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