INFO: task kworker/u4:4:334 blocked for more than 143 seconds.
      Not tainted 5.15.161-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:4    state:D stack:    0 pid:  334 ppid:     2 flags:0x00000008
Workqueue: netns cleanup_net
Call trace:
 __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0xf10/0x1e48 kernel/sched/core.c:6376
 schedule+0x11c/0x1c8 kernel/sched/core.c:6459
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6518
 __mutex_lock_common+0xba0/0x2154 kernel/locking/mutex.c:669
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743
 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72
 netdev_run_todo+0x90c/0xae0 net/core/dev.c:10656
 rtnl_unlock+0x14/0x20 net/core/rtnetlink.c:112
 default_device_exit_batch+0x4c4/0x520 net/core/dev.c:11628
 ops_exit_list net/core/net_namespace.c:177 [inline]
 cleanup_net+0x5e0/0x9bc net/core/net_namespace.c:599
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310
 worker_thread+0x910/0x1034 kernel/workqueue.c:2457
 kthread+0x37c/0x45c kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
INFO: task kworker/0:11:5984 blocked for more than 143 seconds.
      Not tainted 5.15.161-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:11    state:D stack:    0 pid: 5984 ppid:     2 flags:0x00000008
Workqueue: events linkwatch_event
Call trace: