BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 52s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 52s!
BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 52s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: psi_avgs_work, regulator_init_complete_work_function
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    in-flight: 13:request_firmware_work_func
    pending: vmstat_shepherd, ovs_dp_masks_rebalance
workqueue events_long: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: defense_work_handler
workqueue events_unbound: flags=0x2
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/512 refcnt=3
    pending: flush_memcg_stats_dwork
workqueue events_power_efficient: flags=0x82
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=6/256 refcnt=8
    pending: fb_flashcursor, neigh_periodic_work, neigh_periodic_work, do_cache_clean, reg_check_chans_work, gc_worker
workqueue mm_percpu_wq: flags=0x8
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: vmstat_update
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: vmstat_update
workqueue writeback: flags=0x4a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
    pending: wb_workfn
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=52s workers=3 idle: 3604 7