BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 44s!
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 42s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 44s!
BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 44s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=9/256 refcnt=10
    in-flight: 1529:request_firmware_work_func
    pending: psi_avgs_work, hci_cmd_timeout, hci_cmd_timeout, l2cap_info_timeout, ovs_dp_masks_rebalance, l2cap_info_timeout, l2cap_info_timeout, l2cap_info_timeout
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=11/256 refcnt=12
    pending: kfree_rcu_monitor, ovs_dp_masks_rebalance, vmstat_shepherd, hci_cmd_timeout, hci_cmd_timeout, hci_cmd_timeout, l2cap_info_timeout, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance
workqueue events_long: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: defense_work_handler, defense_work_handler, defense_work_handler
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: defense_work_handler, defense_work_handler, 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 rcu_gp: flags=0x8
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    in-flight: 3981:wait_rcu_exp_gp
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 writeback: flags=0x4a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
    pending: wb_workfn
workqueue kblockd: flags=0x18
  pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2
    pending: blk_mq_timeout_work
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 mld: flags=0x40008
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
    pending: mld_dad_work
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=8
    pending: mld_ifc_work
    inactive: mld_ifc_work, mld_dad_work, mld_dad_work, mld_ifc_work, mld_ifc_work, mld_dad_work
workqueue krxrpcd: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
    pending: rxrpc_peer_keepalive_worker
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=6
    pending: rxrpc_peer_keepalive_worker
    inactive: rxrpc_peer_keepalive_worker, rxrpc_peer_keepalive_worker, rxrpc_peer_keepalive_worker, rxrpc_peer_keepalive_worker
pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=45s workers=4 idle: 13 7 1952
pool 2: cpus=1 node=0 flags=0x0 nice=0 hung=45s workers=4 idle: 3766 21 25