BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 216s!
Kernel panic - not syncing: hung_task: blocked tasks
CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.71+ #8
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xb9/0x11b lib/dump_stack.c:53
 panic+0x1bf/0x3a4 kernel/panic.c:181
 check_hung_uninterruptible_tasks kernel/hung_task.c:197 [inline]
 watchdog+0x585/0xa70 kernel/hung_task.c:252
 kthread+0x348/0x420 kernel/kthread.c:232
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:402
Kernel Offset: 0x10600000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
Rebooting in 86400 seconds..