INFO: task hung in switchdev_deferred_process

Kernel	Title	Rank 🛈	Repro	Cause bisect	Count	Last	Reported	Patched	Status
upstream	INFO: task hung in switchdev_deferred_process_work (2) net	1	C	inconclusive	1226	391d	1833d	26/29	fixed on 2024/07/09 19:14
linux-6.6	INFO: task hung in switchdev_deferred_process_work	1			1	12d	12d	0/2	upstream: reported on 2025/07/23 04:22
upstream	INFO: task hung in switchdev_deferred_process_work net	1			35	2123d	2660d	0/29	closed as invalid on 2019/10/23 07:26
upstream	INFO: task hung in switchdev_deferred_process_work (3) net	1	syz	inconclusive	497	3d20h	360d	0/29	upstream: reported syz repro on 2024/08/08 21:14
linux-5.15	INFO: task hung in switchdev_deferred_process_work	1			1	845d	845d	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	1			95	897d	1975d	0/1	upstream: reported on 2020/03/08 04:06
linux-5.15	INFO: task hung in switchdev_deferred_process_work (2)	1			36	498d	570d	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)	1			8	283d	425d	0/3	auto-obsoleted due to no activity on 2025/02/02 03:46
linux-6.1	INFO: task hung in switchdev_deferred_process_work	1			8	390d	553d	0/3	auto-obsoleted due to no activity on 2024/10/18 09:59

INFO: task kworker/1:1:23 blocked for more than 140 seconds. Not tainted 4.14.277-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/1:1 D26720 23 2 0x80000000 Workqueue: events switchdev_deferred_process_work Call Trace: context_switch kernel/sched/core.c:2811 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3387 schedule+0x8d/0x1b0 kernel/sched/core.c:3431 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3489 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x669/0x1310 kernel/locking/mutex.c:893 switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:150 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117