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: 219d, last: 1d08h
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 (5)
Title Replies (including bot) Last reply
[syzbot] Monthly wireless report (Jan 2025) 0 (1) 2025/01/15 13:48
[syzbot] Monthly wireless report (Dec 2024) 0 (1) 2024/12/16 09:44
[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 (21)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in crda_timeout_work net 1 2344d 2343d 0/28 auto-closed as invalid on 2019/03/16 12:56
linux-6.1 INFO: task hung in crda_timeout_work (2) 1 117d 117d 0/3 auto-obsoleted due to no activity on 2025/01/30 06:51
upstream INFO: task hung in crda_timeout_work (2) net 1 2157d 2157d 0/28 auto-closed as invalid on 2019/09/19 06:28
upstream INFO: task hung in crda_timeout_work (7) wireless 1084 224d 267d 26/28 fixed on 2024/07/09 19:14
upstream INFO: task hung in crda_timeout_work (6) wireless 1 963d 963d 0/28 auto-closed as invalid on 2022/09/27 01:38
android-44 INFO: task hung in crda_timeout_work 1 2508d 2508d 0/2 auto-closed as invalid on 2019/02/22 14:39
upstream INFO: task hung in crda_timeout_work (3) wireless 8 1592d 1684d 0/28 auto-closed as invalid on 2021/01/06 02:49
upstream INFO: task hung in crda_timeout_work (5) wireless 1 1256d 1256d 0/28 auto-closed as invalid on 2021/12/07 21:47
linux-6.1 INFO: task hung in crda_timeout_work 49 189d 271d 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 94d 271d 0/3 auto-obsoleted due to no activity on 2025/01/22 17:11
upstream INFO: task hung in crda_timeout_work (4) wireless 1 1473d 1473d 0/28 auto-closed as invalid on 2021/05/17 11:47
linux-5.15 INFO: rcu detected stall in worker_thread 1 506d 506d 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 649d 649d 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 990d 1027d 0/28 auto-closed as invalid on 2022/08/31 00:50
upstream INFO: rcu detected stall in worker_thread (9) mm C done 3244 1h16m 497d 0/28 upstream: reported C repro on 2023/10/07 18:33
linux-6.1 INFO: rcu detected stall in worker_thread 6 241d 272d 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 866d 866d 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 245d 250d 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 758d 758d 0/28 auto-obsoleted due to no activity on 2023/04/27 16:37
linux-6.1 INFO: rcu detected stall in worker_thread (2) 1 25d 25d 0/3 upstream: reported on 2025/01/21 18:18
android-5-15 BUG: soft lockup in worker_thread origin:lts C done 1 174d 174d 0/2 auto-obsoleted due to no activity on 2024/12/04 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 (550):
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
2025/02/15 06:20 upstream 04f41cbf03ec 40a34ec9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in crda_timeout_work
2025/02/06 20:07 upstream 92514ef226f5 577d049b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2025/01/27 17:08 upstream c2da8b3f914f d99a33ad .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in crda_timeout_work
2025/01/27 11:32 upstream c2da8b3f914f 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2025/01/27 09:51 upstream c2da8b3f914f 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2025/01/27 05:41 upstream c2da8b3f914f 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in crda_timeout_work
2025/01/27 03:23 upstream c2da8b3f914f 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2025/01/27 00:59 upstream c2da8b3f914f 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in crda_timeout_work
2025/01/26 23:30 upstream c2da8b3f914f 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2025/01/26 21:22 upstream aa22f4da2a46 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in crda_timeout_work
2025/01/26 19:18 upstream aa22f4da2a46 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in crda_timeout_work
2025/01/26 18:07 upstream aa22f4da2a46 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in crda_timeout_work
2025/01/26 12:39 upstream aa22f4da2a46 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2025/01/26 02:45 upstream b46c89c08f41 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in crda_timeout_work
2025/01/26 01:16 upstream b46c89c08f41 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in crda_timeout_work
2025/01/25 23:47 upstream 0f8e26b38d7a 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in crda_timeout_work
2025/01/25 21:41 upstream 0f8e26b38d7a 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in crda_timeout_work
2025/01/25 20:35 upstream 0f8e26b38d7a 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in crda_timeout_work
2025/01/25 18:38 upstream b46c89c08f41 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in crda_timeout_work
2025/01/25 16:01 upstream b46c89c08f41 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in crda_timeout_work
2025/01/25 14:45 upstream b46c89c08f41 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2025/01/25 13:29 upstream b46c89c08f41 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2025/01/25 08:33 upstream 47d65738b975 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2025/01/25 04:12 upstream 0afd22092df4 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in crda_timeout_work
2025/01/25 01:26 upstream 47d65738b975 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in crda_timeout_work
2025/01/24 01:28 upstream 21266b8df522 f6a35ef3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in crda_timeout_work
2025/01/23 20:24 upstream d0d106a2bd21 f6a35ef3 .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
2025/01/27 06:44 upstream c2da8b3f914f 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in crda_timeout_work
2025/01/27 02:12 upstream c2da8b3f914f 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in crda_timeout_work
2025/01/26 15:49 upstream aa22f4da2a46 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in crda_timeout_work
2025/01/26 07:33 upstream 0f8e26b38d7a 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in crda_timeout_work
2025/02/11 02:17 net 011b03359038 43f51a00 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/29 20:20 net 9e6c4e6b605c afe4eff5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/29 17:50 net 9e6c4e6b605c 865ef71e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/28 18:30 net b2aec4efe834 f5427d7c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/28 15:44 net b2aec4efe834 f5427d7c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/28 13:49 net b2aec4efe834 f5427d7c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/28 11:57 net b2aec4efe834 f5427d7c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/28 10:20 net b2aec4efe834 18070896 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/28 09:01 net b2aec4efe834 18070896 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/28 07:00 net b2aec4efe834 18070896 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/28 03:43 net 05d91cdb1f91 18070896 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/27 19:26 net 05d91cdb1f91 18070896 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/27 08:31 net 15a901361ec3 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/26 20:46 net 15a901361ec3 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/26 11:29 net 15a901361ec3 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/26 09:51 net 15a901361ec3 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/26 05:58 net 15a901361ec3 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/26 05:39 net 15a901361ec3 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/26 04:02 net 15a901361ec3 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/25 05:47 net 15a901361ec3 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/01/25 00:04 net 15a901361ec3 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in crda_timeout_work
2025/02/02 12:37 net-next c2933b2befe2 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2025/01/31 02:53 net-next 0ad9617c78ac 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2025/01/30 19:23 net-next 0ad9617c78ac 9c8ab845 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2025/01/29 13:33 net-next 0ad9617c78ac 865ef71e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2025/01/28 17:58 net-next 0ad9617c78ac f5427d7c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2025/01/25 07:05 net-next 0ad9617c78ac 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in crda_timeout_work
2025/01/07 04:57 linux-next 8155b4ef3466 f3558dbf .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.