syzbot

 sign-in | mailing list | source | docs
🐞 Open [7]
🐞 Fixed [547]
🐞 Invalid [412]
≡ Crashes
Kernel Health Bugs/Month Bug Lifetimes Fuzzing
💬 Send us feedback

panic: Sentry detected stuck tasks (2)

Status: fixed on 2020/11/13 09:22
Fix commit: db36d948fa63 TCP Receive window advertisement fixes.
First crash: 1846d, last: 1805d
▶ ▼ Similar bugs (29)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
gvisor panic: Sentry detected stuck tasks (16) 2 5 1232d 1305d 14/26 fixed on 2022/06/10 10:13
gvisor panic: Sentry detected stuck tasks (9) 2 9 1700d 1701d 14/26 fixed on 2021/02/26 03:02
gvisor panic: Sentry detected stuck tasks (14) 2 20 1421d 1467d 14/26 fixed on 2021/12/02 12:02
gvisor panic: Sentry detected stuck tasks (17) 2 C 822 888d 1154d 26/26 fixed on 2023/05/19 14:28
gvisor panic: Sentry detected stuck tasks (12) 2 2 1498d 1498d 14/26 fixed on 2021/09/17 01:50
gvisor panic: Sentry detected stuck tasks (20) 2 C 895 797d 799d 26/26 fixed on 2023/08/19 00:55
gvisor panic: Sentry detected stuck tasks 2 C 506 1846d 1866d 0/26 fixed on 2020/10/03 12:41
gvisor panic: Sentry detected stuck tasks (6) 2 syz 714 1735d 1786d 14/26 fixed on 2021/01/22 19:49
gvisor panic: Sentry detected stuck tasks (7) 2 syz 2567 1703d 1734d 14/26 fixed on 2021/02/23 13:36
gvisor panic: Sentry detected stuck tasks (4) 2 C 5 1800d 1801d 0/26 fixed on 2020/11/18 07:03
gvisor panic: Sentry detected stuck tasks (22) 2 5 747d 748d 26/26 fixed on 2023/10/07 05:04
gvisor panic: Sentry detected stuck tasks (8) 2 C 64 1701d 1703d 14/26 fixed on 2021/02/25 13:46
gvisor panic: Sentry detected stuck tasks (13) 2 1 1497d 1497d 14/26 fixed on 2021/09/27 21:02
gvisor panic: Sentry detected stuck tasks (10) 2 C 264 1648d 1700d 14/26 fixed on 2021/04/20 00:15
gvisor panic: Sentry detected stuck tasks (26) 2 C 17 316d 317d 26/26 fixed on 2024/12/11 10:55
gvisor panic: Sentry detected stuck tasks (11) 2 C 31 1514d 1641d 14/26 fixed on 2021/09/03 10:11
gvisor panic: Sentry detected stuck tasks (3) 2 C 180 1801d 1805d 0/26 fixed on 2020/11/17 10:52
gvisor panic: Sentry detected stuck tasks (31) 2 3 36d 77d 26/26 fixed on 2025/09/19 06:07
gvisor panic: Sentry detected stuck tasks (28) 2 C 11282 182d 285d 26/26 fixed on 2025/04/24 21:44
gvisor panic: Sentry detected stuck tasks (21) 2 64 748d 796d 26/26 fixed on 2023/10/05 23:05
gvisor panic: Sentry detected stuck tasks (5) 2 syz 83 1787d 1800d 0/26 fixed on 2020/12/01 11:18
gvisor panic: Sentry detected stuck tasks (27) 2 C 14 293d 313d 26/26 fixed on 2025/01/07 21:12
gvisor panic: Sentry detected stuck tasks (32) 2 3 15d 21d 13/26 internal: reported on 2025/10/02 17:05
gvisor panic: Sentry detected stuck tasks (15) 2 C 2582 1341d 1418d 14/26 fixed on 2022/02/25 14:00
gvisor panic: Sentry detected stuck tasks (25) 2 C 78 318d 347d 26/26 fixed on 2024/12/09 18:01
gvisor panic: Sentry detected stuck tasks (29) 2 C 51 177d 181d 26/26 fixed on 2025/04/30 13:05
gvisor panic: Sentry detected stuck tasks (24) 2 C 13 735d 741d 26/26 fixed on 2023/10/19 08:45
gvisor panic: Sentry detected stuck tasks (23) 2 C 23 742d 747d 26/26 fixed on 2023/10/12 20:28
gvisor panic: Sentry detected stuck tasks (18) 2 C 625 829d 888d 26/26 fixed on 2023/07/19 00:35

Sample crash report:
panic: Sentry detected 1 stuck task(s):
	Task tid: 27 (0x1b), entered RunSys state 3m8.79s ago.
Search for '(*Task).run(0x..., 0x<tid>)' in the stack dump to find the offending goroutine
Stack for running G's are skipped while panicking.

goroutine 171 [running]:
panic(0xf21be0, 0xc00020a370)
	GOROOT/src/runtime/panic.go:1064 +0x46d fp=0xc00069dc08 sp=0xc00069db50 pc=0x43438d
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).doAction(0xc000162080, 0x1, 0x1, 0xc00069dd70)
	pkg/sentry/watchdog/watchdog.go:386 +0x57d fp=0xc00069dd00 sp=0xc00069dc08 pc=0xad212d
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).report(0xc000162080, 0xc0002d6000, 0x1d601, 0x1196f1d4780)
	pkg/sentry/watchdog/watchdog.go:345 +0x311 fp=0xc00069de38 sp=0xc00069dd00 pc=0xad1af1
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).runTurn(0xc000162080)
	pkg/sentry/watchdog/watchdog.go:326 +0x4b4 fp=0xc00069df40 sp=0xc00069de38 pc=0xad1704
gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).loop(0xc000162080)
	pkg/sentry/watchdog/watchdog.go:261 +0x42 fp=0xc00069dfd8 sp=0xc00069df40 pc=0xad1172
runtime.goexit()
	src/runtime/asm_amd64.s:1373 +0x1 fp=0xc00069dfe0 sp=0xc00069dfd8 pc=0x467da1
created by gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).Start
	pkg/sentry/watchdog/watchdog.go:212 +0x1b7

Crashes (951):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/10/04 12:32 gvisor e0aaf40e3970 1a3f9408 .config console log report syz C ci-gvisor-main
2020/11/13 09:05 gvisor a47d38495e7e 16fca0c8 .config console log report info ci-gvisor-main
2020/11/13 08:04 gvisor a47d38495e7e 16fca0c8 .config console log report info ci-gvisor-main
2020/11/13 06:15 gvisor a47d38495e7e 16fca0c8 .config console log report info ci-gvisor-main
2020/11/13 04:55 gvisor a47d38495e7e 16fca0c8 .config console log report info ci-gvisor-main
2020/11/13 01:06 gvisor a47d38495e7e 16fca0c8 .config console log report info ci-gvisor-main
2020/11/12 21:59 gvisor ac62743e380c 77a55c8e .config console log report info ci-gvisor-main
2020/11/12 20:51 gvisor ac62743e380c 77a55c8e .config console log report info ci-gvisor-main
2020/11/12 19:11 gvisor ac62743e380c 77a55c8e .config console log report info ci-gvisor-main
2020/11/12 18:34 gvisor ac62743e380c 77a55c8e .config console log report info ci-gvisor-main
2020/11/12 13:44 gvisor ac62743e380c 77a55c8e .config console log report info ci-gvisor-main
2020/11/12 09:00 gvisor 9c4102896d8f 64069d48 .config console log report info ci-gvisor-main
2020/11/12 07:57 gvisor 9c4102896d8f 64069d48 .config console log report info ci-gvisor-main
2020/11/12 06:21 gvisor 9c4102896d8f 64069d48 .config console log report info ci-gvisor-main
2020/11/12 05:19 gvisor 9c4102896d8f 64069d48 .config console log report info ci-gvisor-main
2020/11/12 03:35 gvisor 9c4102896d8f 64069d48 .config console log report info ci-gvisor-main
2020/11/12 02:17 gvisor 9c4102896d8f 64069d48 .config console log report info ci-gvisor-main
2020/11/11 21:04 gvisor 792cbc06de41 64069d48 .config console log report info ci-gvisor-main
2020/11/11 19:07 gvisor 792cbc06de41 64069d48 .config console log report info ci-gvisor-main
2020/11/11 16:28 gvisor 792cbc06de41 64069d48 .config console log report info ci-gvisor-main
2020/11/11 14:30 gvisor 792cbc06de41 64069d48 .config console log report info ci-gvisor-main
2020/11/11 12:46 gvisor 792cbc06de41 64069d48 .config console log report info ci-gvisor-main
2020/11/11 11:22 gvisor 792cbc06de41 64069d48 .config console log report info ci-gvisor-main
2020/11/11 07:02 gvisor e998b9904f35 64069d48 .config console log report info ci-gvisor-main
2020/11/11 04:54 gvisor e998b9904f35 64069d48 .config console log report info ci-gvisor-main
2020/11/11 03:35 gvisor e998b9904f35 64069d48 .config console log report info ci-gvisor-main
2020/11/10 23:14 gvisor e998b9904f35 64069d48 .config console log report info ci-gvisor-main
2020/11/10 23:12 gvisor e998b9904f35 64069d48 .config console log report info ci-gvisor-main
2020/11/10 21:40 gvisor e998b9904f35 64069d48 .config console log report info ci-gvisor-main
2020/11/10 17:34 gvisor b2d5b71ecdf7 64069d48 .config console log report info ci-gvisor-main
2020/11/10 15:07 gvisor b2d5b71ecdf7 64069d48 .config console log report info ci-gvisor-main
2020/11/10 13:42 gvisor b2d5b71ecdf7 64069d48 .config console log report info ci-gvisor-main
2020/11/10 12:18 gvisor b2d5b71ecdf7 64069d48 .config console log report info ci-gvisor-main
2020/11/10 11:08 gvisor b2d5b71ecdf7 64069d48 .config console log report info ci-gvisor-main
2020/11/10 02:11 gvisor 0fb5353e45f1 64069d48 .config console log report info ci-gvisor-main
2020/11/10 00:33 gvisor 0fb5353e45f1 64069d48 .config console log report info ci-gvisor-main
2020/11/09 22:40 gvisor 0fb5353e45f1 64069d48 .config console log report info ci-gvisor-main
2020/11/09 20:31 gvisor 0fb5353e45f1 64069d48 .config console log report info ci-gvisor-main
2020/11/09 13:18 gvisor 78cce3a46b95 64069d48 .config console log report info ci-gvisor-main
2020/11/09 10:26 gvisor 78cce3a46b95 64069d48 .config console log report info ci-gvisor-main
2020/11/09 05:25 gvisor 78cce3a46b95 64069d48 .config console log report info ci-gvisor-main
2020/11/09 04:05 gvisor 78cce3a46b95 64069d48 .config console log report info ci-gvisor-main
2020/11/01 11:32 gvisor df88f223bb54 8bc4594f .config console log report info ci-gvisor-ptrace-direct-overlay-host
2020/10/09 12:42 gvisor 07b1d7413e8b fa79ed2a .config console log report info ci-gvisor-kvm-proxy-overlay-sandbox
2020/10/09 03:57 gvisor e0aaf40e3970 1880b4a9 .config console log report info ci-gvisor-kvm-direct-sandbox
2020/10/07 13:39 gvisor 95cac27d0d1c 1880b4a9 .config console log report info ci-gvisor-ptrace-direct-overlay-host-race
2020/10/07 04:04 gvisor 99bf022c2aef 1880b4a9 .config console log report info ci-gvisor-ptrace-proxy-sandbox-race
2020/10/03 14:32 gvisor 55f835d1fdd0 ca27b3bc .config console log report info ci-gvisor-ptrace-direct-overlay-host-race
* Struck through repros no longer work on HEAD.