warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow
warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 50s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=8/256 refcnt=9
    pending: 8*cfg80211_wiphy_work
workqueue events_freezable_power_: flags=0x84
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    in-flight: 30101:disk_events_workfn 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: 18777:wait_rcu_exp_gp
workqueue netns: flags=0xe000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3
    in-flight: 20834:cleanup_net
workqueue mm_percpu_wq: flags=0x8
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: vmstat_update
pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=0s workers=4 idle: 36701 23167
pool 4: cpus=0-1 flags=0x4 nice=0 hung=0s workers=7 idle: 47 19973 25315 29850 29370 25485
Showing backtraces of running workers in stalled CPU-bound worker pools: