BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 50s!
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 44s!
BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 50s!
BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=-20 stuck for 49s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=11/256 refcnt=12
    pending: vmstat_shepherd, psi_avgs_work, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance, l2cap_info_timeout, l2cap_info_timeout, l2cap_info_timeout, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance, l2cap_info_timeout, kfree_rcu_monitor
workqueue events_long: flags=0x0
  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=3/256 refcnt=5
    in-flight: 196:gc_worker
    pending: neigh_periodic_work, neigh_periodic_work
workqueue rcu_gp: flags=0x8
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    in-flight: 24:wait_rcu_exp_gp
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 mld: flags=0x40008
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=4
    pending: mld_ifc_work
    inactive: mld_ifc_work, mld_ifc_work
workqueue ipv6_addrconf: flags=0x40008
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=4
    pending: addrconf_dad_work
    inactive: addrconf_dad_work, addrconf_dad_work
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
workqueue hci1: flags=0xa0012
  pwq 5: cpus=0-1 flags=0x4 nice=-20 active=1/1 refcnt=3
    pending: hci_cmd_timeout
workqueue hci2: flags=0xa0012
  pwq 5: cpus=0-1 flags=0x4 nice=-20 active=1/1 refcnt=3
    pending: hci_cmd_timeout
workqueue hci3: flags=0xa0012
  pwq 5: cpus=0-1 flags=0x4 nice=-20 active=1/1 refcnt=3
    pending: hci_cmd_timeout
workqueue hci4: flags=0xa0012
  pwq 5: cpus=0-1 flags=0x4 nice=-20 active=1/1 refcnt=3
    pending: hci_cmd_timeout
workqueue phy3: flags=0xa0002
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3
    pending: ieee80211_iface_work
workqueue phy4: flags=0xa0002
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3
    pending: ieee80211_iface_work
workqueue phy5: flags=0xa0002
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3
    pending: ieee80211_iface_work
workqueue phy8: flags=0xa0002
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3
    pending: ieee80211_iface_work
pool 2: cpus=1 node=0 flags=0x0 nice=0 hung=0s workers=5 idle: 22 111 3878 3877
pool 4: cpus=0-1 flags=0x4 nice=0 hung=50s workers=6 idle: 175 9 1611 11 33