code=SI_TKILL, si_pid=204470, si_uid=0} ---
rt_sigreturn({mask=[]})                 = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 4096
read(3, "eak\n//\t\t}\n//\t}\n//\tif uint32(over"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 1552
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 2670
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 783
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 553
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 597
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 307
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 1015
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 798
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 1459
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 1491
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 1863
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 1229
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 3615
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 2560
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 1655
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 460
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 2512
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 2102
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 3433
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 3756
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 3501
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 3216
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 3103
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 3680
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
futex(0xc00004ed48, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000080148, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xe05458, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d21013000
futex(0xc00004ed48, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc00004e948, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xe05458, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0xc000080148, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc00004e948, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000080148, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0xe05458, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0xc00004e948, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000080148, FUTEX_WAKE_PRIVATE, 1) = 1
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5d20812000
mprotect(0x7f5d20813000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7f5d21011fb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[204500], tls=0x7f5d21012700, child_tidptr=0x7f5d210129d0) = 204500
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
futex(0xc000080148, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc00004ed48, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xe05458, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0xc00004e948, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0xc00004ed48, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xe05458, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
getpid()                                = 204470
tgkill(204470, 204480, SIGURG)          = 0
futex(0xdd3518, FUTEX_WAKE_PRIVATE, 1)  = 1
futex(0xdd3608, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000}) = 0
futex(0xdd3518, FUTEX_WAKE_PRIVATE, 1)  = 0
epoll_pwait(4, [], 128, 0, NULL, 32)    = 0
futex(0xdd3618, FUTEX_WAKE_PRIVATE, 1)  = 1
futex(0xc00004ed48, FUTEX_WAKE_PRIVATE, 1) = 1
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 4096
close(3)                                = 0
--- SIGURG {si_signo=SIGURG, si_code=SI_TKILL, si_pid=204470, si_uid=0} ---
rt_sigreturn({mask=[]})                 = 0
--- SIGURG {si_signo=SIGURG, si_code=SI_TKILL, si_pid=204470, si_uid=0} ---
rt_sigreturn({mask=[]})                 = 3
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 654
sched_yield()                           = 0
futex(0xdd3518, FUTEX_WAKE_PRIVATE, 1)  = 0
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d20782000
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 3573
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Code generated by mksizeclass"..., 4096) = 4096
read(3, "      65536        3         256"..., 4096) = 3997
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 905
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 1069
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 289
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 398
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 944
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 646
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 283
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 279
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 297
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 296
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 496
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 492
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 241
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 528
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 624
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 1493
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 2738
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 631
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 1944
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 382
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 497
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 309
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 729
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 705
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 1542
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 742
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 3467
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 2828
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 2862
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 1896
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 379
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 748
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 851
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 673
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Inferno's libkern/vlrt-arm.c\n"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 2589
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 290
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131724) = -1 EPERM (Operation not permitted)
getdents64(3, /* 53 entries */, 8192)   = 2048
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 3769
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 994
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 1698
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 1422
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 590
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 4050
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 460
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 616
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 2772
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 2581
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 628
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 1048
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 1091
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 789
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 2388
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 617
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 872
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 559
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 3144
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 516
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 981
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 1008
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 378
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001312a4) = -1 EPERM (Operation not permitted)
getdents64(3, /* 22 entries */, 8192)   = 752
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 196
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 667
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 347
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 1359
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 1726
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 2751
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 576
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 1278
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 200
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131724) = -1 EPERM (Operation not permitted)
getdents64(3, /* 31 entries */, 8192)   = 1136
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
--- SIGURG {si_signo=SIGURG, si_code=SI_TKILL, si_pid=204470, si_uid=0} ---
rt_sigreturn({mask=[]})                 = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 3979
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 4051
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 2950
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 1776
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 1483
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 1083
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 2554
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 482
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 1481
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 1370
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 1818
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 795
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131724) = -1 EPERM (Operation not permitted)
getdents64(3, /* 4 entries */, 8192)    = 112
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 550
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 1721
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001312a4) = -1 EPERM (Operation not permitted)
getdents64(3, /* 62 entries */, 8192)   = 2360
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 298
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 365
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 2511
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 2489
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 321
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "package sys_test\n\nimport (\n\t\"run"..., 4096) = 764
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 705
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 650
read(3, "", 4096)                       = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Code generated by gengoos.go "..., 4096) = 644
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Code generated by gengoos.go "..., 4096) = 467
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013124c) = -1 EPERM (Operation not permitted)
read(3, "// Code generated by go tool dis"..., 4096) = 154
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001324a4) = -1 EPERM (Operation not permitted)
getdents64(3, /* 5 entries */, 8192)    = 152
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013244c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 258
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013244c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc00013244c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000132024) = -1 EPERM (Operation not permitted)
getdents64(3, /* 22 entries */, 8192)   = 728
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 1079
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 1151
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 1143
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 1248
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 3821
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 2603
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 2006
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 2191
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131ba4) = -1 EPERM (Operation not permitted)
getdents64(3, /* 129 entries */, 8192)  = 4328
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 363
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 1765
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 983
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 1899
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 3043
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 1485
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 1973
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 1911
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 2300
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 2228
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 378
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 1584
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 1947
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
read(3, "ximate\n//              g(s)=f(1/"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 3442
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 3747
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 260
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
read(3, "+2.0*(r-E);\n//        (v)   if ("..., 4096) = 3929
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 357
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 3160
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 2023
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 483
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 860
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 2601
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 773
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 1072
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 990
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 3890
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 740
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 3749
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 1014
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009-2010 The Go Au"..., 4096) = 834
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 847
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 404
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 1233
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 3231
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 1266
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 2005
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 302
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 1797
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 1601
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 326
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 375
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 326
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 1440
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 1879
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 1830
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 1613
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 3701
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 2655
--- SIGURG {si_signo=SIGURG, si_code=SI_TKILL, si_pid=204470, si_uid=0} ---
rt_sigreturn({mask=[]})                 = 824634973280
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 3413
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 1298
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131724) = -1 EPERM (Operation not permitted)
getdents64(3, /* 11 entries */, 8192)   = 400
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 367
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 591
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 204
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 3210
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 1505
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131ba4) = -1 EPERM (Operation not permitted)
getdents64(3, /* 29 entries */, 8192)   = 968
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 974
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 1931
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2020 The Go Authors"..., 4096) = 3096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2020 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2020 The Go Authors"..., 4096) = 1029
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 3087
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 1916
read(3, "", 4096)                       = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2017 The Go Authors"..., 4096) = 240
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 2983
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 494
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 2927
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131724) = -1 EPERM (Operation not permitted)
getdents64(3, /* 5 entries */, 8192)    = 152
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 3060
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131ba4) = -1 EPERM (Operation not permitted)
getdents64(3, /* 27 entries */, 8192)   = 936
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 2604
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 1025
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 1165
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 1297
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 3995
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 2301
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 1125
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2019 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2012 The Go Authors"..., 4096) = 2018
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2020 The Go Authors"..., 4096) = 464
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2020 The Go Authors"..., 4096) = 545
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 1375
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131724) = -1 EPERM (Operation not permitted)
getdents64(3, /* 5 entries */, 8192)    = 144
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 448
read(3, "", 4096)                       = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 602
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 880
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131724) = -1 EPERM (Operation not permitted)
getdents64(3, /* 9 entries */, 8192)    = 296
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 2303
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2018 The Go Authors"..., 4096) = 2284
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 293
read(3, "", 4096)                       = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 2446
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0001316cc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2014 The Go Authors"..., 4096) = 2874
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131ba4) = -1 EPERM (Operation not permitted)
getdents64(3, /* 14 entries */, 8192)   = 472
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 755
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 352
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 1576
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2015 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 2616
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2009 The Go Authors"..., 4096) = 3016
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131b4c) = -1 EPERM (Operation not permitted)
read(3, "// Code generated by running \"go"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000132024) = -1 EPERM (Operation not permitted)
getdents64(3, /* 19 entries */, 8192)   = 720
getdents64(3, /* 0 entries */, 8192)    = 0
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 1501
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 2744
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2013 The Go Authors"..., 4096) = 4096
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 1184
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 2914
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 1672
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2011 The Go Authors"..., 4096) = 239
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2016 The Go Authors"..., 4096) = 2976
close(3)                                = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555493640, u64=140037964179720}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000131fcc) = -1 EPERM (Operation not permitted)
read(3, "// Copyright 2010 The Go Authors"..., 4096) = 4096
epoll_pwait(4, [], 128, 0, NULL, 16)    = 0
futex(0xc00004fd48, FUTEX_WAKE_PRIVATE, 1) = 1
close(3)                                = 0
mmap(NULL, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d20732000
--- SIGURG {si_signo=SIGURG, si_code=SI_TKILL, si_pid=204470, si_uid=0} ---
rt_sigreturn({mask=[]})                 = 2109440
getpid()                                = 204470
tgkill(204470, 204500, SIGURG)          = 0
getpid()                                = 204470
tgkill(204470, 204500, SIGURG)          = 0
futex(0xdd3630, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000}) = -1 ETIMEDOUT (Connection timed out)
sched_yield()                           = 0
futex(0xdd3518, FUTEX_WAKE_PRIVATE, 1)  = 0
futex(0xdd3630, FUTEX_WAKE_PRIVATE, 1)  = 0
epoll_pwait(4, [], 128, 0, NULL, 140720799598920) = 0
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d206f2000
futex(0xdd3518, FUTEX_WAKE_PRIVATE, 1)  = 1
futex(0xc00004f948, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xdd3630, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000}) = 0
sched_yield()                           = 0
futex(0xdd3518, FUTEX_WAKE_PRIVATE, 1)  = 0
futex(0xdd4188, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
madvise(0xc000400000, 2097152, MADV_NOHUGEPAGE) = 0
madvise(0xc0004fc000, 8192, MADV_FREE)  = 0
epoll_pwait(4, [], 128, 5, NULL, 0)     = 0
epoll_pwait(4, [], 128, 1, NULL, 0)     = 0
futex(0xc000600148, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc00004e948, FUTEX_WAKE_PRIVATE, 1) = 1
madvise(0xc000400000, 2097152, MADV_NOHUGEPAGE) = 0
madvise(0xc0004fa000, 8192, MADV_FREE)  = 0
epoll_pwait(4, [{EPOLLOUT, {u32=555493176, u64=140037964179256}}], 128, 6, NULL, 0) = 1
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5d206b2000
epoll_ctl(4, EPOLL_CTL_ADD, 22, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555491552, u64=140037964177632}}) = -1 EPERM (Operation not permitted)
epoll_ctl(4, EPOLL_CTL_DEL, 22, 0xc00061ecc4) = -1 EPERM (Operation not permitted)
pipe2([29, 30], O_CLOEXEC)              = 0
epoll_ctl(4, EPOLL_CTL_ADD, 29, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555490392, u64=140037964176472}}) = 0
fcntl(29, F_GETFL)                      = 0 (flags O_RDONLY)
fcntl(29, F_SETFL, O_RDONLY|O_NONBLOCK) = 0
epoll_ctl(4, EPOLL_CTL_ADD, 30, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=543632336, u64=140037952318416}}) = 0
fcntl(30, F_GETFL)                      = 0x1 (flags O_WRONLY)
sched_yield()                           = 0
futex(0xdd3518, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xdd3518, FUTEX_WAKE_PRIVATE, 1)  = 0
fcntl(30, F_SETFL, O_WRONLY|O_NONBLOCK) = 0
futex(0xdd4188, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0xc00004f948, FUTEX_WAKE_PRIVATE, 1) = 1
fcntl(24, F_SETFL, O_WRONLY)            = 0
pipe2([40, 41], O_CLOEXEC)              = 0
getpid()                                = 204470
rt_sigprocmask(SIG_SETMASK, NULL, [], 8) = 0
rt_sigprocmask(SIG_SETMASK, ~[], NULL, 8) = 0
clone(child_stack=NULL, flags=CLONE_VM|CLONE_VFORK|SIGCHLD) = 204504
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGURG {si_signo=SIGURG, si_code=SI_TKILL, si_pid=204470, si_uid=0} ---
rt_sigreturn({mask=[]})                 = 0
futex(0xdd3630, FUTEX_WAKE_PRIVATE, 1)  = 0
futex(0xc00004ed48, FUTEX_WAKE_PRIVATE, 1) = 1
--- SIGURG {si_signo=SIGURG, si_code=SI_TKILL, si_pid=204470, si_uid=0} ---
rt_sigreturn({mask=[]})                 = 1
futex(0xdd3630, FUTEX_WAKE_PRIVATE, 1)  = 1
pipe2([48, 49], O_CLOEXEC)              = 0
sched_yield()                           = 0
--- SIGURG {si_signo=SIGURG, si_code=SI_TKILL, si_pid=204470, si_uid=0} ---
rt_sigreturn({mask=[]})                 = 0
futex(0xdd3518, FUTEX_WAKE_PRIVATE, 1)  = 0
close(41)                               = 0
read(40, "", 8)                         = 0
close(40)                               = 0
futex(0xdd4188, FUTEX_WAIT_PRIVATE, 0, NULL) = ? ERESTARTSYS (To be restarted if SA_RESTART is set)
futex(0xdd4188, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0xdd4188, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
nanosleep({tv_sec=0, tv_nsec=3000}, NULL) = 0
futex(0xc00004fd48, FUTEX_WAKE_PRIVATE, 1) = 1
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=204505, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
rt_sigreturn({mask=[]})                 = 1
pipe2([3, 7], O_CLOEXEC)                = 0
getpid()                                = 204470
rt_sigprocmask(SIG_SETMASK, NULL, [], 8) = 0
rt_sigprocmask(SIG_SETMASK, ~[], NULL, 8) = 0
clone(child_stack=NULL, flags=CLONE_VM|CLONE_VFORK|SIGCHLD) = -1 (errno 18446744073709551603)
+++ exited with 1 +++
child process Full strace output 
rt_sigaction(SIGHUP, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGINT, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGQUIT, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGILL, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGTRAP, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGABRT, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGFPE, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGUSR1, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGUSR2, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGPIPE, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGALRM, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGTERM, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGSTKFLT, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGCHLD, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGURG, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGXCPU, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGXFSZ, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGVTALRM, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGPROF, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGWINCH, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGIO, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGPWR, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGSYS, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_2, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_3, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_4, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_5, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_6, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_7, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_8, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_9, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_10, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_11, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_12, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_13, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_14, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_15, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_16, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_17, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_18, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_19, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_20, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_21, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_22, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_23, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_24, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_25, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_26, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_27, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_28, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_29, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_30, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_31, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigaction(SIGRT_32, {sa_handler=SIG_DFL, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x46e780}, NULL, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
dup2(7, 0)                              = 0
dup2(13, 1)                             = 1
dup2(25, 2)                             = 2
arch_prctl(ARCH_SET_FS, 0x111afd0)      = 0
sched_getaffinity(0, 8192, [0, 1, 2, 3, 4, 5, 6, 7]) = 8
read(3, "2097152\n", 20)                = 8
close(3)                                = 0
uname({sysname="Linux", nodename="san-00000491", ...}) = 0
read(3, "Linux version 5.4.0-58-generic ("..., 512) = 150
close(3)                                = 0
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6b362aa000
+++ killed by SIGKILL +++

@seankhliao seankhliao added NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. and removed WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided. labels Jan 15, 2021
@ianlancetaylor
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In order to get useful results for a Go program, you need to use strace -f.

In this case it's a SIGKILL signal. I would double-check that it's not the OOM killer. I don't see how go tool compile in particular could fail with a SIGKILL other than the OOM killer.

@nigelarmstrong-bc
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@ianlancetaylor I updated the strace output above. I have check the kernal logs (/var/log/kern.log) and do not see any instance of OOM killer running. I have also run the BPF tool killsnoop and don't even see any calls to kill(). So no idea where this kill could be coming from other than within the process. I have plenty of memory available (>16g free) and this only occurs with 1.15.6 and not 1.15.5.

@nigelarmstrong-bc
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Sorry for the issue. I have determined this to be an antivirus my employer installed on my machine that was killing the go compiler.

@ianlancetaylor
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Thanks for following up.

@golang golang locked and limited conversation to collaborators Jan 15, 2022
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