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BUG: workqueue lockup

Status: upstream: reported C repro on 2023/06/22 22:19
Bug presence: origin:upstream
Labels: missing-backport
[Documentation on labels]
Reported-by: syzbot+2499e5a71acdc2680959@syzkaller.appspotmail.com
First crash: 722d, last: 8h07m
Cause bisection: failed (error log, bisect log)
  
▶ ▼ Bug presence (4)
Date Name Commit Repro Result
2023/09/06 android13-5.15-lts (ToT) 1317bd27a72f C [report] BUG: workqueue lockup
2023/06/23 lts (merge base) 8a7f2a5c5aa1 C Didn't crash
2023/06/23 upstream (ToT) 8a28a0b6f1a1 C [report] BUG: workqueue lockup
2023/09/06 upstream (ToT) 65d6e954e378 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 1830d 2236d 15/28 fixed on 2019/12/13 00:31
linux-5.15 BUG: workqueue lockup origin:upstream missing-backport C 479 6d16h 621d 0/3 upstream: reported C repro on 2023/03/11 08:51
upstream BUG: workqueue lockup (2) C 406 2386d 2544d 5/28 fixed on 2018/05/13 10:02
linux-4.14 BUG: workqueue lockup C 282 631d 2032d 0/1 upstream: reported C repro on 2019/04/29 11:26
upstream BUG: workqueue lockup C 172 2567d 2577d 3/28 fixed on 2017/11/11 01:37
upstream BUG: workqueue lockup (5) kernel C done 8799 2h17m 1772d 0/28 upstream: reported C repro on 2020/01/14 22:04
android-5-10 BUG: workqueue lockup (2) C error 4813 52m 626d 0/2 upstream: reported C repro on 2023/03/05 21:10
upstream BUG: workqueue lockup (3) C 1215 2330d 2383d 8/28 fixed on 2018/07/09 18:05
android-6-1 BUG: workqueue lockup origin:upstream missing-backport C error 2409 26m 486d 0/2 upstream: reported C repro on 2023/07/23 17:25
android-414 BUG: workqueue lockup C 114 1895d 2051d 0/1 public: reported C repro on 2019/04/11 00:00
linux-4.19 BUG: workqueue lockup C error 41 625d 2039d 0/1 upstream: reported C repro on 2019/04/22 20:37
android-5-10 BUG: workqueue lockup C error 25 1025d 1123d 0/2 closed as invalid on 2022/02/22 17:18
android-49 BUG: workqueue lockup C 69 1819d 2051d 0/3 public: reported C repro on 2019/04/11 08:44
linux-6.1 BUG: workqueue lockup origin:upstream missing-backport C 212 1d17h 624d 0/3 upstream: reported C repro on 2023/03/07 17:51

Sample crash report:
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 298s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 182s!
BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 297s!
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=3/256 refcnt=4
    in-flight: 39:gc_worker
    pending: neigh_periodic_work, neigh_periodic_work
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: check_lifetime
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
pool 2: cpus=1 node=0 flags=0x0 nice=0 hung=182s workers=2 idle: 60

Crashes (2034):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/11/17 19:25 android13-5.15-lts ef332e923197 cfe3a04a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/17 01:23 android13-5.15-lts 42bb395d8907 cfe3a04a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/15 17:06 android13-5.15-lts 3bfe08931bff f6ede3a3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/13 18:26 android13-5.15-lts 3bfe08931bff bb3f8425 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/13 10:25 android13-5.15-lts 3bfe08931bff 62026c85 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/13 04:44 android13-5.15-lts 3bfe08931bff 62026c85 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/10/31 22:52 android13-5.15-lts 5e4635681cf1 96eb609f .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/10/21 04:38 android13-5.15-lts 5e4635681cf1 cd6fc0a3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/10/21 02:47 android13-5.15-lts 5e4635681cf1 cd6fc0a3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/10/18 01:25 android13-5.15-lts 5e4635681cf1 666f77ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/10/14 20:03 android13-5.15-lts 5e4635681cf1 084d8178 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/10/14 03:54 android13-5.15-lts 5e4635681cf1 084d8178 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/10/09 06:43 android13-5.15-lts 6ddd8fde5711 402f1df0 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/10/07 00:21 android13-5.15-lts 80dd36dca275 d7906eff .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/10/06 21:39 android13-5.15-lts 80dd36dca275 d7906eff .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/09/17 09:09 android13-5.15-lts b92c0d35d015 c673ca06 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/09/17 02:34 android13-5.15-lts b92c0d35d015 c673ca06 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/06/23 09:59 android13-5.15-lts 85445b5a2107 edc5149a .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/06/21 14:45 android13-5.15-lts 85445b5a2107 dac2aa43 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/06/20 19:34 android13-5.15-lts 85445b5a2107 dac2aa43 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/06/20 10:29 android13-5.15-lts 85445b5a2107 41b7e219 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/06/09 21:29 android13-5.15-lts 79bd336c7a94 82c05ab8 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/06/07 03:07 android13-5.15-lts 79bd336c7a94 121701b6 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2023/06/22 22:07 android13-5.15-lts 565c3abfa129 79782afc .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/18 08:09 android13-5.15-lts ef332e923197 cfe3a04a .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/18 06:29 android13-5.15-lts ef332e923197 cfe3a04a .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/17 22:10 android13-5.15-lts ef332e923197 cfe3a04a .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/15 13:10 android13-5.15-lts 3bfe08931bff f6ede3a3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/14 05:37 android13-5.15-lts 3bfe08931bff bb3f8425 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/14 00:01 android13-5.15-lts 3bfe08931bff bb3f8425 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/05 23:54 android13-5.15-lts 5e4635681cf1 da38b4c9 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/10/28 11:04 android13-5.15-lts 5e4635681cf1 65e8686b .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/10/27 06:27 android13-5.15-lts 5e4635681cf1 65e8686b .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/10/24 21:54 android13-5.15-lts 5e4635681cf1 0d144d1a .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/10/17 13:59 android13-5.15-lts 5e4635681cf1 666f77ed .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/10/06 09:51 android13-5.15-lts 80dd36dca275 d7906eff .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/09/29 00:31 android13-5.15-lts 8e36931104ac ba29ff75 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/09/18 18:26 android13-5.15-lts b92c0d35d015 c673ca06 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/09/03 23:40 android13-5.15-lts 38761ec9fc9e 326f9c5a .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/09/01 17:04 android13-5.15-lts 29d153aabd54 1eda0d14 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/06/23 04:22 android13-5.15-lts 85445b5a2107 edc5149a .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/21 01:09 android13-5.15-lts 2e66050fb753 4b25d554 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/20 19:31 android13-5.15-lts 2e66050fb753 4fca1650 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15-perf BUG: workqueue lockup
2024/11/20 12:05 android13-5.15-lts 2e66050fb753 7d02db5a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15-perf BUG: workqueue lockup
2024/11/20 10:31 android13-5.15-lts 2e66050fb753 7d02db5a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15-perf BUG: workqueue lockup
2024/11/20 07:37 android13-5.15-lts 2e66050fb753 7d02db5a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15-perf BUG: workqueue lockup
2024/11/19 14:33 android13-5.15-lts 2e66050fb753 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15-perf BUG: workqueue lockup
2024/11/19 09:39 android13-5.15-lts 2e66050fb753 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15-perf BUG: workqueue lockup
2024/11/19 06:44 android13-5.15-lts 2e66050fb753 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/19 06:21 android13-5.15-lts 2e66050fb753 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/19 02:20 android13-5.15-lts 2e66050fb753 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/19 00:36 android13-5.15-lts 2e66050fb753 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15-perf BUG: workqueue lockup
2024/11/18 23:29 android13-5.15-lts 2e66050fb753 e7bb5d6e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/18 20:25 android13-5.15-lts 2e66050fb753 e7bb5d6e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/18 10:34 android13-5.15-lts 2e66050fb753 e7bb5d6e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/17 04:37 android13-5.15-lts 42bb395d8907 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/17 02:38 android13-5.15-lts 42bb395d8907 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/15 09:12 android13-5.15-lts 3bfe08931bff f6ede3a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/13 09:32 android13-5.15-lts 3bfe08931bff 62026c85 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/13 04:22 android13-5.15-lts 3bfe08931bff 62026c85 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/12 00:10 android13-5.15-lts 3bfe08931bff 75bb1b32 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/11 19:53 android13-5.15-lts 3bfe08931bff 0c4b1325 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15-perf BUG: workqueue lockup
2024/11/11 14:46 android13-5.15-lts 3bfe08931bff 0c4b1325 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/10 23:12 android13-5.15-lts 5e4635681cf1 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/10 21:01 android13-5.15-lts 5e4635681cf1 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/09 22:00 android13-5.15-lts 5e4635681cf1 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/09 21:27 android13-5.15-lts 5e4635681cf1 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/09 18:09 android13-5.15-lts 5e4635681cf1 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15-perf BUG: workqueue lockup
2024/11/09 03:57 android13-5.15-lts 5e4635681cf1 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/09 03:10 android13-5.15-lts 5e4635681cf1 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/08 16:39 android13-5.15-lts 5e4635681cf1 179b040e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/08 15:53 android13-5.15-lts 5e4635681cf1 179b040e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/08 15:49 android13-5.15-lts 5e4635681cf1 179b040e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/08 02:49 android13-5.15-lts 5e4635681cf1 179b040e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/07 03:48 android13-5.15-lts 5e4635681cf1 df3dc63b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/06 23:18 android13-5.15-lts 5e4635681cf1 df3dc63b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/06 22:04 android13-5.15-lts 5e4635681cf1 df3dc63b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/05 20:08 android13-5.15-lts 5e4635681cf1 da38b4c9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/05 18:37 android13-5.15-lts 5e4635681cf1 da38b4c9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/05 11:30 android13-5.15-lts 5e4635681cf1 da38b4c9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/05 07:50 android13-5.15-lts 5e4635681cf1 509da429 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/05 03:38 android13-5.15-lts 5e4635681cf1 509da429 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/05 01:13 android13-5.15-lts 5e4635681cf1 509da429 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/05 01:07 android13-5.15-lts 5e4635681cf1 509da429 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2024/11/04 14:35 android13-5.15-lts 5e4635681cf1 f00eed24 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2023/05/20 09:13 android13-5.15-lts 19c0ed55a470 96689200 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
2022/11/29 19:19 android13-5.15-lts d9d889009b78 579a3740 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: workqueue lockup
* Struck through repros no longer work on HEAD.