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: 290d, last: 16h13m
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 1567d 1973d 15/26 fixed on 2019/12/13 00:31
linux-5.15 BUG: workqueue lockup origin:upstream C 119 4d18h 357d 0/3 upstream: reported C repro on 2023/03/11 08:51
android-5-15 BUG: workqueue lockup origin:upstream missing-backport C error 219 2d02h 254d 0/2 upstream: reported C repro on 2023/06/22 22:19
upstream BUG: workqueue lockup (2) C 406 2123d 2281d 5/26 fixed on 2018/05/13 10:02
linux-4.14 BUG: workqueue lockup C 282 368d 1769d 0/1 upstream: reported C repro on 2019/04/29 11:26
upstream BUG: workqueue lockup C 172 2304d 2314d 3/26 fixed on 2017/11/11 01:37
upstream BUG: workqueue lockup (5) kernel C done 3559 1h43m 1509d 0/26 upstream: reported C repro on 2020/01/14 22:04
android-5-10 BUG: workqueue lockup (2) C error 322 13h39m 363d 0/2 upstream: reported C repro on 2023/03/05 21:10
upstream BUG: workqueue lockup (3) C 1215 2067d 2120d 8/26 fixed on 2018/07/09 18:05
android-414 BUG: workqueue lockup C 114 1632d 1788d 0/1 public: reported C repro on 2019/04/11 00:00
linux-4.19 BUG: workqueue lockup C error 41 362d 1776d 0/1 upstream: reported C repro on 2019/04/22 20:37
android-5-10 BUG: workqueue lockup C error 25 762d 860d 0/2 closed as invalid on 2022/02/22 17:18
android-49 BUG: workqueue lockup C 69 1556d 1787d 0/3 public: reported C repro on 2019/04/11 08:44
linux-6.1 BUG: workqueue lockup origin:upstream C 79 22h42m 361d 0/3 upstream: reported C repro on 2023/03/07 17:51
Last patch testing requests (4)
Created Duration User Patch Repo Result
2023/10/23 15:25 9m retest repro android14-6.1 report log
2023/10/23 15:25 32m retest repro android14-6.1 report log
2023/10/23 15:25 18m retest repro android14-6.1 report log
2023/10/23 15:25 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 233s!
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=6/256 refcnt=7
    pending: neigh_managed_work, neigh_managed_work, neigh_periodic_work, gc_worker, reg_check_chans_work, neigh_periodic_work
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: 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 writeback: flags=0x4a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
    pending: wb_workfn
workqueue dm_bufio_cache: flags=0x8
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: work_fn
workqueue ipv6_addrconf: flags=0x40008
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
    pending: addrconf_verify_work

Crashes (146):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
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
2024/02/23 07:25 android14-6.1 d6b58cc171f4 8d446f15 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/02/19 00:38 android14-6.1 92432f07d663 578f7538 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/02/18 03:11 android14-6.1 92432f07d663 578f7538 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/02/17 20:58 android14-6.1 92432f07d663 578f7538 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/02/17 18:14 android14-6.1 92432f07d663 578f7538 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/02/16 10:01 android14-6.1 92432f07d663 578f7538 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/25 23:16 android14-6.1 fa9ac43f1600 cc4a4020 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/22 20:18 android14-6.1 21c71a7d0e96 9bd8dcda .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/22 09:22 android14-6.1 aba5a3fe094e 9bd8dcda .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/06 23:33 android14-6.1 ac90f0829243 d0304e9c .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/06 19:32 android14-6.1 ac90f0829243 d0304e9c .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/01 18:15 android14-6.1 d3006fb9449d fb427a07 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/28 10:27 android14-6.1 401a2769d990 fb427a07 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/24 16:51 android14-6.1 401a2769d990 fb427a07 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/24 12:42 android14-6.1 401a2769d990 fb427a07 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/23 06:59 android14-6.1 401a2769d990 fb427a07 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/20 09:11 android14-6.1 07775f9683d4 3ad490ea .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/16 05:09 android14-6.1 ac1031618a7d 3222d10c .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/10 22:36 android14-6.1 ddf142e5a817 28b24332 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/10 12:18 android14-6.1 ddf142e5a817 28b24332 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/09 09:29 android14-6.1 ddf142e5a817 28b24332 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/09 07:12 android14-6.1 ddf142e5a817 28b24332 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/08 15:50 android14-6.1 c9b5c232e715 28b24332 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/08 09:36 android14-6.1 c9b5c232e715 28b24332 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/03 07:52 android14-6.1 6465e29536ed f819d6f7 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/11/25 14:16 android14-6.1 d2c0f4c4502a 5b429f39 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/11/24 19:40 android14-6.1 95307ec5c864 5b429f39 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/11/23 17:00 android14-6.1 95307ec5c864 fc59b78e .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/11/14 04:34 android14-6.1 a59b32866cd4 cb976f63 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/11/12 19:10 android14-6.1 48c6c901fe0e 6d6dbf8a .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/11/04 20:03 android14-6.1 7bec8a818066 500bfdc4 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/11/01 12:58 android14-6.1 9d38c0bc652e 69904c9f .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/11/01 00:34 android14-6.1 82fe654f5652 58499c95 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/10/31 18:48 android14-6.1 82fe654f5652 58499c95 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/10/30 11:10 android14-6.1 5418491fa533 3c418d72 .config strace 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
2023/08/26 15:45 android14-6.1 4db95aa21ae4 7ba13a15 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/08/19 13:05 android14-6.1 c2611a04b92f d216d8a0 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/08/14 16:57 android14-6.1 d7dacaa439c7 39990d51 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/08/14 14:00 android14-6.1 d7dacaa439c7 39990d51 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/08/13 12:18 android14-6.1 d7dacaa439c7 39990d51 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/08/03 17:32 android14-6.1 b283f9b41fc5 39a91c18 .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
2024/02/29 07:56 android14-6.1 4289e1348ea3 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/02/19 15:21 android14-6.1 92432f07d663 3af7dd65 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/02/14 04:36 android14-6.1 b86713e34104 d902085f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/02/03 07:35 android14-6.1 76f0396b5761 60bf9982 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/29 18:28 android14-6.1 2730733d54b6 991a98f4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/24 18:28 android14-6.1 c96cea1a3cc2 1e153dc8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/23 19:02 android14-6.1 90bd30bdefa2 1e153dc8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/22 12:29 android14-6.1 21c71a7d0e96 9bd8dcda .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/21 21:52 android14-6.1 aba5a3fe094e 9bd8dcda .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/20 05:31 android14-6.1 aba5a3fe094e 9bd8dcda .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/19 20:06 android14-6.1 947708f1ff8b 9bd8dcda .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/19 11:48 android14-6.1 cfe8cce4e8a1 21772ce4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/15 20:23 android14-6.1 66cd99ccdbea 2a7bcc7f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/15 03:14 android14-6.1 66cd99ccdbea 551587c1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/14 04:21 android14-6.1 66cd99ccdbea 551587c1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/12 17:27 android14-6.1 fd40c1d9017a 551587c1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/11 21:56 android14-6.1 82bf9e7625be dda5a988 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/11 20:25 android14-6.1 82bf9e7625be 00f3cc59 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/08 10:59 android14-6.1 ac90f0829243 d0304e9c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/05 11:27 android14-6.1 ed9b660cd1ad 28c42cff .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/04 22:06 android14-6.1 e74417834ea0 28c42cff .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/04 12:04 android14-6.1 4d99e41ce174 28c42cff .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/01/02 21:58 android14-6.1 d16a15fde575 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/30 21:52 android14-6.1 d3006fb9449d fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/29 13:44 android14-6.1 401a2769d990 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/29 09:22 android14-6.1 401a2769d990 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/28 13:38 android14-6.1 401a2769d990 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/25 12:29 android14-6.1 401a2769d990 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/22 17:24 android14-6.1 401a2769d990 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/21 04:27 android14-6.1 613d8368e39f de21eb89 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/19 09:58 android14-6.1 efa8f34b5aa8 3ad490ea .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/19 04:05 android14-6.1 efa8f34b5aa8 924661f4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/15 23:51 android14-6.1 ac1031618a7d 3222d10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/15 17:53 android14-6.1 4fa87d4d8fce 3222d10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/13 22:47 android14-6.1 d8d2b95fd0b4 3222d10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/13 21:17 android14-6.1 d8d2b95fd0b4 3222d10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/11 12:19 android14-6.1 2d8a5ddebb22 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/08 23:32 android14-6.1 ddf142e5a817 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/08 21:54 android14-6.1 ddf142e5a817 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/07 11:48 android14-6.1 3c9cb9c06fb9 0a02ce36 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2023/12/05 21:53 android14-6.1 924116f1b811 858d62d1 .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
2023/06/29 09:47 android14-6.1 80ac9236949e 134ddc02 .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.