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panic: Sentry detected stuck tasks (22)

Status: fixed on 2023/10/07 05:04
Fix commit: 44e0d6d07246 Unlock putOldMp before retrying the mount checks in pivot_root.
First crash: 417d, last: 416d
▶ ▼ Similar bugs (22)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
gvisor panic: Sentry detected stuck tasks (16) 5 901d 974d 14/26 fixed on 2022/06/10 10:13
gvisor panic: Sentry detected stuck tasks (9) 9 1369d 1369d 14/26 fixed on 2021/02/26 03:02
gvisor panic: Sentry detected stuck tasks (14) 20 1090d 1136d 14/26 fixed on 2021/12/02 12:02
gvisor panic: Sentry detected stuck tasks (17) C 822 557d 822d 26/26 fixed on 2023/05/19 14:28
gvisor panic: Sentry detected stuck tasks (12) 2 1167d 1167d 14/26 fixed on 2021/09/17 01:50
gvisor panic: Sentry detected stuck tasks (20) C 895 466d 468d 26/26 fixed on 2023/08/19 00:55
gvisor panic: Sentry detected stuck tasks C 506 1515d 1535d 0/26 fixed on 2020/10/03 12:41
gvisor panic: Sentry detected stuck tasks (6) syz 714 1403d 1455d 14/26 fixed on 2021/01/22 19:49
gvisor panic: Sentry detected stuck tasks (7) syz 2567 1372d 1403d 14/26 fixed on 2021/02/23 13:36
gvisor panic: Sentry detected stuck tasks (4) C 5 1469d 1470d 0/26 fixed on 2020/11/18 07:03
gvisor panic: Sentry detected stuck tasks (8) C 64 1370d 1371d 14/26 fixed on 2021/02/25 13:46
gvisor panic: Sentry detected stuck tasks (13) 1 1166d 1166d 14/26 fixed on 2021/09/27 21:02
gvisor panic: Sentry detected stuck tasks (10) C 264 1316d 1369d 14/26 fixed on 2021/04/20 00:15
gvisor panic: Sentry detected stuck tasks (11) C 31 1182d 1309d 14/26 fixed on 2021/09/03 10:11
gvisor panic: Sentry detected stuck tasks (3) C 180 1470d 1474d 0/26 fixed on 2020/11/17 10:52
gvisor panic: Sentry detected stuck tasks (21) 64 417d 465d 26/26 fixed on 2023/10/05 23:05
gvisor panic: Sentry detected stuck tasks (2) C 951 1474d 1515d 0/26 fixed on 2020/11/13 09:22
gvisor panic: Sentry detected stuck tasks (5) syz 83 1456d 1469d 0/26 fixed on 2020/12/01 11:18
gvisor panic: Sentry detected stuck tasks (15) C 2582 1010d 1087d 14/26 fixed on 2022/02/25 14:00
gvisor panic: Sentry detected stuck tasks (24) C 13 404d 410d 26/26 fixed on 2023/10/19 08:45
gvisor panic: Sentry detected stuck tasks (23) C 23 411d 416d 26/26 fixed on 2023/10/12 20:28
gvisor panic: Sentry detected stuck tasks (18) C 625 498d 556d 26/26 fixed on 2023/07/19 00:35

Sample crash report:
panic: Sentry detected 2 stuck task(s):
	Task tid: 21522 (goroutine 586896), entered RunSys state 3m34.35s ago.
	Task tid: 21523 (goroutine 586921), entered RunSys state 3m34.36s 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 242 [running]:
panic({0x10b1200?, 0xc018d1b2d0?})
	GOROOT/src/runtime/panic.go:1017 +0x3ac fp=0xc007f5bc90 sp=0xc007f5bbe0 pc=0x43a72c
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).doAction(0xc007f5bdb8?, 0x132dba7?, 0x50?, 0xc007f5bdb8)
	pkg/sentry/watchdog/watchdog.go:379 +0x385 fp=0xc007f5bd50 sp=0xc007f5bc90 pc=0xbe4d45
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).report(0xc00078e080, 0xc017d48750, 0x0?, {0x0?})
	pkg/sentry/watchdog/watchdog.go:338 +0x285 fp=0xc007f5be80 sp=0xc007f5bd50 pc=0xbe4905
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).runTurn(0xc00078e080)
	pkg/sentry/watchdog/watchdog.go:320 +0x585 fp=0xc007f5bf58 sp=0xc007f5be80 pc=0xbe4565
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).loop(0xc00078e080)
	pkg/sentry/watchdog/watchdog.go:255 +0x37 fp=0xc007f5bfc8 sp=0xc007f5bf58 pc=0xbe3f37
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).Start.func2()
	pkg/sentry/watchdog/watchdog.go:206 +0x25 fp=0xc007f5bfe0 sp=0xc007f5bfc8 pc=0xbe3a85
runtime.goexit()
	src/runtime/asm_amd64.s:1650 +0x1 fp=0xc007f5bfe8 sp=0xc007f5bfe0 pc=0x471241
created by gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).Start in goroutine 1
	pkg/sentry/watchdog/watchdog.go:206 +0x1ec

Crashes (5):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/10/07 02:06 gvisor 07b9077bfdcc ea12a918 .config console log report info ci-gvisor-ptrace-2-cover panic: Sentry detected stuck tasks
2023/10/06 21:50 gvisor 07b9077bfdcc ea12a918 .config console log report info ci-gvisor-ptrace-1-race-cover panic: Sentry detected stuck tasks
2023/10/06 18:38 gvisor 15cc3fcbbd77 ea12a918 .config console log report info ci-gvisor-ptrace-1-race-cover panic: Sentry detected stuck tasks
2023/10/06 15:17 gvisor 15cc3fcbbd77 db17ad9f .config console log report info ci-gvisor-ptrace-1-race-cover panic: Sentry detected stuck tasks
2023/10/06 14:24 gvisor 15cc3fcbbd77 db17ad9f .config console log report info ci-gvisor-ptrace-3-cover panic: Sentry detected stuck tasks
* Struck through repros no longer work on HEAD.