BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 59s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=6/256 refcnt=7
    in-flight: 1534:p9_poll_workfn p9_poll_workfn
    pending: p9_read_work, ovs_dp_masks_rebalance, vmstat_shepherd, psi_avgs_work
workqueue events_unbound: flags=0x2
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4
    in-flight: 377:fsnotify_mark_destroy_workfn, 136:fsnotify_connector_destroy_workfn
workqueue rcu_gp: flags=0x8
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: process_srcu
pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=59s workers=3 idle: 7 13
pool 4: cpus=0-1 flags=0x4 nice=0 hung=0s workers=8 idle: 423 153 148 1825 1797 9