kvm: panic: Sentry detected stuck tasks (30)

Status: internal: reported C repro on 2026/03/08 10:51
Fix commit: 6a24f67cce95 Set clone propagation to MS_PRIVATE upon BindAt failure.
Patched on: [], missing on: [ci-gvisor-arm64-ptrace-1 ci-gvisor-arm64-ptrace-1-cover ci-gvisor-arm64-ptrace-1-race ci-gvisor-arm64-ptrace-1-race-cover ci-gvisor-arm64-systrap-1 ci-gvisor-arm64-systrap-1-cover ci-gvisor-arm64-systrap-1-race ci-gvisor-arm64-systrap-1-race-cover ci-gvisor-kvm ci-gvisor-kvm-cover ci-gvisor-ptrace-1 ci-gvisor-ptrace-1-cover ci-gvisor-ptrace-1-race ci-gvisor-ptrace-1-race-cover ci-gvisor-ptrace-2 ci-gvisor-ptrace-2-cover ci-gvisor-ptrace-2-race ci-gvisor-ptrace-2-race-cover ci-gvisor-ptrace-3 ci-gvisor-ptrace-3-cover ci-gvisor-ptrace-3-race ci-gvisor-ptrace-3-race-cover ci-gvisor-systrap-1 ci-gvisor-systrap-1-cover ci-gvisor-systrap-1-race ci-gvisor-systrap-1-race-cover]
First crash: 174d, last: 137d
▶ ▼ Similar bugs (27)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
gvisor kvm: panic: Sentry detected stuck tasks (2) -1 syz, C 66 1806d 1969d 14/26 fixed on 2021/09/25 08:25
gvisor kvm: panic: Sentry detected stuck tasks (26) -1 syz, C 3 491d 491d 0/26 closed as invalid on 2025/04/25 22:43
gvisor kvm: panic: Sentry detected stuck tasks (7) -1 1 1561d 1554d 14/26 fixed on 2022/06/09 21:04
gvisor kvm: panic: Sentry detected stuck tasks (19) -1 3 1020d 1018d 26/26 fixed on 2023/11/15 20:33
gvisor kvm: panic: Sentry detected stuck tasks (23) -1 1 893d 893d 0/26 auto-obsoleted due to no activity on 2024/06/25 13:36
gvisor kvm: panic: Sentry detected stuck tasks -1 syz, C 152 1984d 2000d 14/26 fixed on 2021/03/24 13:21
gvisor kvm: panic: Sentry detected stuck tasks (24) -1 syz, C 9 627d 670d 26/26 fixed on 2024/12/11 10:55
gvisor kvm: panic: Sentry detected stuck tasks (6) -1 15 1642d 1653d 14/26 fixed on 2022/03/01 23:36
gvisor kvm: panic: Sentry detected stuck tasks (18) -1 syz, C 3 1032d 1037d 26/26 fixed on 2023/11/03 12:12
gvisor kvm: panic: Sentry detected stuck tasks (4) -1 syz, C 627 1723d 1750d 14/26 fixed on 2021/12/10 13:30
gvisor kvm: panic: Sentry detected stuck tasks (27) -1 syz, C 5 488d 490d 26/26 fixed on 2025/05/02 08:36
gvisor kvm: panic: Sentry detected stuck tasks (10) -1 3 1384d 1401d 14/26 fixed on 2022/11/30 11:09
gvisor kvm: panic: Sentry detected stuck tasks (22) -1 syz, C 8 998d 1009d 26/26 fixed on 2023/12/12 09:56
gvisor kvm: panic: Sentry detected stuck tasks (8) -1 1 1479d 1479d 0/26 closed as invalid on 2022/08/11 16:05
gvisor kvm: panic: Sentry detected stuck tasks (11) -1 1 1365d 1365d 0/26 closed as invalid on 2022/12/05 18:51
gvisor kvm: panic: Sentry detected stuck tasks (21) -1 syz, C 2 1013d 1015d 26/26 fixed on 2023/11/21 23:47
gvisor kvm: panic: Sentry detected stuck tasks (15) -1 syz, C 186 1107d 1110d 26/26 fixed on 2023/08/19 00:49
gvisor kvm: panic: Sentry detected stuck tasks (28) -1 syz, C 11 439d 444d 26/26 fixed on 2025/07/10 09:16
gvisor kvm: panic: Sentry detected stuck tasks (20) -1 syz, C 2 1017d 1017d 26/26 fixed on 2023/11/17 11:27
gvisor kvm: panic: Sentry detected stuck tasks (29) -1 syz, C 3 285d 286d 26/26 fixed on 2025/11/19 02:01
gvisor kvm: panic: Sentry detected stuck tasks (5) -1 syz, C 65 1654d 1716d 14/26 fixed on 2022/02/18 08:00
gvisor kvm: panic: Sentry detected stuck tasks (25) -1 syz, C 3409 500d 596d 26/26 fixed on 2025/04/24 21:45
gvisor kvm: panic: Sentry detected stuck tasks (9) -1 2 1450d 1451d 14/26 fixed on 2022/09/20 07:30
gvisor kvm: panic: Sentry detected stuck tasks (3) -1 1 1768d 1768d 0/26 closed as invalid on 2021/10/27 19:47
gvisor kvm: panic: Sentry detected stuck tasks (12) -1 193 1177d 1339d 26/26 fixed on 2023/06/10 02:45
gvisor kvm: panic: Sentry detected stuck tasks (14) -1 syz 4 1122d 1128d 26/26 fixed on 2023/08/08 01:03
gvisor kvm: panic: Sentry detected stuck tasks (17) -1 14 1056d 1087d 26/26 fixed on 2023/10/09 12:22

Sample crash report:
panic: Sentry detected 3 stuck task(s):
		Task tid: 95 (goroutine 734), entered RunSys state 3m18.2s ago.
		Task tid: 98 (goroutine 996), entered RunSys state 3m3.61s ago.
		Task tid: 92 (goroutine 982), entered RunSys state 3m32.8s ago.
	Search for 'goroutine <id>' in the stack dump to find the offending goroutine(s)
	Stack for running G's are skipped while panicking.

Crashes (15):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/04/14 22:11 gvisor 58b37effb58e 362d1323 .config console log report syz / log C ci-gvisor-kvm-cover kvm: panic: Sentry detected stuck tasks
2026/03/09 09:52 gvisor 527012b63ce4 5cb44a80 .config console log report syz / log ci-gvisor-kvm-cover kvm: panic: Sentry detected stuck tasks
2026/03/09 04:56 gvisor 527012b63ce4 5cb44a80 console log report syz / log ci-gvisor-kvm kvm: panic: Sentry detected stuck tasks
2026/03/09 02:06 gvisor 527012b63ce4 5cb44a80 .config console log report syz / log ci-gvisor-kvm-cover kvm: panic: Sentry detected stuck tasks
2026/03/08 20:23 gvisor 527012b63ce4 5cb44a80 console log report syz / log ci-gvisor-kvm kvm: panic: Sentry detected stuck tasks
2026/03/08 17:37 gvisor 527012b63ce4 5cb44a80 .config console log report syz / log ci-gvisor-kvm-cover kvm: panic: Sentry detected stuck tasks
2026/03/08 17:36 gvisor 527012b63ce4 5cb44a80 .config console log report syz / log ci-gvisor-kvm-cover kvm: panic: Sentry detected stuck tasks
2026/04/14 12:25 gvisor 58b37effb58e 362d1323 .config console log report info ci-gvisor-kvm-cover kvm: panic: Sentry detected stuck tasks
2026/04/13 14:21 gvisor 7a8f93e881db 9530ccf9 console log report info ci-gvisor-kvm kvm: panic: Sentry detected stuck tasks
2026/04/13 00:13 gvisor 7a8f93e881db 38c8e246 .config console log report info ci-gvisor-kvm-cover kvm: panic: Sentry detected stuck tasks
2026/04/10 23:21 gvisor b024e9775767 38c8e246 console log report info ci-gvisor-kvm kvm: panic: Sentry detected stuck tasks
2026/04/09 01:45 gvisor 9bc8526be8df 38c8e246 console log report info ci-gvisor-kvm kvm: panic: Sentry detected stuck tasks
2026/04/07 22:43 gvisor 7eb858fdd6f5 2c961e87 console log report info ci-gvisor-kvm kvm: panic: Sentry detected stuck tasks
2026/03/09 05:20 gvisor 527012b63ce4 5cb44a80 .config console log report info ci-gvisor-kvm-cover kvm: panic: Sentry detected stuck tasks
2026/03/08 09:50 gvisor 527012b63ce4 5cb44a80 .config console log report info ci-gvisor-kvm-cover kvm: panic: Sentry detected stuck tasks
* Struck through repros no longer work on HEAD.