building

changeset:   21267:c312f5855b33
user:        Brad Fitzpatrick <bradfitz@golang.org>
date:        Tue Sep 23 14:55:19 2014 -0700
summary:     os: add a comment inside RemoveAll

on our windows-amd64 builder
http://build.golang.org/log/be7ba156626f7004cccfc3cae83c78b2fa99df0e

we see this

# GOMAXPROCS=2 runtime -cpu=1,2,4
panic: test timed out after 5m0s

goroutine 83214 [running]:
testing.func·008()
    c:/go/src/testing/testing.go:680 +0x12d
created by time.goFunc
    c:/go/src/time/sleep.go:122 +0x52

goroutine 1 [chan receive, 2 minutes]:
testing.RunTests(0x6a4a20, 0x765320, 0x85, 0x85, 0xb3852a81ef419001)
    c:/go/src/testing/testing.go:556 +0xacd
testing.(*M).Run(0xc08200a2d0, 0x773500)
    c:/go/src/testing/testing.go:485 +0x73
main.main()
    runtime/_test/_testmain.go:710 +0x221

goroutine 83213 [syscall, 2 minutes, locked to thread]:
syscall.ReadFile(0x1a8, 0xc082227a32, 0x3ce, 0x3ce, 0xc08203fcfc, 0x0, 0x0, 0x0)
    c:/go/src/syscall/zsyscall_windows.go:276 +0xcf
syscall.Read(0x1a8, 0xc082227a32, 0x3ce, 0x3ce, 0x34, 0x0, 0x0)
    c:/go/src/syscall/syscall_windows.go:284 +0x89
os.(*File).read(0xc08202a8a8, 0xc082227a32, 0x3ce, 0x3ce, 0x0, 0x0, 0x0)
    c:/go/src/os/file_windows.go:298 +0x140
os.(*File).Read(0xc08202a8a8, 0xc082227a32, 0x3ce, 0x3ce, 0x34, 0x0, 0x0)
    c:/go/src/os/file.go:95 +0x9e
bytes.(*Buffer).ReadFrom(0xc0820e2310, 0x346730, 0xc08202a8a8, 0xa32, 0x0, 0x0)
    c:/go/src/bytes/buffer.go:169 +0x26c
io.Copy(0x3466e0, 0xc0820e2310, 0x346730, 0xc08202a8a8, 0x0, 0x0, 0x0)
    c:/go/src/io/io.go:358 +0x144
os/exec.func·003(0x0, 0x0)
    c:/go/src/os/exec/exec.go:214 +0x84
os/exec.func·004(0xc0820dca00)
    c:/go/src/os/exec/exec.go:321 +0x34
created by os/exec.(*Cmd).Start
    c:/go/src/os/exec/exec.go:322 +0xcd0

goroutine 83210 [syscall, 2 minutes, locked to thread]:
syscall.WaitForSingleObject(0x1a4, 0xc0ffffffff, 0x405288, 0x0, 0x0)
    c:/go/src/syscall/zsyscall_windows.go:683 +0x76
os.(*Process).wait(0xc0820dcd20, 0x0, 0x0, 0x0)
    c:/go/src/os/exec_windows.go:16 +0x92
os.(*Process).Wait(0xc0820dcd20, 0xc0820de5c0, 0x0, 0x0)
    c:/go/src/os/doc.go:45 +0x41
os/exec.(*Cmd).Wait(0xc0823cea00, 0x0, 0x0)
    c:/go/src/os/exec/exec.go:357 +0x267
os/exec.(*Cmd).Run(0xc0823cea00, 0x0, 0x0)
    c:/go/src/os/exec/exec.go:239 +0x78
os/exec.(*Cmd).CombinedOutput(0xc0823cea00, 0x0, 0x0, 0x0, 0x0, 0x0)
    c:/go/src/os/exec/exec.go:401 +0x37b
runtime_test.executeTest(0xc082effb00, 0x68d530, 0x45, 0x0, 0x0, 0x0, 0x0)
    c:/gobuilder/windows-amd64-c312f5855b33/go/src/runtime/crash_test.go:64 +0x96e
runtime_test.TestBreakpoint(0xc082effb00)
    c:/gobuilder/windows-amd64-c312f5855b33/go/src/runtime/crash_test.go:195 +0x58
testing.tRunner(0xc082effb00, 0x765590)
    c:/go/src/testing/testing.go:447 +0xc7
created by testing.RunTests
    c:/go/src/testing/testing.go:555 +0xa82
FAIL    runtime 300.106s

It is impossible to say what is wrong without error output. Perhaps we don't see the
output for the same reason as in issue #8006.

I cannot reproduce that error here.

Alex