syzbot


BUG: workqueue lockup

Status: public: reported C repro on 2019/04/11 00:00
Reported-by: syzbot+d06b99ae806747aaba18@syzkaller.appspotmail.com
First crash: 1733d, last: 1358d
Similar bugs (14)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: workqueue lockup (4) block C 47 1293d 1699d 16/24 fixed on 2019/12/13 00:31
linux-5.15 BUG: workqueue lockup origin:upstream C 35 3d13h 84d 0/3 upstream: reported C repro on 2023/03/11 08:51
android-5-15 BUG: workqueue lockup 53 14d 185d 0/2 premoderation: reported on 2022/11/29 19:20
upstream BUG: workqueue lockup (2) C 406 1849d 2007d 6/24 fixed on 2018/05/13 10:02
linux-4.14 BUG: workqueue lockup C 282 94d 1496d 0/1 upstream: reported C repro on 2019/04/29 11:26
upstream BUG: workqueue lockup C 172 2030d 2041d 3/24 fixed on 2017/11/11 01:37
upstream BUG: workqueue lockup (5) C done 989 10h57m 1235d 0/24 upstream: reported C repro on 2020/01/14 22:04
android-5-10 BUG: workqueue lockup (2) C error 42 10d 89d 0/2 upstream: reported C repro on 2023/03/05 21:10
upstream BUG: workqueue lockup (3) C 1215 1793d 1846d 9/24 fixed on 2018/07/09 18:05
android-6-1 BUG: workqueue lockup 1 16d 16d 0/2 premoderation: reported on 2023/05/17 23:30
linux-4.19 BUG: workqueue lockup C error 41 88d 1502d 0/1 upstream: reported C repro on 2019/04/22 20:37
android-5-10 BUG: workqueue lockup C error 25 488d 586d 0/2 closed as invalid on 2022/02/22 17:18
android-49 BUG: workqueue lockup C 69 1282d 1514d 0/3 public: reported C repro on 2019/04/11 08:44
linux-6.1 BUG: workqueue lockup origin:upstream C 18 4d07h 87d 0/3 upstream: reported C repro on 2023/03/07 17:51

Sample crash report:
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 180s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256
    in-flight: 68:rtc_timer_do_work
    pending: push_to_pool
workqueue events_power_efficient: flags=0x80
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256
    pending: check_lifetime
workqueue mm_percpu_wq: flags=0x8
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256
    pending: vmstat_update
workqueue kblockd: flags=0x18
  pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256
    pending: blk_mq_timeout_work
pool 2: cpus=1 node=0 flags=0x0 nice=0 hung=181s workers=2 idle: 18

Crashes (114):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Manager Title
2019/04/15 20:35 android-4.14 efe836537cf2 505ab413 .config console log report syz C ci-android-414-kasan-gce-root
2018/11/20 08:13 android-4.14 4e76528bd48d 9bc2a903 .config console log report syz C ci-android-414-kasan-gce-root
2019/09/13 18:57 android-4.14 f02af7b02c26 40fa42bc .config console log report ci-android-414-kasan-gce-root
2019/08/27 02:25 android-4.14 f5189d4af2b5 d21c5d9d .config console log report ci-android-414-kasan-gce-root
2019/08/14 13:28 android-4.14 0e28694fe668 5576551b .config console log report ci-android-414-kasan-gce-root
2019/08/08 04:07 android-4.14 b9cd593b1ba7 e6ebef88 .config console log report ci-android-414-kasan-gce-root
2019/07/25 08:27 android-4.14 85282d7e792d 32329ceb .config console log report ci-android-414-kasan-gce-root
2019/07/23 23:07 android-4.14 fae940268dce de453f34 .config console log report ci-android-414-kasan-gce-root
2019/07/17 15:19 android-4.14 269f182fac0b f613a7c4 .config console log report ci-android-414-kasan-gce-root
2019/06/17 19:20 android-4.14 cfee25d274dd 442206d7 .config console log report ci-android-414-kasan-gce-root
2019/05/03 19:29 android-4.14 b5123fd47340 d28f4ce5 .config console log report ci-android-414-kasan-gce-root
2019/05/01 01:22 android-4.14 c680586c4fb7 618456b4 .config console log report ci-android-414-kasan-gce-root
2019/04/27 22:18 android-4.14 ffa22221c473 b617407b .config console log report ci-android-414-kasan-gce-root
2019/04/05 17:15 android-4.14 b175f02b5457 40f2363e .config console log report ci-android-414-kasan-gce-root
2019/03/26 03:55 android-4.14 02b246355459 55684ce1 .config console log report ci-android-414-kasan-gce-root
2019/03/02 17:16 android-4.14 934272e9380b 1c0e457a .config console log report ci-android-414-kasan-gce-root
2019/02/12 09:55 android-4.14 d86c0425437e 65a0d619 .config console log report ci-android-414-kasan-gce-root
2019/02/10 03:37 android-4.14 57de59b3cf53 d75f7686 .config console log report ci-android-414-kasan-gce-root
2019/01/17 19:09 android-4.14 42506d99b820 769e75ed .config console log report ci-android-414-kasan-gce-root
2018/12/26 05:17 android-4.14 815e34f802d8 8a41a0ad .config console log report ci-android-414-kasan-gce-root
2018/12/25 01:20 android-4.14 815e34f802d8 8a41a0ad .config console log report ci-android-414-kasan-gce-root
2018/12/10 07:12 android-4.14 13b8d9fdf844 96cc4c50 .config console log report ci-android-414-kasan-gce-root
2018/09/24 20:46 android-4.14 666c420fa3ea 2f485cdf .config console log report ci-android-414-kasan-gce-root
2018/09/24 16:50 android-4.14 666c420fa3ea 2f485cdf .config console log report ci-android-414-kasan-gce-root
2018/09/24 14:12 android-4.14 666c420fa3ea 2f485cdf .config console log report ci-android-414-kasan-gce-root
2018/09/24 12:24 android-4.14 666c420fa3ea 2f485cdf .config console log report ci-android-414-kasan-gce-root
2018/09/24 07:53 android-4.14 666c420fa3ea 28d9ac76 .config console log report ci-android-414-kasan-gce-root
2018/09/24 06:10 android-4.14 666c420fa3ea 28d9ac76 .config console log report ci-android-414-kasan-gce-root
2018/09/23 17:30 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/23 16:01 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/23 14:41 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/23 12:41 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/23 08:10 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/23 06:19 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/23 04:54 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/23 00:40 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/22 19:39 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/22 13:51 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/22 12:17 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/22 10:26 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/22 09:05 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/22 04:43 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/22 02:40 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/21 15:07 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/21 13:34 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/21 09:37 android-4.14 666c420fa3ea 37079712 .config console log report ci-android-414-kasan-gce-root
2018/09/04 03:08 android-4.14 47350a9f13c6 a4718693 .config console log report ci-android-414-kasan-gce-root
* Struck through repros no longer work on HEAD.