BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 197s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 198s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x100
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: vmstat_shepherd
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3
    pending: ovs_dp_masks_rebalance, psi_avgs_work
workqueue events_long: flags=0x100
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: defense_work_handler
workqueue events_unbound: flags=0x2
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
    pending: flush_memcg_stats_dwork
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
    pending: toggle_allocation_gate
workqueue events_unbound: flags=0x2
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
    pending: crng_reseed
workqueue events_power_efficient: flags=0x180
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=4 refcnt=5
    pending: neigh_managed_work, neigh_periodic_work, gc_worker, check_lifetime
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=5 refcnt=6
    pending: crda_timeout_work, neigh_managed_work, do_cache_clean, neigh_periodic_work, reg_check_chans_work
workqueue kvfree_rcu_reclaim: flags=0xa
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
    pending: kfree_rcu_monitor
workqueue mm_percpu_wq: flags=0x8
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: vmstat_update
workqueue writeback: flags=0x4a
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
    pending: wb_workfn
workqueue iou_exit: flags=0x2
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3
    in-flight: 34:io_ring_exit_work
    pending: io_ring_exit_work
workqueue ipv6_addrconf: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4
    pending: addrconf_verify_work
workqueue krxrpcd: flags=0x2001a
  pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4
    in-flight: 52:rxrpc_peer_keepalive_worker
pool 8: cpus=0-1 flags=0x4 nice=0 hung=200s workers=15 idle: 3552 3981 2970 747 13 391 68 3502 4831 3817 37 12 2953 3783
pool 9: cpus=0-1 node=0 flags=0x4 nice=-20 hung=0s workers=2 idle: 5136
Showing backtraces of running workers in stalled CPU-bound worker pools: