syzbot

 sign-in | mailing list | source | docs
🐞 Open [11]
🐞 Fixed [565]
🐞 Invalid [430]
≡ Crashes
Kernel Health Bugs/Month Bug Lifetimes Fuzzing
💬 Send us feedback

kvm: panic: Sentry detected stuck tasks (10)

Status: fixed on 2022/11/30 11:09
Fix commit: ece02b45b5b4 Add a maximum to the total number of mounts allowed in a namespace.
First crash: 1279d, last: 1261d
▶ ▼ Similar bugs (26)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
gvisor kvm: panic: Sentry detected stuck tasks (2) -1 C 66 1684d 1846d 14/26 fixed on 2021/09/25 08:25
gvisor kvm: panic: Sentry detected stuck tasks (26) -1 C 3 368d 369d 0/26 closed as invalid on 2025/04/25 22:43
gvisor kvm: panic: Sentry detected stuck tasks (7) -1 1 1438d 1431d 14/26 fixed on 2022/06/09 21:04
gvisor kvm: panic: Sentry detected stuck tasks (19) -1 3 897d 896d 26/26 fixed on 2023/11/15 20:33
gvisor kvm: panic: Sentry detected stuck tasks (23) -1 1 770d 770d 0/26 auto-obsoleted due to no activity on 2024/06/25 13:36
gvisor kvm: panic: Sentry detected stuck tasks -1 C 152 1861d 1877d 14/26 fixed on 2021/03/24 13:21
gvisor kvm: panic: Sentry detected stuck tasks (24) -1 C 9 504d 547d 26/26 fixed on 2024/12/11 10:55
gvisor kvm: panic: Sentry detected stuck tasks (6) -1 15 1520d 1530d 14/26 fixed on 2022/03/01 23:36
gvisor kvm: panic: Sentry detected stuck tasks (18) -1 C 3 909d 914d 26/26 fixed on 2023/11/03 12:12
gvisor kvm: panic: Sentry detected stuck tasks (4) -1 C 627 1600d 1628d 14/26 fixed on 2021/12/10 13:30
gvisor kvm: panic: Sentry detected stuck tasks (27) -1 C 5 365d 367d 26/26 fixed on 2025/05/02 08:36
gvisor kvm: panic: Sentry detected stuck tasks (22) -1 C 8 876d 886d 26/26 fixed on 2023/12/12 09:56
gvisor kvm: panic: Sentry detected stuck tasks (8) -1 1 1356d 1356d 0/26 closed as invalid on 2022/08/11 16:05
gvisor kvm: panic: Sentry detected stuck tasks (11) -1 1 1243d 1242d 0/26 closed as invalid on 2022/12/05 18:51
gvisor kvm: panic: Sentry detected stuck tasks (21) -1 C 2 891d 892d 26/26 fixed on 2023/11/21 23:47
gvisor kvm: panic: Sentry detected stuck tasks (15) -1 C 186 985d 987d 26/26 fixed on 2023/08/19 00:49
gvisor kvm: panic: Sentry detected stuck tasks (28) -1 C 11 316d 321d 26/26 fixed on 2025/07/10 09:16
gvisor kvm: panic: Sentry detected stuck tasks (20) -1 C 2 895d 895d 26/26 fixed on 2023/11/17 11:27
gvisor kvm: panic: Sentry detected stuck tasks (29) -1 C 3 163d 164d 26/26 fixed on 2025/11/19 02:01
gvisor kvm: panic: Sentry detected stuck tasks (5) -1 C 65 1531d 1593d 14/26 fixed on 2022/02/18 08:00
gvisor kvm: panic: Sentry detected stuck tasks (25) -1 C 3409 377d 473d 26/26 fixed on 2025/04/24 21:45
gvisor kvm: panic: Sentry detected stuck tasks (9) -1 2 1327d 1329d 14/26 fixed on 2022/09/20 07:30
gvisor kvm: panic: Sentry detected stuck tasks (3) -1 1 1645d 1645d 0/26 closed as invalid on 2021/10/27 19:47
gvisor kvm: panic: Sentry detected stuck tasks (12) -1 193 1054d 1216d 26/26 fixed on 2023/06/10 02:45
gvisor kvm: panic: Sentry detected stuck tasks (14) -1 syz 4 999d 1005d 26/26 fixed on 2023/08/08 01:03
gvisor kvm: panic: Sentry detected stuck tasks (17) -1 14 934d 964d 26/26 fixed on 2023/10/09 12:22

Sample crash report:
panic: Sentry detected 1 stuck task(s):
	Task tid: 419 (goroutine 8346), entered RunSys state 3m40.19s ago.
Search for 'goroutine <id>' in the stack dump to find the offending goroutine(s)
Stack for running G's are skipped while panicking.

goroutine 108 [running]:
panic({0x1048660, 0xc00581d740})
	GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc00132ac88 sp=0xc00132abc8 pc=0x4358b7
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).doAction(0xc00132ae08?, 0x128d0b2?, 0x44?, 0xc00132adb0)
	pkg/sentry/watchdog/watchdog.go:379 +0x3a5 fp=0xc00132ad48 sp=0xc00132ac88 pc=0xc0ec45
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).report(0xc0000e6500, 0xc0204cd230, 0x0?, {0x0?})
	pkg/sentry/watchdog/watchdog.go:338 +0x291 fp=0xc00132ae78 sp=0xc00132ad48 pc=0xc0e7b1
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).runTurn(0xc0000e6500)
	pkg/sentry/watchdog/watchdog.go:320 +0x5a5 fp=0xc00132af58 sp=0xc00132ae78 pc=0xc0e405
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).loop(0xc0000e6500)
	pkg/sentry/watchdog/watchdog.go:255 +0x3d fp=0xc00132afc8 sp=0xc00132af58 pc=0xc0dd9d
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).Start.func2()
	pkg/sentry/watchdog/watchdog.go:206 +0x26 fp=0xc00132afe0 sp=0xc00132afc8 pc=0xc0d886
runtime.goexit()
	src/runtime/asm_amd64.s:1571 +0x1 fp=0xc00132afe8 sp=0xc00132afe0 pc=0x4695c1
created by gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).Start
	pkg/sentry/watchdog/watchdog.go:206 +0x1e5

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/11/14 17:50 gvisor 4b63ff222d43 943f4cb8 .config console log report info ci-gvisor-kvm-cover kvm: panic: Sentry detected stuck tasks
2022/10/28 17:25 gvisor a1468b7a6240 8168b69e .config console log report info ci-gvisor-kvm-cover kvm: panic: Sentry detected stuck tasks
2022/10/28 03:45 gvisor 32e4a28deaaf 5c716ff6 .config console log report info ci-gvisor-kvm kvm: panic: Sentry detected stuck tasks
* Struck through repros no longer work on HEAD.