runtime: slice bounds out of range: panic during panic

[pmishchenko-ua]

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

$ go version
go version go1.13.8 linux/amd64

Does this issue reproduce with the latest release?

haven't tried since it occurred on a machine controlled by third-pary

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

Linux local 4.19.0-13-amd64 #1 SMP Debian 4.19.160-2 (2020-11-28) x86_64 GNU/Linux

go env Output

$ go env
O111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/pmishchenko-ua/.cache/go-build"
GOENV="/home/pmishchenko-ua/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/pmishchenko-ua/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-build816744651=/tmp/go-build -gno-record-gcc-switches"

What did you do?

Cobra-based CLI program has been distributed and failed on one the machines it was run on

What did you expect to see?

A link to where the actual code failed

What did you see instead?

The message about panic during throwing panic:

runtime stack:
runtime.throw(0x9b9400, 0x19)
/usr/local/go/src/runtime/panic.go:774 +0x72
runtime.panicCheck1(0x44c04d, 0x9b9400, 0x19)
/usr/local/go/src/runtime/panic.go:21 +0xd9
runtime.goPanicSliceB(0x66400103, 0x2f05f9)
/usr/local/go/src/runtime/panic.go:102 +0x44
runtime.pcvalue(0xb3cfc8, 0xd91160, 0x66400103, 0x4ba020, 0x7f58cceee960, 0xa70301, 0xaf06b0)
/usr/local/go/src/runtime/symtab.go:671 +0x54d
runtime.funcspdelta(0xb3cfc8, 0xd91160, 0x4ba020, 0x7f58cceee960, 0x10)
/usr/local/go/src/runtime/symtab.go:775 +0x5f
runtime.gentraceback(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0xc0001cb980, 0x0, 0x0, 0x7fffffff, 0x9d94f8, 0x7f58cceeebe0, 0x0, ...)
/usr/local/go/src/runtime/traceback.go:220 +0x1598
runtime.copystack(0xc0001cb980, 0x1000, 0x7f58d0868801)
/usr/local/go/src/runtime/stack.go:886 +0x25a
runtime.newstack()
/usr/local/go/src/runtime/stack.go:1055 +0x2fb
runtime.morestack()
/usr/local/go/src/runtime/asm_amd64.s:449 +0x8f

goroutine 18 [copystack]:
runtime.newMarkBits(0x400, 0x0)
/usr/local/go/src/runtime/mheap.go:1933 +0x349 fp=0xc00020cb68 sp=0xc00020cb60 pc=0x429769
runtime.heapBits.initSpan(0x7f58cdf06100, 0x20300000000000, 0x7f58ce0f1fff, 0x7f58d0868848)
/usr/local/go/src/runtime/mbitmap.go:792 +0x74 fp=0xc00020cbe8 sp=0xc00020cb68 pc=0x416e74
runtime.(*mcentral).grow(0xdd5d18, 0x0)
/usr/local/go/src/runtime/mcentral.go:264 +0x13e fp=0xc00020cc28 sp=0xc00020cbe8 pc=0x41952e
runtime.(*mcentral).cacheSpan(0xdd5d18, 0x50)
/usr/local/go/src/runtime/mcentral.go:106 +0x2fe fp=0xc00020cc88 sp=0xc00020cc28 pc=0x418f8e
runtime.(*mcache).refill(0x7f58d08c2d98, 0x2)
/usr/local/go/src/runtime/mcache.go:138 +0x85 fp=0xc00020cca8 sp=0xc00020cc88 pc=0x418a35
runtime.(*mcache).nextFree(0x7f58d08c2d98, 0x50010000418e02, 0x0, 0xc0000dd558, 0x418e2e)
/usr/local/go/src/runtime/malloc.go:854 +0x87 fp=0xc00020cce0 sp=0xc00020cca8 pc=0x40d4e7
runtime.mallocgc(0x8, 0x911800, 0x1, 0xc0000dd638)
/usr/local/go/src/runtime/malloc.go:1022 +0x793 fp=0xc00020cd80 sp=0xc00020cce0 pc=0x40de23
runtime.growslice(0x911800, 0x0, 0x0, 0x0, 0x1, 0x0, 0xc0000e2a80, 0x7f58d08c2d98)
/usr/local/go/src/runtime/slice.go:181 +0x1e2 fp=0xc00020cde8 sp=0xc00020cd80 pc=0x445502
runtime.(*timersBucket).addtimerLocked(0xdd39e0, 0xc000280008, 0x20)
/usr/local/go/src/runtime/time.go:153 +0x186 fp=0xc00020ce38 sp=0xc00020cde8 pc=0x44cfe6
runtime.addtimer(0xc000280008)
/usr/local/go/src/runtime/time.go:134 +0x81 fp=0xc00020ce78 sp=0xc00020ce38 pc=0x44ce01
time.startTimer(0xc000280008)
/usr/local/go/src/runtime/time.go:114 +0x2b fp=0xc00020ce90 sp=0xc00020ce78 pc=0x44cc9b
fatal error: slice bounds out of range
panic during panic

runtime stack:
runtime.throw(0x9b9400, 0x19)
/usr/local/go/src/runtime/panic.go:774 +0x72
runtime.panicCheck1(0x44c04d, 0x9b9400, 0x19)
/usr/local/go/src/runtime/panic.go:21 +0xd9
runtime.goPanicSliceB(0x66400103, 0x2f05f9)
/usr/local/go/src/runtime/panic.go:102 +0x44
runtime.pcvalue(0xb3cfc8, 0xd91160, 0x66400103, 0x4ba020, 0x7f58cceee198, 0x9ae101, 0x1)
/usr/local/go/src/runtime/symtab.go:671 +0x54d
runtime.funcspdelta(0xb3cfc8, 0xd91160, 0x4ba020, 0x7f58cceee198, 0x21)
/usr/local/go/src/runtime/symtab.go:775 +0x5f
runtime.gentraceback(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0xc0001cb980, 0x0, 0x0, 0x64, 0x0, 0x0, 0x0, ...)
/usr/local/go/src/runtime/traceback.go:220 +0x1598
runtime.traceback1(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0xc0001cb980, 0x0)
/usr/local/go/src/runtime/traceback.go:722 +0xf0
runtime.traceback(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0xc0001cb980)
/usr/local/go/src/runtime/traceback.go:676 +0x52
runtime.tracebackothers(0xc000001500)
/usr/local/go/src/runtime/traceback.go:911 +0x28a
runtime.dopanic_m(0xc000001500, 0x42f602, 0x7f58cceee6c0, 0x1)
/usr/local/go/src/runtime/panic.go:974 +0x29e
runtime.fatalthrow.func1()
/usr/local/go/src/runtime/panic.go:829 +0x5f
runtime.fatalthrow()
/usr/local/go/src/runtime/panic.go:826 +0x57
runtime.throw(0x9b9400, 0x19)
/usr/local/go/src/runtime/panic.go:774 +0x72
runtime.panicCheck1(0x44c04d, 0x9b9400, 0x19)
/usr/local/go/src/runtime/panic.go:21 +0xd9
runtime.goPanicSliceB(0x66400103, 0x2f05f9)
/usr/local/go/src/runtime/panic.go:102 +0x44
runtime.pcvalue(0xb3cfc8, 0xd91160, 0x66400103, 0x4ba020, 0x7f58cceee960, 0xa70301, 0xaf06b0)
/usr/local/go/src/runtime/symtab.go:671 +0x54d
runtime.funcspdelta(0xb3cfc8, 0xd91160, 0x4ba020, 0x7f58cceee960, 0x10)
/usr/local/go/src/runtime/symtab.go:775 +0x5f
runtime.gentraceback(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0xc0001cb980, 0x0, 0x0, 0x7fffffff, 0x9d94f8, 0x7f58cceeebe0, 0x0, ...)
/usr/local/go/src/runtime/traceback.go:220 +0x1598
runtime.copystack(0xc0001cb980, 0x1000, 0x7f58d0868801)
/usr/local/go/src/runtime/stack.go:886 +0x25a
runtime.newstack()
/usr/local/go/src/runtime/stack.go:1055 +0x2fb
runtime.morestack()
/usr/local/go/src/runtime/asm_amd64.s:449 +0x8f

[ianlancetaylor]

We no longer support Go 1.13. It would be useful to know whether this happens with a newer Go release. Thanks.

[davecheney]

This could be memory corruption. Have you tried running your program under the race detector? See https://blog.golang.org/race-detector .

[pmishchenko-ua]

Thanks for prompt responses! The issue has not been reproduced after the machine reboot, so some sort of memory corruption should have occurred indeed. If the stacktrace above is not sufficient for any kind of investigation, then the ticket can be closed