BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 46s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=5/256 refcnt=6
    in-flight: 3603:p9_poll_workfn p9_poll_workfn
    pending: p9_read_work, vmstat_shepherd, ovs_dp_masks_rebalance
workqueue events_unbound: flags=0x2
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=4/512 refcnt=6
    in-flight: 533:fsnotify_mark_destroy_workfn fsnotify_mark_destroy_workfn, 136:fsnotify_connector_destroy_workfn 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
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 krxrpcd: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
    pending: rxrpc_peer_keepalive_worker
pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=46s workers=3 idle: 13 7
pool 4: cpus=0-1 flags=0x4 nice=0 hung=0s workers=6 idle: 9 847 148 153