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cmd/go: segfault when compiling on Bash for Windows #18705

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egtann opened this issue Jan 18, 2017 · 2 comments
Closed

cmd/go: segfault when compiling on Bash for Windows #18705

egtann opened this issue Jan 18, 2017 · 2 comments
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Go1.9

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@egtann
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egtann commented Jan 18, 2017 •
edited

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

go version go1.7.3 linux/amd64

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

GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"                                                                                                                                                  %GOPATH="/home/___/go"
GORACE=""
GOROOT="/usr/local/go"
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"                                                                                                                tCC="gcc"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build087440557=/tmp/go-build -gno-record-gcc-switches"
CXX="g++"
CGO_ENABLED="1"

Using Bash for Windows on the latest Insider Fast Track build (15007), but this has been happening for many builds now.

What did you do?

If possible, provide a recipe for reproducing the error.

Segfault occurs when compiling the following program: https://play.golang.org/p/jpxpcTMV6-

What did you expect to see?

A list of the errors preventing the program from compiling.

What did you see instead?

[signal SIGSEGV: segmentation violation code=0x80 addr=0x48 pc=0x657d6c]
                                                                                                                                                              lgoroutine 1 [running]:
runtime.throw(0x8f3377, 0x5)
        /usr/local/go/src/runtime/panic.go:566 +0x95 fp=0xc42103a610 sp=0xc42103a5f0
runtime.sigpanic()
        /usr/local/go/src/runtime/sigpanic_unix.go:27 +0x288 fp=0xc42103a668 sp=0xc42103a610
cmd/compile/internal/gc.typecheckdef(0xc4209d55f0, 0x0)
        /usr/local/go/src/cmd/compile/internal/gc/typecheck.go:3712 +0x77c fp=0xc42103a7a8 sp=0xc42103a668
cmd/compile/internal/gc.typecheck1(0xc4209d55f0, 0x6, 0x4)
        /usr/local/go/src/cmd/compile/internal/gc/typecheck.go:266 +0xd3e0 fp=0xc42103b6b8 sp=0xc42103a7a8
cmd/compile/internal/gc.typecheck(0xc4209d55f0, 0x6, 0x0)
        /usr/local/go/src/cmd/compile/internal/gc/typecheck.go:188 +0x654 fp=0xc42103b7e0 sp=0xc42103b6b8
cmd/compile/internal/gc.typecheck1(0xc42065aab0, 0x4, 0x7f6cd27f8610)                                                                                         %
        /usr/local/go/src/cmd/compile/internal/gc/typecheck.go:476 +0x7e45 fp=0xc42103c6f0 sp=0xc42103b7e0
cmd/compile/internal/gc.typecheck(0xc42065aab0, 0x4, 0x8)
/usr/local/go/src/cmd/compile/internal/gc/typecheck.go:188 +0x654 fp=0xc420fcc818 sp=0xc420fcc6f0
cmd/compile/internal/gc.structfield(0xc42064abd0, 0x1)
        /usr/local/go/src/cmd/compile/internal/gc/dcl.go:750 +0x2ca fp=0xc420fcc880 sp=0xc420fcc818
cmd/compile/internal/gc.tofunargs(0xc420628648, 0x1, 0x1, 0xc4200dc702, 0xc420fb78b0)
        /usr/local/go/src/cmd/compile/internal/gc/dcl.go:845 +0xc3 fp=0xc420fcc900 sp=0xc420fcc880
cmd/compile/internal/gc.functype0(0xc420fb7810, 0x0, 0xc420628648, 0x1, 0x1, 0xc420628650, 0x1, 0x1)
        /usr/local/go/src/cmd/compile/internal/gc/dcl.go:1039 +0x1a5 fp=0xc420fcc990 sp=0xc420fcc900
cmd/compile/internal/gc.functype(0x0, 0xc420628648, 0x1, 0x1, 0xc420628650, 0x1, 0x1, 0xc42064a900)
        /usr/local/go/src/cmd/compile/internal/gc/dcl.go:1024 +0x89 fp=0xc420fcc9e8 sp=0xc420fcc990
cmd/compile/internal/gc.typecheck1(0xc42064ad80, 0x4, 0xc420fa8c01)
        /usr/local/go/src/cmd/compile/internal/gc/typecheck.go:466 +0xc8c8 fp=0xc420fcd8f8 sp=0xc420fcc9e8
cmd/compile/internal/gc.typecheck(0xc42064ad80, 0x4, 0xc42064a900)
        /usr/local/go/src/cmd/compile/internal/gc/typecheck.go:188 +0x654 fp=0xc420fcda20 sp=0xc420fcd8f8
cmd/compile/internal/gc.typecheckdef(0xc42064aea0, 0x0)
        /usr/local/go/src/cmd/compile/internal/gc/typecheck.go:3669 +0x65e fp=0xc420fcdb60 sp=0xc420fcda20
cmd/compile/internal/gc.typecheck1(0xc42064aea0, 0x22, 0xc4207b2ac8)
        /usr/local/go/src/cmd/compile/internal/gc/typecheck.go:266 +0xd3e0 fp=0xc420fcea70 sp=0xc420fcdb60
cmd/compile/internal/gc.typecheck(0xc42064aea0, 0x22, 0x0)
        /usr/local/go/src/cmd/compile/internal/gc/typecheck.go:188 +0x654 fp=0xc420fceb98 sp=0xc420fcea70
cmd/compile/internal/gc.typecheckfunc(0xc42064ae10)
        /usr/local/go/src/cmd/compile/internal/gc/typecheck.go:3368 +0x40 fp=0xc420fcebd0 sp=0xc420fceb98
cmd/compile/internal/gc.typecheck1(0xc42064ae10, 0x1, 0xc42064a990)
        /usr/local/go/src/cmd/compile/internal/gc/typecheck.go:2076 +0x643e fp=0xc420fcfae0 sp=0xc420fcebd0
/usr/local/go/src/cmd/compile/internal/gc/typecheck.go:188 +0x654 fp=0xc420fcfc08 sp=0xc420fcfae0
cmd/compile/internal/gc.Main()
        /usr/local/go/src/cmd/compile/internal/gc/main.go:367 +0x15e8 fp=0xc420fcfe50 sp=0xc420fcfc08
cmd/compile/internal/amd64.Main()
        /usr/local/go/src/cmd/compile/internal/amd64/galign.go:93 +0x2fa fp=0xc420fcfe88 sp=0xc420fcfe50
main.main()
        /usr/local/go/src/cmd/compile/main.go:33 +0x2a3 fp=0xc420fcff18 sp=0xc420fcfe88
runtime.main()
        /usr/local/go/src/runtime/proc.go:183 +0x1f4 fp=0xc420fcff70 sp=0xc420fcff18
runtime.goexit()
        /usr/local/go/src/runtime/asm_amd64.s:2086 +0x1 fp=0xc420fcff78 sp=0xc420fcff70
@rakyll rakyll changed the title Segfault when compiling on Bash for Windows cmd/go: segfault when compiling on Bash for Windows Jan 18, 2017
@rakyll rakyll added this to the Go1.9 milestone Jan 18, 2017
@bradfitz
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In general, we don't make special exceptions or officially support Bash on Windows. Microsoft's intention is for their Linux system call implementation to match the behavior of Linux, so any deviation in behavior is a bug in the Linux Subsystem for Windows.

I recommend you file a bug against their bug tracker.

Our meta issue for deciding whether to support and track Go-on-WindowsLinux is #17365, so this is effectively a dup of that one.

@egtann
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egtann commented Jan 18, 2017

That makes sense. I'll file a bug with Microsoft.

@egtann egtann mentioned this issue Jan 18, 2017
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