kthread+0x34b/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:299
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 277s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 277s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 272s!
BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 277s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 aclient_loop: send disconnect: Broken pipe