syzbot


BUG: workqueue lockup

Status: upstream: reported C repro on 2023/07/23 17:25
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+64286f251ae123d869a5@syzkaller.appspotmail.com
First crash: 400d, last: 1h18m
Cause bisection: failed (error log, bisect log)
  
Bug presence (2)
Date Name Commit Repro Result
2023/09/10 lts (merge base) b1644a0031cf C [report] BUG: workqueue lockup
2023/09/10 upstream (ToT) 1548b060d6f3 C [report] BUG: workqueue lockup
Similar bugs (14)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: workqueue lockup (4) block C 47 1677d 2084d 15/27 fixed on 2019/12/13 00:31
linux-5.15 BUG: workqueue lockup origin:upstream C 225 1d19h 468d 0/3 upstream: reported C repro on 2023/03/11 08:51
android-5-15 BUG: workqueue lockup origin:upstream missing-backport C error 789 3h09m 364d 0/2 upstream: reported C repro on 2023/06/22 22:19
upstream BUG: workqueue lockup (2) C 406 2234d 2392d 5/27 fixed on 2018/05/13 10:02
linux-4.14 BUG: workqueue lockup C 282 478d 1880d 0/1 upstream: reported C repro on 2019/04/29 11:26
upstream BUG: workqueue lockup C 172 2414d 2425d 3/27 fixed on 2017/11/11 01:37
upstream BUG: workqueue lockup (5) kernfs C done 4611 now 1619d 0/27 upstream: reported C repro on 2020/01/14 22:04
android-5-10 BUG: workqueue lockup (2) C error 1598 3h07m 473d 0/2 upstream: reported C repro on 2023/03/05 21:10
upstream BUG: workqueue lockup (3) C 1215 2178d 2230d 8/27 fixed on 2018/07/09 18:05
android-414 BUG: workqueue lockup C 114 1743d 1898d 0/1 public: reported C repro on 2019/04/11 00:00
linux-4.19 BUG: workqueue lockup C error 41 472d 1886d 0/1 upstream: reported C repro on 2019/04/22 20:37
android-5-10 BUG: workqueue lockup C error 25 872d 971d 0/2 closed as invalid on 2022/02/22 17:18
android-49 BUG: workqueue lockup C 69 1666d 1898d 0/3 public: reported C repro on 2019/04/11 08:44
linux-6.1 BUG: workqueue lockup origin:upstream C 145 8d09h 472d 0/3 upstream: reported C repro on 2023/03/07 17:51
Last patch testing requests (5)
Created Duration User Patch Repo Result
2024/03/27 14:22 16m retest repro android14-6.1 log
2024/03/27 14:22 13m retest repro android14-6.1 report log
2024/03/27 14:22 12m retest repro android14-6.1 report log
2024/03/27 14:22 12m retest repro android14-6.1 report log
2024/03/27 14:22 9m retest repro android14-6.1 report log

Sample crash report:
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 235s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: psi_avgs_work
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: vmstat_shepherd
workqueue events_unbound: flags=0x2
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4
    pending: toggle_allocation_gate, flush_memcg_stats_dwork
workqueue events_power_efficient: flags=0x80
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: neigh_managed_work, neigh_periodic_work, gc_worker
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: neigh_managed_work, neigh_periodic_work, check_lifetime
workqueue mm_percpu_wq: flags=0x8
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: vmstat_update
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: vmstat_update
workqueue dm_bufio_cache: flags=0x8
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: work_fn
workqueue ipv6_addrconf: flags=0x40008
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
    pending: addrconf_verify_work

Crashes (941):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/08 19:12 android14-6.1 ac9706483e98 82c05ab8 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/03 00:28 android14-6.1 74c507aab139 3113787f .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/27 03:21 android14-6.1 68c821783c76 a10a183e .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/27 00:12 android14-6.1 68c821783c76 a10a183e .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/25 05:55 android14-6.1 68c821783c76 a10a183e .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/24 14:37 android14-6.1 0a5aada71cc9 8f98448e .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/24 05:59 android14-6.1 0a5aada71cc9 8f98448e .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/23 05:02 android14-6.1 0a5aada71cc9 4d098039 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/22 16:31 android14-6.1 0a5aada71cc9 4d098039 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/21 17:18 android14-6.1 34a15d350726 4c0d3ee3 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/21 06:40 android14-6.1 34a15d350726 c0f1611a .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/19 03:42 android14-6.1 4ed706c20a76 c0f1611a .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/18 07:26 android14-6.1 51c421385e7a c0f1611a .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/17 21:54 android14-6.1 a9dca663a7f2 a12e99e7 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/17 19:03 android14-6.1 a9dca663a7f2 a12e99e7 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/17 00:57 android14-6.1 6a3d68af9ce6 c2e07261 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/13 04:41 android14-6.1 4d55129aea65 9026e142 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/12 13:03 android14-6.1 4d55129aea65 9026e142 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/11 19:17 android14-6.1 4d55129aea65 9026e142 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/11 14:26 android14-6.1 4d55129aea65 9026e142 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/10 07:19 android14-6.1 cf685d2b0273 de979bc2 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/09 20:51 android14-6.1 cf685d2b0273 05079661 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/09 18:15 android14-6.1 cf685d2b0273 05079661 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/09 00:48 android14-6.1 fae94bc4e7ae 20bf80e1 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/08 09:31 android14-6.1 d5e04556d434 4cf3f9b3 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/08 05:54 android14-6.1 d5e04556d434 4cf3f9b3 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/08 00:11 android14-6.1 d5e04556d434 cb2dcc0e .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/06 03:41 android14-6.1 1794308d463f 610f2a54 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/05 03:15 android14-6.1 1794308d463f 610f2a54 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/04 13:02 android14-6.1 1794308d463f 610f2a54 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/04 10:03 android14-6.1 1794308d463f 610f2a54 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/04 06:23 android14-6.1 1794308d463f 610f2a54 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/03 17:15 android14-6.1 1794308d463f dd26401e .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/03/02 15:47 android14-6.1 09ca5740fbbe 25905f5d .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/02/29 11:00 android14-6.1 4289e1348ea3 352ab904 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/02/29 06:14 android14-6.1 4289e1348ea3 352ab904 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/02/28 18:49 android14-6.1 26d7216e1dd5 55d6f11d .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/02/23 19:18 android14-6.1 8c0f9174731d 8d446f15 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/10/08 06:01 android14-6.1 1fe248991f96 5e837c76 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/09/17 10:26 android14-6.1 d3212c2dbaba 0b6a67ac .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/09/14 04:35 android14-6.1 c2ac612610e0 0b6a67ac .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/09/10 19:15 android14-6.1 cd94fe67fd33 6654cf89 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/08/27 05:27 android14-6.1 5ef132d5643b 7ba13a15 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/07/23 17:17 android14-6.1 d51e21b39415 27cbe77f .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/21 19:27 android14-6.1 34a15d350726 4c0d3ee3 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/14 19:32 android14-6.1 47dfe41d57ca fdb4c10c .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/14 15:55 android14-6.1 47dfe41d57ca fdb4c10c .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/13 14:03 android14-6.1 4d55129aea65 9026e142 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/12 20:25 android14-6.1 4d55129aea65 9026e142 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/11 05:15 android14-6.1 4d55129aea65 f7c35481 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/05/10 19:49 android14-6.1 4d55129aea65 f7c35481 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/21 18:09 android14-6.1 1a72e2f692ac edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/21 18:02 android14-6.1 1a72e2f692ac edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/21 15:56 android14-6.1 1a72e2f692ac edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/21 14:55 android14-6.1 1a72e2f692ac dac2aa43 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2024/06/21 06:13 android14-6.1 cd89d4fa0722 dac2aa43 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/21 00:53 android14-6.1 cd89d4fa0722 dac2aa43 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/20 22:57 android14-6.1 cd89d4fa0722 dac2aa43 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/20 21:09 android14-6.1 cd89d4fa0722 dac2aa43 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/20 20:15 android14-6.1 cd89d4fa0722 dac2aa43 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/20 19:53 android14-6.1 cd89d4fa0722 dac2aa43 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/20 10:01 android14-6.1 cd89d4fa0722 41b7e219 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/20 06:23 android14-6.1 cd89d4fa0722 41b7e219 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/20 01:44 android14-6.1 cd89d4fa0722 41b7e219 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/20 00:12 android14-6.1 cd89d4fa0722 41b7e219 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/19 20:56 android14-6.1 f9840ee56298 41b7e219 .config console log report info [disk image] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/19 12:56 android14-6.1 f9840ee56298 41b7e219 .config console log report info [disk image] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/19 11:43 android14-6.1 f9840ee56298 41b7e219 .config console log report info [disk image] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/19 10:31 android14-6.1 f9840ee56298 41b7e219 .config console log report info [disk image] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/19 09:48 android14-6.1 12709c5c1ed2 41b7e219 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/19 03:22 android14-6.1 12709c5c1ed2 41b7e219 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/18 22:56 android14-6.1 12709c5c1ed2 639d6cdf .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/18 21:20 android14-6.1 12709c5c1ed2 639d6cdf .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/18 19:56 android14-6.1 12709c5c1ed2 639d6cdf .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/18 14:38 android14-6.1 bda57805ab9f 639d6cdf .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/18 12:52 android14-6.1 bda57805ab9f 639d6cdf .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/18 11:32 android14-6.1 bda57805ab9f 639d6cdf .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/18 10:46 android14-6.1 bda57805ab9f ce6011bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/18 09:35 android14-6.1 bda57805ab9f ce6011bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/18 08:28 android14-6.1 bda57805ab9f ce6011bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2024/06/18 07:21 android14-6.1 bda57805ab9f ce6011bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/18 05:19 android14-6.1 bda57805ab9f ce6011bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/18 03:36 android14-6.1 bda57805ab9f ce6011bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/18 02:27 android14-6.1 bda57805ab9f ce6011bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/18 01:58 android14-6.1 bda57805ab9f ce6011bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/17 23:57 android14-6.1 de6fb073c606 1f11cfd7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/17 22:36 android14-6.1 de6fb073c606 1f11cfd7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/17 21:31 android14-6.1 de6fb073c606 1f11cfd7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/17 20:03 android14-6.1 de6fb073c606 1f11cfd7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/17 18:41 android14-6.1 de6fb073c606 1f11cfd7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/17 15:38 android14-6.1 c0618d182a9c 1f11cfd7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/17 11:33 android14-6.1 c0618d182a9c 1f11cfd7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/17 11:28 android14-6.1 c0618d182a9c 1f11cfd7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/06/17 09:48 android14-6.1 c0618d182a9c 88722c0f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/07/05 20:16 android14-6.1 f63b2625af7c ba5dba36 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
* Struck through repros no longer work on HEAD.