BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 52s!
BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 51s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=8/256 refcnt=9
    pending: ovs_dp_masks_rebalance, vmstat_shepherd, psi_avgs_work, hci_cmd_timeout, hci_cmd_timeout, l2cap_info_timeout, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance
workqueue events_long: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=4/256 refcnt=5
    pending: defense_work_handler, defense_work_handler, defense_work_handler, defense_work_handler
workqueue events_power_efficient: flags=0x82
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=5/256 refcnt=7
    pending: crda_timeout_work, gc_worker, neigh_periodic_work, neigh_periodic_work, do_cache_clean
workqueue writeback: flags=0x4a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
    pending: wb_workfn
workqueue krxrpcd: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=4
    pending: rxrpc_peer_keepalive_worker
    inactive: rxrpc_peer_keepalive_worker, rxrpc_peer_keepalive_worker