INFO: task kworker/u8:4:7079 blocked for more than 143 seconds.
      Not tainted 6.16.0-rc5-syzkaller-00159-g47c84997c686-dirty #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:4    state:D stack:25960 pid:7079  tgid:7079  ppid:2      task_flags:0x4208060 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
 <TASK>
 __schedule+0x16f5/0x4d00
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_write_slowpath+0xbec/0x1030
 down_write+0x1ab/0x1f0
 rdma_dev_exit_net+0x8c/0x340
 ops_undo_list+0x49a/0x990
 cleanup_net+0x4c5/0x800
