syzbot


INFO: task hung in crda_timeout_work (8)

Status: upstream: reported C repro on 2024/09/27 16:53
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+d41f74db64598e0b5016@syzkaller.appspotmail.com
First crash: 132d, last: 10h05m
Cause bisection: introduced by (bisect log) :
commit 5f6bd380c7bdbe10f7b4e8ddcceed60ce0714c6d
Author: Peter Zijlstra <peterz@infradead.org>
Date: Mon May 27 12:06:55 2024 +0000

  sched/rt: Remove default bandwidth control

Crash: INFO: task hung in corrupted (log)
Repro: C syz .config
  
Discussions (3)
Title Replies (including bot) Last reply
[syzbot] Monthly wireless report (Nov 2024) 0 (1) 2024/11/14 08:58
[syzbot] Monthly wireless report (Oct 2024) 0 (1) 2024/10/14 07:15
[syzbot] [wireless?] INFO: task hung in crda_timeout_work (8) 0 (1) 2024/09/27 16:53
Similar bugs (20)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in crda_timeout_work net 1 2256d 2256d 0/28 auto-closed as invalid on 2019/03/16 12:56
linux-6.1 INFO: task hung in crda_timeout_work (2) 1 30d 30d 0/3 upstream: reported on 2024/10/22 06:51
upstream INFO: task hung in crda_timeout_work (2) net 1 2070d 2070d 0/28 auto-closed as invalid on 2019/09/19 06:28
upstream INFO: task hung in crda_timeout_work (7) wireless 1084 136d 180d 26/28 fixed on 2024/07/09 19:14
upstream INFO: task hung in crda_timeout_work (6) wireless 1 876d 876d 0/28 auto-closed as invalid on 2022/09/27 01:38
android-44 INFO: task hung in crda_timeout_work 1 2421d 2421d 0/2 auto-closed as invalid on 2019/02/22 14:39
upstream INFO: task hung in crda_timeout_work (3) wireless 8 1505d 1597d 0/28 auto-closed as invalid on 2021/01/06 02:49
upstream INFO: task hung in crda_timeout_work (5) wireless 1 1169d 1169d 0/28 auto-closed as invalid on 2021/12/07 21:47
linux-6.1 INFO: task hung in crda_timeout_work 49 101d 184d 0/3 auto-obsoleted due to no activity on 2024/10/20 15:08
linux-5.15 INFO: task hung in crda_timeout_work 41 7d13h 183d 0/3 upstream: reported on 2024/05/21 09:52
upstream INFO: task hung in crda_timeout_work (4) wireless 1 1385d 1385d 0/28 auto-closed as invalid on 2021/05/17 11:47
linux-5.15 INFO: rcu detected stall in worker_thread 1 419d 419d 0/3 auto-obsoleted due to no activity on 2024/01/09 18:17
upstream INFO: rcu detected stall in worker_thread (8) kernel 1 562d 562d 0/28 auto-obsoleted due to no activity on 2023/08/07 05:14
upstream INFO: rcu detected stall in worker_thread (5) kernel 2 903d 939d 0/28 auto-closed as invalid on 2022/08/31 00:50
upstream INFO: rcu detected stall in worker_thread (9) fs mm C done 2652 2h11m 410d 0/28 upstream: reported C repro on 2023/10/07 18:33
linux-6.1 INFO: rcu detected stall in worker_thread 6 154d 184d 0/3 auto-obsoleted due to no activity on 2024/09/27 16:46
upstream INFO: rcu detected stall in worker_thread (6) kernel 1 778d 778d 0/28 auto-obsoleted due to no activity on 2023/01/12 15:50
linux-5.15 INFO: rcu detected stall in worker_thread (2) 4 158d 163d 0/3 auto-obsoleted due to no activity on 2024/09/24 04:34
upstream INFO: rcu detected stall in worker_thread (7) kernel 1 671d 671d 0/28 auto-obsoleted due to no activity on 2023/04/27 16:37
android-5-15 BUG: soft lockup in worker_thread origin:lts C done 1 87d 87d 0/2 upstream: reported C repro on 2024/08/26 04:19

Sample crash report:
INFO: task kworker/1:1:46 blocked for more than 144 seconds.
      Not tainted 6.11.0-syzkaller-10622-gaa486552a110 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1     state:D stack:24304 pid:46    tgid:46    ppid:2      flags:0x00004000
Workqueue: events_power_efficient crda_timeout_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x1895/0x4b30 kernel/sched/core.c:6675
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6767
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
 crda_timeout_work+0x15/0x50 net/wireless/reg.c:540
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/1:0/25:
1 lock held by khungtaskd/30:
 #0: ffffffff8e937ee0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 #0: ffffffff8e937ee0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffffffff8e937ee0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6701

Crashes (373):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/09/26 12:01 upstream aa486552a110 0d19f247 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2024/10/08 22:42 net-next 489cee4caeba 402f1df0 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/10/12 05:23 upstream 9e4c6c1ad9a1 084d8178 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2024/10/06 20:22 upstream 8f602276d390 d7906eff .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2024/10/18 07:06 net-next 6d858708d465 666f77ed .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/11/18 08:14 upstream f66d6acccbc0 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in crda_timeout_work
2024/11/17 20:34 upstream f66d6acccbc0 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in crda_timeout_work
2024/11/11 11:52 upstream 2d5404caa8c7 97fe5517 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in crda_timeout_work
2024/11/10 07:06 upstream de2f378f2b77 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2024/11/08 09:23 upstream 906bd684e4b1 179b040e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2024/11/02 16:15 upstream 11066801dd4b f00eed24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2024/11/02 14:10 upstream 11066801dd4b f00eed24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2024/11/02 06:28 upstream 11066801dd4b f00eed24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2024/11/02 00:30 upstream 6c52d4da1c74 f00eed24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2024/11/01 07:31 upstream 6c52d4da1c74 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in crda_timeout_work
2024/10/31 22:41 upstream 0fc810ae3ae1 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in crda_timeout_work
2024/10/31 21:39 upstream 0fc810ae3ae1 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2024/10/30 10:50 upstream c1e939a21eb1 66aeb999 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in crda_timeout_work
2024/10/27 11:48 upstream 850925a8133c 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2024/10/27 05:37 upstream 850925a8133c 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in crda_timeout_work
2024/10/26 12:58 upstream 850925a8133c 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2024/10/22 23:07 upstream c2ee9f594da8 9d74f456 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in crda_timeout_work
2024/09/18 03:01 upstream 2f27fce67173 c673ca06 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2024/10/21 10:46 upstream c55228220dd3 cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in crda_timeout_work
2024/11/20 20:51 net 66418447d27b 4fca1650 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2024/11/20 03:28 net 66418447d27b 7d02db5a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2024/11/19 16:20 net 4262bacb748f 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2024/11/19 12:41 net 4262bacb748f 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2024/11/18 00:29 net 8ffade77b633 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2024/11/15 00:04 net 5b366eae7193 77f3eeb7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2024/11/14 03:16 net 73af53d82076 a8c99394 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2024/11/14 00:24 net 73af53d82076 a8c99394 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2024/11/13 17:01 net 73af53d82076 62026c85 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2024/11/09 22:48 net eb72e7fcc839 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2024/11/01 01:36 net d80a30913084 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2024/11/13 22:02 net-next 8545b75bc414 a8c99394 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/11/13 00:24 net-next a58f00ed24b8 62026c85 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/11/11 04:49 net-next 774ca6d3bf24 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/11/10 21:40 net-next 774ca6d3bf24 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/11/10 10:48 net-next 774ca6d3bf24 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/11/09 12:21 net-next 4861333b4217 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/11/06 04:29 net-next ccb35037c48a 3a465482 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/11/03 04:54 net-next dbb9a7ef3478 f00eed24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/11/02 09:56 net-next dbb9a7ef3478 f00eed24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/10/31 05:32 net-next d30b56c8666d fb888278 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/10/29 17:17 net-next ab101c553bc1 66aeb999 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/10/29 14:42 net-next ab101c553bc1 66aeb999 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/10/28 20:02 net-next 6d858708d465 9efb3cc7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/10/28 18:49 net-next 6d858708d465 9efb3cc7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/10/26 23:09 net-next 6d858708d465 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/10/26 19:32 net-next 6d858708d465 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/10/26 16:01 net-next 6d858708d465 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/10/26 08:54 net-next 6d858708d465 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/10/26 05:33 net-next 6d858708d465 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2024/11/07 16:55 linux-next 74741a050b79 c069283c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in crda_timeout_work
2024/11/05 23:31 linux-next 850f22c42f4b 3a465482 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in crda_timeout_work
2024/10/31 16:52 linux-next f9f24ca362a4 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in crda_timeout_work
* Struck through repros no longer work on HEAD.