Closed
Description
What steps will reproduce the problem?
GOMAXPROCS=random ./run.bash --no-rebuild in a loop
What do you see instead?
# ../test
run mallocfin.go: incorrect output
checkdead: find g 4 in status 1
fatal error: checkdead: runnable g
goroutine 1 [sleep]:
time.Sleep(0xf4240)
/build/go.tip/go/src/pkg/runtime/ztime_linux_amd64.c:19 +0x2f
main.main()
/build/go.tip/go/test/mallocfin.go:68 +0x190
goroutine 3 [finalizer wait]:
exit status 2
exit status 1
Which compiler are you using (5g, 6g, 8g, gccgo)?
6g
Which operating system are you using?
linux
Which version are you using? (run 'go version')
go version devel +e7e2b3ec4717 Wed Mar 06 16:15:04 2013 -0800 linux/amd64
Please provide any additional information below.
I've seen another hint of this. I think I have a build where the go command deadlocked
while running short tests.
the test that timed out was compress/lzw, which usually takes only a few milliseconds,
so I suspect the go command that was running it got very confused.
panic: test timed out
goroutine 7 [running]:
testing.alarm()
/build/go.tip/go/src/pkg/testing/testing.go:526 +0x53
created by time.goFunc
/build/go.tip/go/src/pkg/time/sleep.go:122 +0x48
goroutine 1 [chan receive]:
testing.RunTests(0x52a0f8, 0x5b6000, 0x3, 0x3, 0x1, ...)
/build/go.tip/go/src/pkg/testing/testing.go:427 +0x88e
testing.Main(0x52a0f8, 0x5b6000, 0x3, 0x3, 0x5b6410, ...)
/build/go.tip/go/src/pkg/testing/testing.go:358 +0x8a
main.main()
compress/lzw/_test/_testmain.go:59 +0x9a
goroutine 5 [semacquire]:
sync.runtime_Semacquire(0xc200000118)
/build/go.tip/go/src/pkg/runtime/zsema_linux_amd64.c:165 +0x2e
sync.(*Cond).Wait(0xc2000a3030)
/build/go.tip/go/src/pkg/sync/cond.go:73 +0x95
io.(*pipe).read(0xc2000a3000, 0xc2000de000, 0x1000, 0x1000, 0x0, ...)
/build/go.tip/go/src/pkg/io/pipe.go:52 +0x1f2
io.(*PipeReader).Read(0xc200000108, 0xc2000de000, 0x1000, 0x1000,
0x51373842, ...)
/build/go.tip/go/src/pkg/io/pipe.go:130 +0x5d
bufio.(*Reader).fill(0xc2000a51e0)
/build/go.tip/go/src/pkg/bufio/bufio.go:79 +0x10c
bufio.(*Reader).ReadByte(0xc2000a51e0, 0x20, 0x0, 0x0)
/build/go.tip/go/src/pkg/bufio/bufio.go:171 +0x7d
compress/lzw.(*decoder).readLSB(0xc2000d8300, 0x414b5e, 0xc20004f008,
0x100000002)
/build/go.tip/go/src/pkg/compress/lzw/reader.go:83 +0x3a
compress/lzw.(*decoder).decode(0xc2000d8300)
/build/go.tip/go/src/pkg/compress/lzw/reader.go:133 +0x34
compress/lzw.(*decoder).Read(0xc2000d8300, 0xc200092a00, 0x200, 0x200,
0x201, ...)
/build/go.tip/go/src/pkg/compress/lzw/reader.go:122 +0x17e
bytes.(*Buffer).ReadFrom(0x7f7febee9a68, 0xc20004a630, 0xc2000d8300,
0x0, 0x0, ...)
/build/go.tip/go/src/pkg/bytes/buffer.go:166 +0x203
io/ioutil.readAll(0xc20004a630, 0xc2000d8300, 0x200, 0x0, 0x0, ...)
/build/go.tip/go/src/pkg/io/ioutil/ioutil.go:32 +0x141
io/ioutil.ReadAll(0xc20004a630, 0xc2000d8300, 0xc2000d8300,
0xc20004a630, 0xc2000d8300, ...)
/build/go.tip/go/src/pkg/io/ioutil/ioutil.go:41 +0x3d
compress/lzw.testFile(0xc20008e120, 0x5138e8, 0x11, 0x0, 0x6, ...)
/build/go.tip/go/src/pkg/compress/lzw/writer_test.go:67 +0x5d3
compress/lzw.TestWriter(0xc20008e120)
/build/go.tip/go/src/pkg/compress/lzw/writer_test.go:93 +0x172
testing.tRunner(0xc20008e120, 0x5b6018)
/build/go.tip/go/src/pkg/testing/testing.go:346 +0x8a
created by testing.RunTests
/build/go.tip/go/src/pkg/testing/testing.go:426 +0x86b
goroutine 6 [running]:
syscall.Syscall()
/build/go.tip/go/src/pkg/syscall/asm_linux_amd64.s:16 +0x5
syscall.read(0x4, 0xc2000c2000, 0x1000, 0x1000, 0x4301c0, ...)
/build/go.tip/go/src/pkg/syscall/zerrors_linux_amd64.go:2337 +0x70
syscall.Read(0x0, 0x43071e, 0xc2000b1000, 0x234, 0x0, ...)
/build/go.tip/go/src/pkg/syscall/syscall_unix.go:132 +0x5a
created by compress/lzw.testFile
/build/go.tip/go/src/pkg/compress/lzw/writer_test.go:61 +0x4b3
FAIL compress/lzw 120.020s