INFO: task kworker/u4:2:127 blocked for more than 140 seconds.
      Not tainted 4.14.305-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u4:2    D28288   127      2 0x80000000
Workqueue: netns cleanup_net