BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 32s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=11/256 refcnt=12
    pending: 10*cfg80211_wiphy_work, e1000_watchdog
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: kfree_rcu_monitor
workqueue events_power_efficient: flags=0x80
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: 2*neigh_managed_work
workqueue events_freezable_power_: flags=0x84
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: disk_events_workfn
workqueue rcu_gp: flags=0x8
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    in-flight: 3853:wait_rcu_exp_gp
workqueue mm_percpu_wq: flags=0x8
  pwq 2: cpus=1 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
pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=0s workers=6 idle: 9 7 4365 60 4366
Showing backtraces of running workers in stalled CPU-bound worker pools: