syzbot


INFO: task hung in reg_check_chans_work (3)

Status: auto-closed as invalid on 2022/04/03 20:03
Reported-by: syzbot+7b4a6fc3e452c67173e0@syzkaller.appspotmail.com
First crash: 403d, last: 246d
similar bugs (5):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 INFO: task hung in reg_check_chans_work 1 91d 91d 0/1 upstream: reported on 2022/05/08 08:58
upstream INFO: task hung in reg_check_chans_work 15 1576d 1635d 0/23 closed as dup on 2018/02/14 15:33
android-44 INFO: task hung in reg_check_chans_work 18 1548d 1621d 0/2 auto-closed as invalid on 2019/02/22 14:50
android-49 INFO: task hung in reg_check_chans_work 18 1547d 1645d 0/3 auto-closed as invalid on 2019/02/22 15:19
upstream INFO: task hung in reg_check_chans_work (2) 3 670d 679d 0/23 auto-closed as invalid on 2021/01/04 12:48

Sample crash report:
INFO: task kworker/0:4:8976 blocked for more than 167 seconds.
      Not tainted 5.15.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:4     state:D stack:26376 pid: 8976 ppid:     2 flags:0x00004000
Workqueue: events_power_efficient reg_check_chans_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4969 [inline]
 __schedule+0xa9a/0x4940 kernel/sched/core.c:6250
 schedule+0xd2/0x260 kernel/sched/core.c:6323
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6382
 __mutex_lock_common kernel/locking/mutex.c:680 [inline]
 __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
 reg_check_chans_work+0x83/0xe10 net/wireless/reg.c:2423
 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>

Crashes (60):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2021/11/12 06:32 upstream ca2ef2d9f2aa 75b04091 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-selinux-root 2021/09/29 15:02 upstream a4e6f95a891a be530f6c .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-smack-root 2021/09/29 05:08 upstream a4e6f95a891a d82cb927 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-selinux-root 2021/09/29 05:01 upstream a4e6f95a891a d82cb927 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce 2021/09/28 12:38 upstream 0513e464f900 78494d16 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-smack-root 2021/09/28 10:31 upstream 0513e464f900 78494d16 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-root 2021/09/26 16:58 upstream a3b397b4fffb 8cac236e .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-smack-root 2021/09/22 19:50 upstream cf1d2c3e7e2f 8cac236e .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-smack-root 2021/09/22 18:53 upstream cf1d2c3e7e2f 8cac236e .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce 2021/09/22 17:14 upstream 92477dd1faa6 169724fe .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-smack-root 2021/09/20 04:48 upstream 20621d2f27a0 70b76c1d .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-selinux-root 2021/09/19 20:20 upstream bc1abb9e55ce 70b76c1d .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-smack-root 2021/09/19 11:43 upstream d4d016caa4b8 70b76c1d .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-smack-root 2021/09/19 02:30 upstream 93ff9f13be91 70b76c1d .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-smack-root 2021/09/18 23:56 upstream 93ff9f13be91 70b76c1d .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-smack-root 2021/09/17 21:19 upstream ddf21bd8ab98 70b76c1d .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-selinux-root 2021/09/17 18:11 upstream ddf21bd8ab98 70b76c1d .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-selinux-root 2021/09/17 06:26 upstream bdb575f87217 5b989942 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-root 2021/09/16 22:15 upstream ff1ffd71d5f0 aae492f2 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-smack-root 2021/09/15 01:12 upstream 1619b69edce1 07e953c1 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-selinux-root 2021/09/14 12:50 upstream d0ee23f9d78b 58d09404 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-selinux-root 2021/09/09 18:41 upstream a3fa7a101dcf e2776ee4 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-root 2021/09/09 15:26 upstream a3fa7a101dcf e2776ee4 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-smack-root 2021/09/08 21:49 upstream ac08b1c68d1b e2776ee4 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-386 2021/09/30 22:19 upstream 02d5e016800d 1d849ab4 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-386 2021/09/28 13:14 upstream 0513e464f900 d82cb927 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-kasan-gce-386 2021/09/14 15:38 upstream d0ee23f9d78b 07e953c1 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-net-kasan-gce 2021/11/26 13:46 net-next a0341b73d843 63eeac02 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-net-kasan-gce 2021/11/23 08:50 net-next 3b0e04140bc3 545ab074 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-net-kasan-gce 2021/10/20 05:31 net-next cb3dc8901ba4 466b7db1 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-net-kasan-gce 2021/10/20 03:08 net-next cb3dc8901ba4 466b7db1 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-net-kasan-gce 2021/10/20 00:44 net-next cb3dc8901ba4 466b7db1 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-net-kasan-gce 2021/10/19 18:42 net-next cb3dc8901ba4 466b7db1 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-net-kasan-gce 2021/10/19 15:47 net-next cb3dc8901ba4 24dc29db .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-net-kasan-gce 2021/10/19 12:59 net-next cb3dc8901ba4 24dc29db .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-net-kasan-gce 2021/10/19 00:39 net-next f616447034a1 24dc29db .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-net-kasan-gce 2021/10/18 17:47 net-next d40dfa0cebd8 0c5d9412 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-bpf-next-kasan-gce 2021/09/30 22:41 bpf-next e68ac0082787 1d849ab4 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-net-kasan-gce 2021/09/27 02:11 net-next d59bdda85eb7 78494d16 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-net-kasan-gce 2021/09/16 07:19 net-next 5706383b30cf 07e953c1 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-net-kasan-gce 2021/09/10 22:29 net-next 626bf91a292e 5ae8508a .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-net-kasan-gce 2021/08/09 21:19 net-next cfe908c11659 6972b106 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-net-kasan-gce 2021/06/30 07:09 net-next 3f8ad50a9e43 a4fccb01 .config log report info INFO: task hung in reg_check_chans_work
ci2-upstream-usb 2021/12/04 20:02 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing e1c72d907f4c a617004c .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-linux-next-kasan-gce-root 2021/10/21 02:37 linux-next 51dba6e335ff f111d03b .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-linux-next-kasan-gce-root 2021/10/21 01:10 linux-next 51dba6e335ff f111d03b .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-linux-next-kasan-gce-root 2021/10/20 14:46 linux-next 51dba6e335ff 418a00eb .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-linux-next-kasan-gce-root 2021/10/20 12:30 linux-next 51dba6e335ff 418a00eb .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-linux-next-kasan-gce-root 2021/10/20 10:52 linux-next 51dba6e335ff 418a00eb .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-linux-next-kasan-gce-root 2021/10/20 09:52 linux-next 51dba6e335ff 466b7db1 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-linux-next-kasan-gce-root 2021/09/16 04:21 linux-next 70ced02f322f 07e953c1 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-linux-next-kasan-gce-root 2021/09/13 11:05 linux-next 24a36d3171e4 3ce60af8 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-linux-next-kasan-gce-root 2021/09/07 08:20 linux-next b2bb710d34d5 6ca60148 .config log report info INFO: task hung in reg_check_chans_work
ci-upstream-linux-next-kasan-gce-root 2021/09/03 21:39 linux-next c1b13fe76e95 d236a457 .config log report info INFO: task hung in reg_check_chans_work