Buffer I/O error on dev loop0, logical block 0, async page read
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 60s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 55s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256
    pending: linkwatch_event, perf_sched_delayed, cache_reap
workqueue events_power_efficient: flags=0x80
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256
    pending: do_cache_clean, neigh_periodic_work
workqueue mm_percpu_wq: flags=0x8
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256
    pending: vmstat_update
workqueue netns: flags=0xe000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1
    in-flight: 5:cleanup_net
workqueue kblockd: flags=0x18
  pwq 3: cpus=1 node=0 flags=0x0 nice=-20 active=2/256
    pending: blk_mq_timeout_work, blk_mq_timeout_work
pool 4: cpus=0-1 flags=0x4 nice=0 hung=1s workers=9 idle: 62 21 3466 137 4171 4176 3649 6055