syzbot


BUG: workqueue lockup

Status: upstream: reported C repro on 2023/07/23 17:25
Bug presence: origin:upstream
Labels: missing-backport
[Documentation on labels]
Reported-by: syzbot+64286f251ae123d869a5@syzkaller.appspotmail.com
First crash: 636d, last: 13h32m
Cause bisection: failed (error log, bisect log)
  
Bug presence (4)
Date Name Commit Repro Result
2024/10/23 android14-6.1 (ToT) e02772c76d6f C [report] BUG: workqueue lockup
2023/09/10 lts (merge base) b1644a0031cf C [report] BUG: workqueue lockup
2023/09/10 upstream (ToT) 1548b060d6f3 C [report] BUG: workqueue lockup
2024/10/23 upstream (ToT) c2ee9f594da8 C Didn't crash
Similar bugs (14)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: workqueue lockup (4) block C 47 1913d 2320d 15/28 fixed on 2019/12/13 00:31
linux-5.15 BUG: workqueue lockup origin:upstream missing-backport C done 504 12d 704d 0/3 upstream: reported C repro on 2023/03/11 08:51
android-5-15 BUG: workqueue lockup origin:upstream missing-backport C error 2450 1d05h 600d 0/2 upstream: reported C repro on 2023/06/22 22:19
upstream BUG: workqueue lockup (2) C 406 2470d 2628d 5/28 fixed on 2018/05/13 10:02
linux-4.14 BUG: workqueue lockup C 282 714d 2116d 0/1 upstream: reported C repro on 2019/04/29 11:26
upstream BUG: workqueue lockup C 172 2650d 2661d 3/28 fixed on 2017/11/11 01:37
upstream BUG: workqueue lockup (5) kernel C done 11398 5h20m 1855d 0/28 upstream: reported C repro on 2020/01/14 22:04
android-5-10 BUG: workqueue lockup (2) C error 5899 now 709d 0/2 upstream: reported C repro on 2023/03/05 21:10
upstream BUG: workqueue lockup (3) C 1215 2414d 2466d 8/28 fixed on 2018/07/09 18:05
android-414 BUG: workqueue lockup C 114 1979d 2134d 0/1 public: reported C repro on 2019/04/11 00:00
linux-4.19 BUG: workqueue lockup C error 41 708d 2122d 0/1 upstream: reported C repro on 2019/04/22 20:37
android-5-10 BUG: workqueue lockup C error 25 1108d 1207d 0/2 closed as invalid on 2022/02/22 17:18
android-49 BUG: workqueue lockup C 69 1902d 2134d 0/3 public: reported C repro on 2019/04/11 08:44
linux-6.1 BUG: workqueue lockup origin:upstream missing-backport C unreliable 228 12h33m 708d 0/3 upstream: reported C repro on 2023/03/07 17:51

Sample crash report:
RBP: 00007fcb060f13c0 R08: 00007fcb060276c0 R09: 00007fcb060276c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcb060f13cc
R13: 0000000000000000 R14: 00007fff69d64f80 R15: 00007fff69d65068
 </TASK>
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 243s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 243s!
BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 244s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: vmstat_shepherd, psi_avgs_work
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, neigh_periodic_work, gc_worker, check_lifetime
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: reg_check_chans_work
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 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 (2846):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/02/04 20:28 android14-6.1 4033df202b20 8f267cef .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/02 13:53 android14-6.1 2055772eada0 568559e4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/01 12:13 android14-6.1 2055772eada0 aa47157c .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/31 22:27 android14-6.1 554eb9d61ac0 aa47157c .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/31 06:26 android14-6.1 554eb9d61ac0 4c6ac32f .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/30 22:30 android14-6.1 554eb9d61ac0 4c6ac32f .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/26 19:20 android14-6.1 ef4fb40b87a9 9fbd772e .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/23 04:43 android14-6.1 0405a25a6ed7 a44b0418 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/20 09:26 android14-6.1 d12538e9da37 f2cb035c .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/18 20:05 android14-6.1 d12538e9da37 f2cb035c .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/18 17:41 android14-6.1 d12538e9da37 f2cb035c .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/18 13:25 android14-6.1 d12538e9da37 f2cb035c .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/15 12:22 android14-6.1 e09bed30088f 7315a7cf .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/14 13:22 android14-6.1 770852bf7d99 b1f1cd88 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/14 09:24 android14-6.1 770852bf7d99 b1f1cd88 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/12 19:33 android14-6.1 770852bf7d99 6dbc6a9b .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/12 15:57 android14-6.1 770852bf7d99 6dbc6a9b .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/12 08:05 android14-6.1 770852bf7d99 6dbc6a9b .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/12 03:02 android14-6.1 770852bf7d99 6dbc6a9b .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/11 17:24 android14-6.1 770852bf7d99 6dbc6a9b .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/09 20:25 android14-6.1 bda0401cd827 9220929f .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/08 14:03 android14-6.1 616d7c64fd84 f3558dbf .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/05 16:48 android14-6.1 e2b9748880b9 f3558dbf .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/05 14:51 android14-6.1 e2b9748880b9 f3558dbf .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/05 11:55 android14-6.1 e2b9748880b9 f3558dbf .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/04 23:59 android14-6.1 e2b9748880b9 f3558dbf .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/01 23:11 android14-6.1 e2b9748880b9 d3ccff63 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/12/30 10:50 android14-6.1 3f924195e222 d3ccff63 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2024/12/29 23:30 android14-6.1 3f924195e222 d3ccff63 .config console log report syz / log 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
2025/02/12 05:57 android14-6.1 c93dcf3b5358 f2baddf5 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/31 08:15 android14-6.1 554eb9d61ac0 4c6ac32f .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/31 00:19 android14-6.1 554eb9d61ac0 4c6ac32f .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/21 15:52 android14-6.1 d12538e9da37 6e87cfa2 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/19 23:41 android14-6.1 d12538e9da37 f2cb035c .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/12 17:29 android14-6.1 770852bf7d99 6dbc6a9b .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/10 22:40 android14-6.1 770852bf7d99 6dbc6a9b .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/06 08:59 android14-6.1 e2b9748880b9 f3558dbf .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/06 01:37 android14-6.1 e2b9748880b9 f3558dbf .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/02 01:13 android14-6.1 e2b9748880b9 d3ccff63 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/01 18:16 android14-6.1 e2b9748880b9 d3ccff63 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/01 11:03 android14-6.1 e2b9748880b9 d3ccff63 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/10 21:08 android14-6.1 1ac09f5c0571 43f51a00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/10 08:42 android14-6.1 1ac09f5c0571 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/10 06:23 android14-6.1 1ac09f5c0571 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/10 03:36 android14-6.1 1ac09f5c0571 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/02/10 01:47 android14-6.1 1ac09f5c0571 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/09 23:36 android14-6.1 1ac09f5c0571 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/09 20:23 android14-6.1 1ac09f5c0571 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/09 12:26 android14-6.1 1ac09f5c0571 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/09 00:55 android14-6.1 1ac09f5c0571 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/08 10:24 android14-6.1 1ac09f5c0571 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/07 22:42 android14-6.1 1ac09f5c0571 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/07 05:11 android14-6.1 09717ac61c87 8002dd28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/05 15:17 android14-6.1 7658169f5f5f 4dc70884 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/05 11:17 android14-6.1 7658169f5f5f 5896748e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/02/03 06:20 android14-6.1 2055772eada0 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/02/02 22:45 android14-6.1 2055772eada0 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/02/02 13:24 android14-6.1 2055772eada0 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/02/02 08:15 android14-6.1 2055772eada0 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/02 04:28 android14-6.1 2055772eada0 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/02/01 16:09 android14-6.1 2055772eada0 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/02/01 06:37 android14-6.1 2055772eada0 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/01/31 19:12 android14-6.1 554eb9d61ac0 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/31 16:24 android14-6.1 554eb9d61ac0 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/01/31 14:17 android14-6.1 554eb9d61ac0 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/31 12:57 android14-6.1 554eb9d61ac0 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/31 07:55 android14-6.1 554eb9d61ac0 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/01/31 05:36 android14-6.1 554eb9d61ac0 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/31 04:51 android14-6.1 554eb9d61ac0 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/01/31 03:44 android14-6.1 554eb9d61ac0 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/01/30 18:16 android14-6.1 554eb9d61ac0 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/30 15:09 android14-6.1 554eb9d61ac0 afe4eff5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/01/30 08:56 android14-6.1 554eb9d61ac0 afe4eff5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/01/30 00:54 android14-6.1 554eb9d61ac0 136953f1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/29 23:46 android14-6.1 554eb9d61ac0 136953f1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/01/29 22:11 android14-6.1 554eb9d61ac0 136953f1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/01/29 14:54 android14-6.1 554eb9d61ac0 136953f1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/29 05:46 android14-6.1 773ad7ab1397 865ef71e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/29 02:23 android14-6.1 773ad7ab1397 865ef71e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/28 21:59 android14-6.1 1ffc24e7e898 f5427d7c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/01/28 06:03 android14-6.1 11620ab958c2 18070896 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/28 05:00 android14-6.1 11620ab958c2 18070896 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf BUG: workqueue lockup
2025/01/28 02:36 android14-6.1 11620ab958c2 18070896 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/27 15:17 android14-6.1 2f2e115eecbd d99a33ad .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/27 09:30 android14-6.1 ef4fb40b87a9 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/27 06:17 android14-6.1 ef4fb40b87a9 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 BUG: workqueue lockup
2025/01/26 17:36 android14-6.1 ef4fb40b87a9 9fbd772e .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.