syzbot

BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 230s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 222s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: perf_sched_delayed
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: vmstat_shepherd, psi_avgs_work
workqueue events_unbound: flags=0x2
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/512 refcnt=3
    in-flight: 9:toggle_allocation_gate
workqueue events_power_efficient: flags=0x80
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: neigh_periodic_work
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: neigh_periodic_work, gc_worker, check_lifetime
workqueue mm_percpu_wq: flags=0x8
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    in-flight: 24:vmstat_update
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    in-flight: 67:vmstat_update
workqueue writeback: flags=0x4a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/256 refcnt=5 MAYDAY
    in-flight: 27(RESCUER):wb_workfn
workqueue dm_bufio_cache: flags=0x8
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: work_fn
workqueue ipv6_addrconf: flags=0x40008
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
    pending: addrconf_verify_work
pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=230s workers=2 idle: 5
pool 2: cpus=1 node=0 flags=0x0 nice=0 hung=222s workers=2 idle: 124
pool 4: cpus=0-1 flags=0x5 nice=0 hung=83s workers=2 manager: 360