syzbot


kvm: panic: Watchdog goroutine is stuck (5)

Status: auto-closed as invalid on 2022/07/07 18:38
Reported-by: syzbot+e1ba491ce77b28406734@syzkaller.appspotmail.com
First crash: 1143d, last: 962d
Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
gvisor kvm: panic: Watchdog goroutine is stuck 240 1341d 1351d 14/26 fixed on 2021/03/26 06:57
gvisor kvm: panic: Watchdog goroutine is stuck (6) C 19 540d 768d 0/26 moderation: reported C repro on 2022/10/20 05:44
gvisor kvm: panic: Watchdog goroutine is stuck (3) C 48 1265d 1315d 14/26 fixed on 2021/06/12 08:48
gvisor kvm: panic: Watchdog goroutine is stuck (4) 18 1186d 1243d 14/26 fixed on 2021/09/25 08:25
gvisor kvm: panic: Watchdog goroutine is stuck (2) 110 1323d 1340d 14/26 fixed on 2021/04/13 18:45

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

goroutine 30 [running]:
panic({0x119e6c0, 0xc00ebde370})
	GOROOT/src/runtime/panic.go:1147 +0x3a8 fp=0xc000493d60 sp=0xc000493ca0 pc=0x4351c8
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).doAction(0xc000493e40, 0x139cac4, 0x1b, 0xc000493e40)
	pkg/sentry/watchdog/watchdog.go:380 +0x3b4 fp=0xc000493e20 sp=0xc000493d60 pc=0xc58374
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).reportStuckWatchdog(0xc0000fa100)
	pkg/sentry/watchdog/watchdog.go:345 +0x69 fp=0xc000493e78 sp=0xc000493e20 pc=0xc57f89
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).runTurn(0xc0000fa100)
	pkg/sentry/watchdog/watchdog.go:278 +0x192 fp=0xc000493f58 sp=0xc000493e78 pc=0xc576f2
	pkg/tcpip/transport/tcp/dispatcher.go:97 +0xbd
created by gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*dispatcher).init
	pkg/tcpip/transport/tcp/dispatcher.go:164 +0xc5

Crashes (16):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/04/08 18:37 gvisor 423589b41ac7 15be3cba .config console log report info ci-gvisor-kvm-cover kvm: panic: Watchdog goroutine is stuck
2022/04/05 23:15 gvisor bfd3f716ab34 0127c10f .config console log report info ci-gvisor-kvm kvm: panic: Watchdog goroutine is stuck
2022/03/26 01:31 gvisor 28cf71cc61c5 89bc8608 .config console log report info ci-gvisor-kvm kvm: panic: Watchdog goroutine is stuck
2022/03/24 18:45 gvisor 7da1c59e773f 89bc8608 .config console log report info ci-gvisor-kvm kvm: panic: Watchdog goroutine is stuck
2022/03/14 04:21 gvisor ee133dbcf204 9e8eaa75 .config console log report info ci-gvisor-kvm kvm: panic: Watchdog goroutine is stuck
2022/02/23 10:50 gvisor 8643fe526e2b 6e821dbf .config console log report info ci-gvisor-kvm kvm: panic: Watchdog goroutine is stuck
2022/02/22 17:58 gvisor 6e5b602ee1a1 6e821dbf .config console log report info ci-gvisor-kvm kvm: panic: Watchdog goroutine is stuck
2022/02/05 01:32 gvisor dce4528a1a95 e13a05ed .config console log report info ci-gvisor-kvm-cover kvm: panic: Watchdog goroutine is stuck
2022/02/04 20:57 gvisor dce4528a1a95 a3e470b2 .config console log report info ci-gvisor-kvm kvm: panic: Watchdog goroutine is stuck
2022/01/29 02:19 gvisor e98016263b1e 495e00c5 .config console log report info ci-gvisor-kvm kvm: panic: Watchdog goroutine is stuck
2022/01/28 11:24 gvisor 2083e858ad8d 495e00c5 .config console log report info ci-gvisor-kvm kvm: panic: Watchdog goroutine is stuck
2021/11/23 00:42 gvisor 2bedb2dc397a 545ab074 .config console log report info ci-gvisor-kvm-cover kvm: panic: Watchdog goroutine is stuck
2021/11/07 21:49 gvisor ce4f4283badb 4c1be0be .config console log report info ci-gvisor-kvm-cover kvm: panic: Watchdog goroutine is stuck
2021/11/07 03:19 gvisor ce4f4283badb 4c1be0be .config console log report info ci-gvisor-kvm-cover kvm: panic: Watchdog goroutine is stuck
2021/11/03 20:16 gvisor 5185548e157b 4c1be0be .config console log report info ci-gvisor-kvm kvm: panic: Watchdog goroutine is stuck
2021/10/10 10:12 gvisor 3f1642e4bc86 838e7e2c .config console log report info ci-gvisor-kvm-cover kvm: panic: Watchdog goroutine is stuck
* Struck through repros no longer work on HEAD.