syzbot


fatal error: D0415 08:LINE.ADDR 1 task_signals.go:LINE] [ 7151] Signal 23: delivering to handler

Status: auto-closed as invalid on 2021/10/08 19:38
Reported-by: syzbot+599156ea6c796a7108c5@syzkaller.appspotmail.com
First crash: 1321d, last: 1321d

Sample crash report:
fatal error: D0415 08:21:27.277933       1 task_signals.go:220] [ 7151] Signal 23: delivering to handler
unexpected signal during runtime executionD0415 08:21:27.281596       1 task_signals.go:467] [ 7151] Notified of signal 23
D0415 08:21:27.288283       1 task_signals.go:220] [ 7151] Signal 23: delivering to handler

[signal SIGFPE: floating-point exception code=0x7 addr=0x426049 pc=0x426049]

D0415 08:21:27.309904       1 urpc.go:594] urpc: unmarshal success.
D0415 08:21:27.309953       1 controller.go:565] containerManager.Signal: cid: ci-gvisor-kvm-0, PID: 0, signal: 0, mode: Process
goroutine 4 [running]:
D0415 08:21:27.316121       1 urpc.go:551] urpc: successfully marshalled 37 bytes.
runtime.throwD0415 08:21:27.317623       1 urpc.go:594] urpc: unmarshal success.
(0x1300177I0415 08:21:27.701454       1 loader.go:632] Received external signal 17, mode: Process
D0415 08:21:27.701504       1 task_signals.go:467] [   1] Notified of signal 17
D0415 08:21:27.701549       1 task_signals.go:179] [   1] Restarting syscall 202 after errno 512: interrupted by signal 17
D0415 08:21:27.701570       1 task_signals.go:220] [   1] Signal 17: delivering to handler
, 0x2a)
	/usr/lib/go-1.15/src/runtime/panic.go:1116 +0x72 fp=0xc000627ac8 sp=0xc000627a98 pc=D0415 08:21:27.797799       1 urpc.go:551] urpc: successfully marshalled 941254 bytes.
0x4375b2
runtime.sigpanic()
	/usr/lib/go-1.15/src/runtime/signal_unix.go:726 +0x4ac fp=0xc000627af8 sp=0xc000627ac8 pc=0x44ddac
D0415 08:21:27.812849       1 urpc.go:594] urpc: unmarshal success.
D0415 08:21:27.812914       1 controller.go:200] containerManager.Processes, cid: ci-gvisor-kvm-0
D0415 08:21:27.814000       1 urpc.go:551] urpc: successfully marshalled 23287 bytes.
runtime.deductSweepCredit(0x2000, 0x0)
	/usr/lib/go-1.15/src/runtime/mgcsweep.go:862 +0xe9 fp=0xc000627b20 sp=0xc000627af8 pc=0x426049
runtime.(*mcentral).cacheSpan(0x52678d8, 0x0)
	/usr/lib/go-1.15/src/runtime/mcentral.go:101 +0x65 fp=0xc000627b98 sp=0xc000627b20 pc=0x4187c5
runtime.(*mcache).refill(0x7f9bddc07d60, 0x9)
	/usr/lib/go-1.15/src/runtime/mcache.go:142 +0xa5 fp=0xc000627bb8 sp=0xc000627b98 pc=0x4184e5
runtime.(*mcache).nextFree(0x7f9bddc07d60, 0x9, 0x0, 0x0, 0x0)
	/usr/lib/go-1.15/src/runtime/malloc.go:880 +0x8d fp=0xc000627bf0 sp=0xc000627bb8 pc=0x40d60d
runtime.mallocgc(0x30, 0x0, 0xc00008fd00, 0x418965)
	/usr/lib/go-1.15/src/runtime/malloc.go:1061 +0x834 fp=0xc000627c90 sp=0xc000627bf0 pc=0x40dff4
runtime.rawstring(0x23, 0x0, 0x0, 0x0, 0x0, 0x0)
	/usr/lib/go-1.15/src/runtime/string.go:263 +0x4f fp=0xc000627cc0 sp=0xc000627c90 pc=0x45390f
runtime.rawstringtmp(0x0, 0x23, 0x7f9bb6e05c00, 0xc00008fd38, 0x400, 0x52671d8, 0x7f9bb6c614c0)
	/usr/lib/go-1.15/src/runtime/string.go:131 +0x74 fp=0xc000627d00 sp=0xc000627cc0 pc=0x4532d4
runtime.concatstrings(0x0, 0xc000627de0, 0x2, 0x2, 0x161a120, 0x8)
	/usr/lib/go-1.15/src/runtime/string.go:50 +0xc5 fp=0xc000627d98 sp=0xc000627d00 pc=0x452d25
runtime.concatstring2(0x0, 0x125e0f5, 0xf, 0x1287e90, 0x14, 0x1, 0x161a120)
	/usr/lib/go-1.15/src/runtime/string.go:59 +0x47 fp=0xc000627dd8 sp=0xc000627d98 pc=0x452fa7
runtime.errorString.Error(...)
	/usr/lib/go-1.15/src/runtime/error.go:77
runtime.(*errorString).Error(0x1ec8600, 0x1063ac0, 0x1ec8600)
	<autogenerated>:1 +0x65 fp=0xc000627e20 sp=0xc000627dd8 pc=0x473805
runtime.preprintpanics(0xc000627f00)
	/usr/lib/go-1.15/src/runtime/panic.go:671 +0xa9 fp=0xc000627e80 sp=0xc000627e20 pc=0x4363a9
panic(0x1063ac0, 0x1ec8600)
	/usr/lib/go-1.15/src/runtime/panic.go:1062 +0x532 fp=0xc000627f48 sp=0xc000627e80 pc=0x437192
runtime.panicfloat(...)
	/usr/lib/go-1.15/src/runtime/panic.go:205
runtime.sigpanic()
	/usr/lib/go-1.15/src/runtime/signal_unix.go:757 +0x37b fp=0xc000627f78 sp=0xc000627f48 pc=0x44dc7b
runtime.bgscavenge(0xc0000ac000)
	/usr/lib/go-1.15/src/runtime/mgcscavenge.go:369 +0x1fc fp=0xc000627fd8 sp=0xc000627f78 pc=0x422b9c
runtime.goexit()
	/usr/lib/go-1.15/src/runtime/asm_amd64.s:1374 +0x1 fp=0xc000627fe0 sp=0xc000627fd8 pc=0x46fb61
created by runtime.gcenable
	/usr/lib/go-1.15/src/runtime/mgc.go:218 +0x7e

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/04/15 08:21 gvisor 272d2e116873 fcdb12ba .config console log report info ci-gvisor-kvm fatal error: D0415 08:LINE.ADDR 1 task_signals.go:LINE] [ 7151] Signal 23: delivering to handler
* Struck through repros no longer work on HEAD.