BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 42s!
BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 41s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=4/256
    pending: vmstat_shepherd, perf_sched_delayed, cache_reap, check_corruption
workqueue events_power_efficient: flags=0x80
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
    pending: neigh_periodic_work
workqueue mm_percpu_wq: flags=0x8
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
    pending: vmstat_update
workqueue writeback: flags=0x4e
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/256
    pending: wb_workfn, wb_workfn
workqueue kblockd: flags=0x18
  pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=4/256
    pending: blk_mq_timeout_work, blk_mq_timeout_work, blk_mq_timeout_work, blk_timeout_work