syzbot


INFO: task hung in switchdev_deferred_process_work (3)

Status: upstream: reported on 2024/08/08 21:14
Subsystems: net
[Documentation on labels]
Reported-by: syzbot+d6bbe0f5705cb8a5aa2b@syzkaller.appspotmail.com
First crash: 63d, last: 2d10h
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [net?] INFO: task hung in switchdev_deferred_process_work (3) 0 (1) 2024/08/08 21:14
Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in switchdev_deferred_process_work (2) net C inconclusive 1226 65d 1507d 26/27 fixed on 2024/07/09 19:14
upstream INFO: task hung in switchdev_deferred_process_work net 35 1797d 2334d 0/27 closed as invalid on 2019/10/23 07:26
linux-5.15 INFO: task hung in switchdev_deferred_process_work 1 519d 519d 0/3 auto-obsoleted due to no activity on 2023/08/10 05:46
linux-4.19 INFO: task hung in switchdev_deferred_process_work 95 571d 1649d 0/1 upstream: reported on 2020/03/08 04:06
linux-4.14 INFO: task hung in switchdev_deferred_process_work 1 859d 859d 0/1 auto-obsoleted due to no activity on 2022/09/03 16:45
linux-5.15 INFO: task hung in switchdev_deferred_process_work (2) 36 172d 244d 0/3 auto-obsoleted due to no activity on 2024/06/01 16:21
linux-5.15 INFO: task hung in switchdev_deferred_process_work (3) 6 4d08h 100d 0/3 upstream: reported on 2024/06/04 13:11
linux-6.1 INFO: task hung in switchdev_deferred_process_work 8 64d 227d 0/3 upstream: reported on 2024/01/29 04:44

Sample crash report:
INFO: task kworker/0:3:5266 blocked for more than 143 seconds.
      Not tainted 6.11.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:3     state:D stack:22736 pid:5266  tgid:5266  ppid:2      flags:0x00004000
Workqueue: events switchdev_deferred_process_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
 switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd10 kernel/workqueue.c:3389

Crashes (56):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/09/09 15:38 upstream da3ea35007d0 dd9c7e97 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in switchdev_deferred_process_work
2024/08/31 13:13 upstream 1934261d8974 1eda0d14 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/08/22 11:27 upstream 872cf28b8df9 ca02180f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in switchdev_deferred_process_work
2024/08/19 16:55 upstream 47ac09b91bef 9f0ab3fb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in switchdev_deferred_process_work
2024/08/19 10:50 upstream 47ac09b91bef dbc93b08 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/08/19 02:22 upstream c3f2d783a459 dbc93b08 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in switchdev_deferred_process_work
2024/08/18 12:26 upstream df6cbc62cc9b dbc93b08 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in switchdev_deferred_process_work
2024/08/08 08:56 upstream 6a0e38264012 de12cf65 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in switchdev_deferred_process_work
2024/08/08 08:42 upstream 6a0e38264012 de12cf65 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in switchdev_deferred_process_work
2024/08/08 05:50 upstream 6a0e38264012 de12cf65 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in switchdev_deferred_process_work
2024/08/07 11:55 upstream d4560686726f 7b2f2f35 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/08/06 21:05 upstream eb5e56d14912 e1bdb00a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in switchdev_deferred_process_work
2024/08/05 13:51 upstream de9c2c66ad8e e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in switchdev_deferred_process_work
2024/08/05 12:15 upstream de9c2c66ad8e e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/08/05 07:05 upstream de9c2c66ad8e 1786a2a8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/08/04 21:09 upstream a5dbd76a8942 1786a2a8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in switchdev_deferred_process_work
2024/08/03 09:48 upstream 17712b7ea075 53683cf2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/08/02 12:23 upstream c0ecd6388360 1e9c4cf3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/07/29 06:07 upstream e172f1e90688 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in switchdev_deferred_process_work
2024/07/28 19:42 upstream e172f1e90688 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in switchdev_deferred_process_work
2024/07/27 12:00 upstream 2f8c4f506285 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/07/25 07:21 upstream c33ffdb70cc6 b24754ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in switchdev_deferred_process_work
2024/07/24 03:18 upstream 28bbe4ea686a 57b2edb1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in switchdev_deferred_process_work
2024/07/22 14:17 upstream 933069701c1b f063dfd9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in switchdev_deferred_process_work
2024/07/22 01:56 upstream 7846b618e0a4 b88348e9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/07/20 13:49 upstream d7e78951a8b8 b88348e9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in switchdev_deferred_process_work
2024/07/20 08:35 upstream d7e78951a8b8 b88348e9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in switchdev_deferred_process_work
2024/07/19 07:33 upstream 68b59730459e ee4e11c8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/07/12 11:44 upstream 43db1e03c086 eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/07/11 21:43 upstream 9d9a2f29aefd c699c2eb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in switchdev_deferred_process_work
2024/07/11 12:17 upstream a19ea421490d c699c2eb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in switchdev_deferred_process_work
2024/09/04 07:48 upstream 88fac17500f4 9d47f20a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in switchdev_deferred_process_work
2024/08/06 12:12 upstream b446a2dae984 e1bdb00a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in switchdev_deferred_process_work
2024/08/04 00:38 upstream 17712b7ea075 1786a2a8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in switchdev_deferred_process_work
2024/07/30 11:14 upstream 94ede2a3e913 a4e01e1e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in switchdev_deferred_process_work
2024/07/29 09:33 upstream dc1c8034e31b 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in switchdev_deferred_process_work
2024/07/29 05:12 upstream 5437f30d3458 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in switchdev_deferred_process_work
2024/07/23 10:46 upstream 66ebbdfdeb09 708c10c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in switchdev_deferred_process_work
2024/09/10 03:15 net b3c9e65eb227 dd9c7e97 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/09/08 05:39 net d759ee240d3c 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/07/23 19:11 net cc73bbab4b1f 708c10c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/07/23 11:16 net cc73bbab4b1f 708c10c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/07/11 08:00 net 76a0a3f9cc2f c699c2eb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/09/02 11:07 net-next 221f9cce949a 1eda0d14 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/08/29 23:10 net-next 0a8b08c554da 54fe8471 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/08/29 15:17 net-next e24a6c874601 ef3de9e8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/08/26 05:25 net-next 7d3aed652d09 d7d32352 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/08/25 04:24 net-next 7d3aed652d09 d7d32352 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/08/14 03:40 net-next dd1bf9f9df15 bde81f6f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/08/10 06:46 net-next 600a91931057 6f4edef4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/07/28 07:51 net-next 1722389b0d86 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in switchdev_deferred_process_work
2024/08/03 04:20 linux-next 931a3b3bccc9 53683cf2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in switchdev_deferred_process_work
2024/07/30 00:28 linux-next 931a3b3bccc9 5187fc86 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in switchdev_deferred_process_work
2024/07/29 08:21 linux-next 931a3b3bccc9 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in switchdev_deferred_process_work
2024/07/27 19:40 linux-next 668d33c9ff92 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in switchdev_deferred_process_work
2024/07/27 07:22 linux-next 668d33c9ff92 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in switchdev_deferred_process_work
* Struck through repros no longer work on HEAD.