BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 62s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=4/256 refcnt=5
    in-flight: 14:psi_avgs_work
    pending: vmstat_shepherd, psi_avgs_work, free_work
workqueue events_power_efficient: flags=0x82
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
    in-flight: 251:gc_worker
workqueue mm_percpu_wq: flags=0x8
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: vmstat_update
workqueue dm_bufio_cache: flags=0x8
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: work_fn
workqueue krxrpcd: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
    pending: rxrpc_peer_keepalive_worker
pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=62s workers=2 idle: 109
pool 4: cpus=0-1 flags=0x4 nice=0 hung=0s workers=8 idle: 4376 1596 4272 4360 145 4306 420