panic: Sentry detected stuck tasks (8)

Status: fixed on 2021/02/25 13:46
Fix commit: f5692f7dcc48 Kernfs should not try to rename a file to itself.
First crash: 2077d, last: 2075d
▶ ▼ Similar bugs (34)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
gvisor panic: Sentry detected stuck tasks (16) 2 5 1606d 1679d 14/26 fixed on 2022/06/10 10:13
gvisor panic: Sentry detected stuck tasks (9) 2 9 2075d 2075d 14/26 fixed on 2021/02/26 03:02
gvisor panic: Sentry detected stuck tasks (14) 2 20 1796d 1841d 14/26 fixed on 2021/12/02 12:02
gvisor panic: Sentry detected stuck tasks (17) 2 syz, C 822 1262d 1528d 26/26 fixed on 2023/05/19 14:28
gvisor panic: Sentry detected stuck tasks (12) 2 2 1872d 1872d 14/26 fixed on 2021/09/17 01:50
gvisor panic: Sentry detected stuck tasks (20) 2 syz, C 895 1171d 1174d 26/26 fixed on 2023/08/19 00:55
gvisor panic: Sentry detected stuck tasks 2 syz, C 506 2220d 2240d 0/26 fixed on 2020/10/03 12:41
gvisor panic: Sentry detected stuck tasks (6) 2 syz 714 2109d 2161d 14/26 fixed on 2021/01/22 19:49
gvisor panic: Sentry detected stuck tasks (7) 2 syz 2567 2077d 2109d 14/26 fixed on 2021/02/23 13:36
gvisor panic: Sentry detected stuck tasks (4) 2 syz, C 5 2175d 2175d 0/26 fixed on 2020/11/18 07:03
gvisor panic: Sentry detected stuck tasks (22) 2 5 1122d 1122d 26/26 fixed on 2023/10/07 05:04
gvisor panic: Sentry detected stuck tasks (13) 2 1 1871d 1871d 14/26 fixed on 2021/09/27 21:02
gvisor panic: Sentry detected stuck tasks (10) 2 syz, C 264 2022d 2074d 14/26 fixed on 2021/04/20 00:15
gvisor panic: Sentry detected stuck tasks (26) 2 syz, C 17 691d 692d 26/26 fixed on 2024/12/11 10:55
gvisor panic: Sentry detected stuck tasks (11) 2 syz, C 31 1888d 2015d 14/26 fixed on 2021/09/03 10:11
gvisor panic: Sentry detected stuck tasks (35) 2 syz 41 201d 254d 26/26 fixed on 2026/04/14 23:49
gvisor panic: Sentry detected stuck tasks (3) 2 syz, C 180 2175d 2179d 0/26 fixed on 2020/11/17 10:52
gvisor panic: Sentry detected stuck tasks (31) 2 3 410d 452d 26/26 fixed on 2025/09/19 06:07
gvisor panic: Sentry detected stuck tasks (28) 2 syz, C 11282 556d 660d 26/26 fixed on 2025/04/24 21:44
gvisor panic: Sentry detected stuck tasks (21) 2 64 1123d 1170d 26/26 fixed on 2023/10/05 23:05
gvisor panic: Sentry detected stuck tasks (2) 2 syz, C 951 2179d 2220d 0/26 fixed on 2020/11/13 09:22
gvisor panic: Sentry detected stuck tasks (5) 2 syz 83 2161d 2174d 0/26 fixed on 2020/12/01 11:18
gvisor panic: Sentry detected stuck tasks (33) 2 syz, C 13 348d 350d 26/26 fixed on 2025/11/19 02:01
gvisor panic: Sentry detected stuck tasks (37) 2 11 3d20h 16d 0/26 moderation: reported on 2026/10/17 00:44
gvisor panic: Sentry detected stuck tasks (27) 2 syz, C 14 667d 688d 26/26 fixed on 2025/01/07 21:12
gvisor panic: Sentry detected stuck tasks (32) 2 5 356d 395d 26/26 fixed on 2025/11/12 21:14
gvisor panic: Sentry detected stuck tasks (36) 2 8 46d 69d 26/26 fixed on 2026/09/18 11:33
gvisor panic: Sentry detected stuck tasks (15) 2 syz, C 2582 1715d 1793d 14/26 fixed on 2022/02/25 14:00
gvisor panic: Sentry detected stuck tasks (34) 2 2 291d 298d 26/26 fixed on 2026/01/14 10:50
gvisor panic: Sentry detected stuck tasks (25) 2 syz, C 78 692d 721d 26/26 fixed on 2024/12/09 18:01
gvisor panic: Sentry detected stuck tasks (29) 2 syz, C 51 551d 555d 26/26 fixed on 2025/04/30 13:05
gvisor panic: Sentry detected stuck tasks (24) 2 syz, C 13 1109d 1116d 26/26 fixed on 2023/10/19 08:45
gvisor panic: Sentry detected stuck tasks (23) 2 syz, C 23 1116d 1121d 26/26 fixed on 2023/10/12 20:28
gvisor panic: Sentry detected stuck tasks (18) 2 syz, C 625 1203d 1262d 26/26 fixed on 2023/07/19 00:35

Sample crash report:
panic: Sentry detected 1 stuck task(s):
	Task tid: 14 (goroutine 822), entered RunSys state 3m35.72s 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 227 [running]:
panic(0x1711780, 0xc0002fbb60)
	GOROOT/src/runtime/panic.go:1064 +0x545 fp=0xc0005a9b58 sp=0xc0005a9a90 pc=0x439ae5
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).doAction(0xc00023a180, 0x1, 0x1, 0xc0005a9d18)
	pkg/sentry/watchdog/watchdog.go:385 +0x745 fp=0xc0005a9c88 sp=0xc0005a9b58 pc=0x103fe45
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).report(0xc00023a180, 0xc0002fffb0, 0xa301, 0x689405b200)
	pkg/sentry/watchdog/watchdog.go:344 +0x40f fp=0xc0005a9de0 sp=0xc0005a9c88 pc=0x103f60f
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).runTurn(0xc00023a180)
	pkg/sentry/watchdog/watchdog.go:326 +0x79e fp=0xc0005a9f30 sp=0xc0005a9de0 pc=0x103f0de
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).loop(0xc00023a180)
	pkg/sentry/watchdog/watchdog.go:261 +0x58 fp=0xc0005a9fd8 sp=0xc0005a9f30 pc=0x103e7b8
runtime.goexit()
	src/runtime/asm_amd64.s:1374 +0x1 fp=0xc0005a9fe0 sp=0xc0005a9fd8 pc=0x475221
created by gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).Start
	pkg/sentry/watchdog/watchdog.go:212 +0x354

Crashes (64):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/02/23 23:41 gvisor 24ea8003a49d fcc6d71b .config console log report syz C ci-gvisor-ptrace-1-race panic: Sentry detected stuck tasks
2021/02/23 23:41 gvisor 24ea8003a49d fcc6d71b .config console log report syz C ci-gvisor-ptrace-2 panic: Sentry detected stuck tasks
2021/02/23 23:41 gvisor 24ea8003a49d fcc6d71b .config console log report syz C ci-gvisor-ptrace-1 panic: Sentry detected stuck tasks
2021/02/23 23:35 gvisor 24ea8003a49d fcc6d71b .config console log report syz C ci-gvisor-ptrace-3-race panic: Sentry detected stuck tasks
2021/02/23 23:34 gvisor 24ea8003a49d fcc6d71b .config console log report syz C ci-gvisor-ptrace-3 panic: Sentry detected stuck tasks
2021/02/23 23:34 gvisor 24ea8003a49d fcc6d71b .config console log report syz C ci-gvisor-ptrace-3-cover panic: Sentry detected stuck tasks
2021/02/23 23:33 gvisor 24ea8003a49d fcc6d71b .config console log report syz C ci-gvisor-ptrace-2-race panic: Sentry detected stuck tasks
2021/02/23 23:32 gvisor 24ea8003a49d fcc6d71b .config console log report syz C ci-gvisor-ptrace-2-cover panic: Sentry detected stuck tasks
2021/02/23 23:29 gvisor 24ea8003a49d fcc6d71b .config console log report syz C ci-gvisor-ptrace-1-cover panic: Sentry detected stuck tasks
2021/02/23 21:14 gvisor 24ea8003a49d fcc6d71b .config console log report syz C ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/25 12:50 gvisor f5692f7dcc48 fcc6d71b .config console log report info ci-gvisor-kvm panic: Sentry detected stuck tasks
2021/02/25 09:49 gvisor 303c913c5e0e fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/25 08:54 gvisor 303c913c5e0e fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/25 07:41 gvisor 303c913c5e0e fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/25 06:24 gvisor 303c913c5e0e fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/25 04:35 gvisor 303c913c5e0e fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/25 02:11 gvisor 303c913c5e0e fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/24 23:18 gvisor 6e000d3424c0 fcc6d71b .config console log report info ci-gvisor-kvm panic: Sentry detected stuck tasks
2021/02/24 22:03 gvisor 6e000d3424c0 fcc6d71b .config console log report info ci-gvisor-kvm panic: Sentry detected stuck tasks
2021/02/24 20:33 gvisor 6e000d3424c0 fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/24 18:55 gvisor 6e000d3424c0 fcc6d71b .config console log report info ci-gvisor-ptrace-1-race-cover panic: Sentry detected stuck tasks
2021/02/24 17:28 gvisor 6e000d3424c0 fcc6d71b .config console log report info ci-gvisor-kvm panic: Sentry detected stuck tasks
2021/02/24 15:39 gvisor 6e000d3424c0 fcc6d71b .config console log report info ci-gvisor-ptrace-1-race-cover panic: Sentry detected stuck tasks
2021/02/24 13:23 gvisor 6e000d3424c0 fcc6d71b .config console log report info ci-gvisor-kvm panic: Sentry detected stuck tasks
2021/02/24 11:35 gvisor 6e000d3424c0 fcc6d71b .config console log report info ci-gvisor-ptrace-1-race-cover panic: Sentry detected stuck tasks
2021/02/24 11:31 gvisor 6e000d3424c0 fcc6d71b .config console log report info ci-gvisor-kvm panic: Sentry detected stuck tasks
2021/02/24 10:35 gvisor 6e000d3424c0 fcc6d71b .config console log report info ci-gvisor-kvm panic: Sentry detected stuck tasks
2021/02/24 08:52 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/24 07:58 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm panic: Sentry detected stuck tasks
2021/02/24 07:37 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm panic: Sentry detected stuck tasks
2021/02/24 07:04 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/24 06:42 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/24 05:37 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm panic: Sentry detected stuck tasks
2021/02/24 04:48 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm panic: Sentry detected stuck tasks
2021/02/24 04:48 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/24 04:36 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm panic: Sentry detected stuck tasks
2021/02/24 03:41 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/24 03:40 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/24 02:54 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-ptrace-1-race-cover panic: Sentry detected stuck tasks
2021/02/24 02:34 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/24 00:09 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/23 23:39 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/23 23:11 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/23 20:51 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm panic: Sentry detected stuck tasks
2021/02/23 19:39 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-ptrace-3-cover panic: Sentry detected stuck tasks
2021/02/23 19:23 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/23 18:19 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-ptrace-1-cover panic: Sentry detected stuck tasks
2021/02/23 18:03 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/23 18:03 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-ptrace-1-race-cover panic: Sentry detected stuck tasks
2021/02/23 17:38 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
2021/02/23 17:30 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm panic: Sentry detected stuck tasks
2021/02/23 17:23 gvisor 24ea8003a49d fcc6d71b .config console log report info ci-gvisor-kvm-cover panic: Sentry detected stuck tasks
* Struck through repros no longer work on HEAD.