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panic: Watchdog goroutine is stuck (4)

Status: fixed on 2025/09/11 22:49
Reported-by: syzbot+8b7d7e12b59ffc6cdb9a@syzkaller.appspotmail.com
Fix commit: 973cf7601abe Fix incorrect lock order in execve(2) around TaskSet.mu
First crash: 265d, last: 173d
▶ ▼ Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
gvisor panic: Watchdog goroutine is stuck 2 C 1831 1786d 2084d 14/26 fixed on 2021/04/13 18:45
gvisor panic: Watchdog goroutine is stuck (2) 2 1 1739d 1732d 14/26 fixed on 2021/06/11 19:31
gvisor panic: Watchdog goroutine is stuck (3) 2 C 28 851d 1708d 0/26 closed as invalid on 2024/12/13 00:10

Sample crash report:
panic: Watchdog goroutine is stuck
	Stack for running G's are skipped while panicking.

goroutine 123 gp=0xc000179a40 m=39 mp=0xc0008cf008 [running]:
panic({0x1c0f260?, 0xc001126ea0?})
	GOROOT/src/runtime/panic.go:811 +0x168 fp=0xc00022bc98 sp=0xc00022bbe8 pc=0x47d728
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).doAction(0xc00037e080, 0x1, 0x0, 0xc00022bdd0)
	pkg/sentry/watchdog/watchdog.go:376 +0x499 fp=0xc00022bdb0 sp=0xc00022bc98 pc=0x129abf9
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).reportStuckWatchdog(0xc00037e080)
	pkg/sentry/watchdog/watchdog.go:341 +0x6a fp=0xc00022be08 sp=0xc00022bdb0 pc=0x129a72a
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).runTurn(0xc00037e080)
	pkg/sentry/watchdog/watchdog.go:276 +0x25b fp=0xc00022bf30 sp=0xc00022be08 pc=0x1299bfb
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).loop(0xc00037e080)
	pkg/sentry/watchdog/watchdog.go:254 +0x3b fp=0xc00022bfc0 sp=0xc00022bf30 pc=0x129989b
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).Start.gowrap2()
	pkg/sentry/watchdog/watchdog.go:205 +0x34 fp=0xc00022bfe0 sp=0xc00022bfc0 pc=0x1299294
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc00022bfe8 sp=0xc00022bfe0 pc=0x486aa1
created by gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).Start in goroutine 1
	pkg/sentry/watchdog/watchdog.go:205 +0x39b

Crashes (250):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/09/10 10:51 gvisor 3eb1b76e083f fdeaa69b .config console log report syz / log ci-gvisor-ptrace-3-race panic: Watchdog goroutine is stuck
2025/08/28 10:58 gvisor bb664f219b9c bee60a83 .config console log report syz / log ci-gvisor-ptrace-2-race panic: Watchdog goroutine is stuck
2025/08/28 02:45 gvisor bb664f219b9c e12e5ba4 .config console log report syz / log ci-gvisor-ptrace-3-race panic: Watchdog goroutine is stuck
2025/08/28 01:37 gvisor bb664f219b9c e12e5ba4 .config console log report syz / log ci-gvisor-systrap-1-race panic: Watchdog goroutine is stuck
2025/08/26 03:53 gvisor bb664f219b9c bf27483f .config console log report syz / log ci-gvisor-ptrace-2-race panic: Watchdog goroutine is stuck
2025/06/12 01:06 gvisor 84c77aa8ad7e 98683f8f .config console log report syz / log ci-gvisor-ptrace-3-race-cover panic: Watchdog goroutine is stuck
2025/08/22 18:03 gvisor bb664f219b9c bf27483f console log report syz / log ci-gvisor-arm64-ptrace-1 panic: Watchdog goroutine is stuck
2025/09/11 21:16 gvisor 40dfee4a1a3f e2beed91 .config console log report info ci-gvisor-ptrace-2-race panic: Watchdog goroutine is stuck
2025/09/11 14:34 gvisor 40dfee4a1a3f e2beed91 .config console log report info ci-gvisor-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/11 11:23 gvisor 40dfee4a1a3f e2beed91 .config console log report info ci-gvisor-ptrace-3-race panic: Watchdog goroutine is stuck
2025/09/11 07:19 gvisor f9ecfd997b86 fdeaa69b .config console log report info ci-gvisor-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/10 23:28 gvisor f9ecfd997b86 fdeaa69b .config console log report info ci-gvisor-systrap-1-race panic: Watchdog goroutine is stuck
2025/09/10 21:45 gvisor f9ecfd997b86 fdeaa69b .config console log report info ci-gvisor-ptrace-2-race panic: Watchdog goroutine is stuck
2025/09/10 20:42 gvisor 3eb1b76e083f fdeaa69b .config console log report info ci-gvisor-ptrace-2-race panic: Watchdog goroutine is stuck
2025/09/10 15:47 gvisor 3eb1b76e083f fdeaa69b .config console log report info ci-gvisor-ptrace-3-race panic: Watchdog goroutine is stuck
2025/09/10 13:32 gvisor 3eb1b76e083f fdeaa69b .config console log report info ci-gvisor-systrap-1-race panic: Watchdog goroutine is stuck
2025/09/10 07:03 gvisor e51dca431b51 fdeaa69b .config console log report info ci-gvisor-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/10 04:07 gvisor d6ba9944e431 fdeaa69b .config console log report info ci-gvisor-ptrace-2-race panic: Watchdog goroutine is stuck
2025/09/10 01:37 gvisor e51dca431b51 fdeaa69b .config console log report info ci-gvisor-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/10 00:33 gvisor e51dca431b51 fdeaa69b .config console log report info ci-gvisor-ptrace-3-race panic: Watchdog goroutine is stuck
2025/09/09 21:25 gvisor e51dca431b51 fdeaa69b .config console log report info ci-gvisor-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/09 20:25 gvisor e51dca431b51 fdeaa69b .config console log report info ci-gvisor-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/09 16:53 gvisor d6ba9944e431 d291dd2d .config console log report info ci-gvisor-ptrace-3-race panic: Watchdog goroutine is stuck
2025/09/09 16:12 gvisor d6ba9944e431 d291dd2d .config console log report info ci-gvisor-ptrace-2-race panic: Watchdog goroutine is stuck
2025/09/09 14:44 gvisor d6ba9944e431 d291dd2d .config console log report info ci-gvisor-systrap-1-race panic: Watchdog goroutine is stuck
2025/09/09 12:44 gvisor d6ba9944e431 d291dd2d .config console log report info ci-gvisor-ptrace-3-race panic: Watchdog goroutine is stuck
2025/09/09 10:47 gvisor fa6740723923 d291dd2d .config console log report info ci-gvisor-ptrace-3-race panic: Watchdog goroutine is stuck
2025/09/09 06:51 gvisor fa6740723923 d291dd2d .config console log report info ci-gvisor-ptrace-3-race panic: Watchdog goroutine is stuck
2025/09/09 04:58 gvisor fa6740723923 d291dd2d .config console log report info ci-gvisor-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/09 02:44 gvisor fa6740723923 d291dd2d .config console log report info ci-gvisor-systrap-1-race panic: Watchdog goroutine is stuck
2025/09/09 00:23 gvisor fa6740723923 d291dd2d .config console log report info ci-gvisor-systrap-1-race panic: Watchdog goroutine is stuck
2025/09/08 21:09 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-systrap-1-race panic: Watchdog goroutine is stuck
2025/09/08 18:17 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-ptrace-3-race panic: Watchdog goroutine is stuck
2025/09/07 10:31 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-ptrace-2-race panic: Watchdog goroutine is stuck
2025/09/07 08:22 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-ptrace-3-race panic: Watchdog goroutine is stuck
2025/09/07 07:17 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/07 03:34 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/07 00:49 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-systrap-1-race panic: Watchdog goroutine is stuck
2025/09/06 23:49 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/06 21:21 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-systrap-1-race panic: Watchdog goroutine is stuck
2025/09/06 19:55 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-ptrace-2-race panic: Watchdog goroutine is stuck
2025/09/06 15:22 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/06 10:31 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-ptrace-3-race panic: Watchdog goroutine is stuck
2025/09/06 09:23 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-ptrace-3-race panic: Watchdog goroutine is stuck
2025/09/06 08:16 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-ptrace-2-race panic: Watchdog goroutine is stuck
2025/09/06 01:27 gvisor 2f7f776a4464 d291dd2d .config console log report info ci-gvisor-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/06 00:35 gvisor 2f7f776a4464 d291dd2d .config console log report info ci-gvisor-ptrace-3-race panic: Watchdog goroutine is stuck
2025/09/05 20:51 gvisor 2f7f776a4464 d291dd2d .config console log report info ci-gvisor-ptrace-3-race panic: Watchdog goroutine is stuck
2025/09/05 01:23 gvisor 16e9064d97c6 d291dd2d .config console log report info ci-gvisor-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/04 21:01 gvisor 1f322159d285 d291dd2d .config console log report info ci-gvisor-ptrace-2-race panic: Watchdog goroutine is stuck
2025/09/04 19:39 gvisor 1f322159d285 d291dd2d .config console log report info ci-gvisor-ptrace-2-race panic: Watchdog goroutine is stuck
2025/06/12 10:11 gvisor cbf278951e7e 98683f8f .config console log report info ci-gvisor-systrap-1-cover panic: Watchdog goroutine is stuck
2025/06/12 06:37 gvisor cbf278951e7e 98683f8f .config console log report info ci-gvisor-ptrace-1-race-cover panic: Watchdog goroutine is stuck
2025/06/11 16:42 gvisor 84c77aa8ad7e 98683f8f .config console log report info ci-gvisor-ptrace-3-race-cover panic: Watchdog goroutine is stuck
2025/09/11 04:45 gvisor f9ecfd997b86 fdeaa69b console log report info ci-gvisor-arm64-systrap-1 panic: Watchdog goroutine is stuck
2025/09/11 03:10 gvisor 2188c04c230b fdeaa69b .config console log report info ci-gvisor-arm64-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/08 22:39 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-arm64-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/08 15:41 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-arm64-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/07 13:21 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-arm64-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/06 17:00 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-arm64-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/06 13:33 gvisor fde8adbe9829 d291dd2d .config console log report info ci-gvisor-arm64-systrap-1-race panic: Watchdog goroutine is stuck
2025/09/06 03:24 gvisor bf4fd11e1bf6 d291dd2d .config console log report info ci-gvisor-arm64-systrap-1-race panic: Watchdog goroutine is stuck
2025/09/05 06:56 gvisor 16e9064d97c6 d291dd2d .config console log report info ci-gvisor-arm64-ptrace-1-race panic: Watchdog goroutine is stuck
2025/09/03 14:36 gvisor 376319f48048 19216959 console log report info ci-gvisor-arm64-systrap-1 panic: Watchdog goroutine is stuck
2025/08/25 15:17 gvisor bb664f219b9c bf27483f console log report info ci-gvisor-arm64-ptrace-1 panic: Watchdog goroutine is stuck
* Struck through repros no longer work on HEAD.