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INFO: task hung in reg_check_chans_work (3)

Status: auto-closed as invalid on 2022/04/03 20:03
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+7b4a6fc3e452c67173e0@syzkaller.appspotmail.com
First crash: 1241d, last: 1084d
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] INFO: task hung in reg_check_chans_work (3) 2 (3) 2021/10/04 15:00
▶ ▼ Similar bugs (11)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 INFO: task hung in reg_check_chans_work 10 16d 301d 0/3 upstream: reported on 2024/01/27 00:47
upstream INFO: task hung in reg_check_chans_work (6) wireless C error 129 139d 212d 26/28 fixed on 2024/07/09 19:14
linux-4.14 INFO: task hung in reg_check_chans_work 1 929d 929d 0/1 auto-obsoleted due to no activity on 2022/09/05 08:58
upstream INFO: task hung in reg_check_chans_work (7) wireless C error 296 2h40m 60d 0/28 upstream: reported C repro on 2024/09/23 08:39
upstream INFO: task hung in reg_check_chans_work (4) wireless 4 876d 879d 0/28 auto-closed as invalid on 2022/09/28 14:08
upstream INFO: task hung in reg_check_chans_work net 15 2414d 2473d 0/28 closed as dup on 2018/02/14 15:33
android-44 INFO: task hung in reg_check_chans_work 18 2386d 2460d 0/2 auto-closed as invalid on 2019/02/22 14:50
android-49 INFO: task hung in reg_check_chans_work 18 2385d 2483d 0/3 auto-closed as invalid on 2019/02/22 15:19
linux-6.1 INFO: task hung in reg_check_chans_work 3 163d 181d 0/3 auto-obsoleted due to no activity on 2024/09/20 17:51
upstream INFO: task hung in reg_check_chans_work (5) wireless 26 390d 519d 0/28 auto-obsoleted due to no activity on 2024/01/08 12:17
upstream INFO: task hung in reg_check_chans_work (2) wireless 3 1508d 1517d 0/28 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):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/11/12 06:32 upstream ca2ef2d9f2aa 75b04091 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in reg_check_chans_work
2021/09/29 15:02 upstream a4e6f95a891a be530f6c .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in reg_check_chans_work
2021/09/29 05:08 upstream a4e6f95a891a d82cb927 .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in reg_check_chans_work
2021/09/29 05:01 upstream a4e6f95a891a d82cb927 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in reg_check_chans_work
2021/09/28 12:38 upstream 0513e464f900 78494d16 .config console log report info ci-upstream-kasan-gce INFO: task hung in reg_check_chans_work
2021/09/28 10:31 upstream 0513e464f900 78494d16 .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in reg_check_chans_work
2021/09/26 16:58 upstream a3b397b4fffb 8cac236e .config console log report info ci-upstream-kasan-gce-root INFO: task hung in reg_check_chans_work
2021/09/22 19:50 upstream cf1d2c3e7e2f 8cac236e .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in reg_check_chans_work
2021/09/22 18:53 upstream cf1d2c3e7e2f 8cac236e .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in reg_check_chans_work
2021/09/22 17:14 upstream 92477dd1faa6 169724fe .config console log report info ci-upstream-kasan-gce INFO: task hung in reg_check_chans_work
2021/09/20 04:48 upstream 20621d2f27a0 70b76c1d .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in reg_check_chans_work
2021/09/19 20:20 upstream bc1abb9e55ce 70b76c1d .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in reg_check_chans_work
2021/09/19 11:43 upstream d4d016caa4b8 70b76c1d .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in reg_check_chans_work
2021/09/19 02:30 upstream 93ff9f13be91 70b76c1d .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in reg_check_chans_work
2021/09/18 23:56 upstream 93ff9f13be91 70b76c1d .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in reg_check_chans_work
2021/09/17 21:19 upstream ddf21bd8ab98 70b76c1d .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in reg_check_chans_work
2021/09/17 18:11 upstream ddf21bd8ab98 70b76c1d .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in reg_check_chans_work
2021/09/17 06:26 upstream bdb575f87217 5b989942 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in reg_check_chans_work
2021/09/16 22:15 upstream ff1ffd71d5f0 aae492f2 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in reg_check_chans_work
2021/09/15 01:12 upstream 1619b69edce1 07e953c1 .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in reg_check_chans_work
2021/09/14 12:50 upstream d0ee23f9d78b 58d09404 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in reg_check_chans_work
2021/09/09 18:41 upstream a3fa7a101dcf e2776ee4 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in reg_check_chans_work
2021/09/09 15:26 upstream a3fa7a101dcf e2776ee4 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in reg_check_chans_work
2021/09/08 21:49 upstream ac08b1c68d1b e2776ee4 .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in reg_check_chans_work
2021/09/30 22:19 upstream 02d5e016800d 1d849ab4 .config console log report info ci-upstream-kasan-gce-386 INFO: task hung in reg_check_chans_work
2021/09/28 13:14 upstream 0513e464f900 d82cb927 .config console log report info ci-upstream-kasan-gce-386 INFO: task hung in reg_check_chans_work
2021/09/14 15:38 upstream d0ee23f9d78b 07e953c1 .config console log report info ci-upstream-kasan-gce-386 INFO: task hung in reg_check_chans_work
2021/11/26 13:46 net-next-old a0341b73d843 63eeac02 .config console log report info ci-upstream-net-kasan-gce INFO: task hung in reg_check_chans_work
2021/11/23 08:50 net-next-old 3b0e04140bc3 545ab074 .config console log report info ci-upstream-net-kasan-gce INFO: task hung in reg_check_chans_work
2021/10/20 05:31 net-next-old cb3dc8901ba4 466b7db1 .config console log report info ci-upstream-net-kasan-gce INFO: task hung in reg_check_chans_work
2021/10/20 03:08 net-next-old cb3dc8901ba4 466b7db1 .config console log report info ci-upstream-net-kasan-gce INFO: task hung in reg_check_chans_work
2021/10/20 00:44 net-next-old cb3dc8901ba4 466b7db1 .config console log report info ci-upstream-net-kasan-gce INFO: task hung in reg_check_chans_work
2021/10/19 18:42 net-next-old cb3dc8901ba4 466b7db1 .config console log report info ci-upstream-net-kasan-gce INFO: task hung in reg_check_chans_work
2021/10/19 15:47 net-next-old cb3dc8901ba4 24dc29db .config console log report info ci-upstream-net-kasan-gce INFO: task hung in reg_check_chans_work
2021/10/19 12:59 net-next-old cb3dc8901ba4 24dc29db .config console log report info ci-upstream-net-kasan-gce INFO: task hung in reg_check_chans_work
2021/10/19 00:39 net-next-old f616447034a1 24dc29db .config console log report info ci-upstream-net-kasan-gce INFO: task hung in reg_check_chans_work
2021/10/18 17:47 net-next-old d40dfa0cebd8 0c5d9412 .config console log report info ci-upstream-net-kasan-gce INFO: task hung in reg_check_chans_work
2021/09/30 22:41 bpf-next e68ac0082787 1d849ab4 .config console log report info ci-upstream-bpf-next-kasan-gce INFO: task hung in reg_check_chans_work
2021/09/27 02:11 net-next-old d59bdda85eb7 78494d16 .config console log report info ci-upstream-net-kasan-gce INFO: task hung in reg_check_chans_work
2021/09/16 07:19 net-next-old 5706383b30cf 07e953c1 .config console log report info ci-upstream-net-kasan-gce INFO: task hung in reg_check_chans_work
2021/09/10 22:29 net-next-old 626bf91a292e 5ae8508a .config console log report info ci-upstream-net-kasan-gce INFO: task hung in reg_check_chans_work
2021/08/09 21:19 net-next-old cfe908c11659 6972b106 .config console log report info ci-upstream-net-kasan-gce INFO: task hung in reg_check_chans_work
2021/06/30 07:09 net-next-old 3f8ad50a9e43 a4fccb01 .config console log report info ci-upstream-net-kasan-gce INFO: task hung in reg_check_chans_work
2021/12/04 20:02 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing e1c72d907f4c a617004c .config console log report info ci2-upstream-usb INFO: task hung in reg_check_chans_work
2021/10/21 02:37 linux-next 51dba6e335ff f111d03b .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: task hung in reg_check_chans_work
2021/10/21 01:10 linux-next 51dba6e335ff f111d03b .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: task hung in reg_check_chans_work
2021/10/20 14:46 linux-next 51dba6e335ff 418a00eb .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: task hung in reg_check_chans_work
2021/10/20 12:30 linux-next 51dba6e335ff 418a00eb .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: task hung in reg_check_chans_work
2021/10/20 10:52 linux-next 51dba6e335ff 418a00eb .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: task hung in reg_check_chans_work
2021/10/20 09:52 linux-next 51dba6e335ff 466b7db1 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: task hung in reg_check_chans_work
2021/09/16 04:21 linux-next 70ced02f322f 07e953c1 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: task hung in reg_check_chans_work
2021/09/13 11:05 linux-next 24a36d3171e4 3ce60af8 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: task hung in reg_check_chans_work
2021/09/07 08:20 linux-next b2bb710d34d5 6ca60148 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: task hung in reg_check_chans_work
2021/09/03 21:39 linux-next c1b13fe76e95 d236a457 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: task hung in reg_check_chans_work
* Struck through repros no longer work on HEAD.