BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 161s! BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 160s! Showing busy workqueues and worker pools: workqueue events: flags=0x0 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 pending: psi_avgs_work, vmstat_shepherd workqueue events_unbound: flags=0x2 pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 in-flight: 10:flush_memcg_stats_dwork pending: toggle_allocation_gate workqueue events_power_efficient: flags=0x80 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 pending: neigh_managed_work, neigh_periodic_work pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=4/256 refcnt=5 in-flight: 19:gc_worker pending: check_lifetime, neigh_managed_work, neigh_periodic_work workqueue mm_percpu_wq: flags=0x8 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: vmstat_update pwq 0: cpus=0 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 workqueue dm_bufio_cache: flags=0x8 pwq 0: cpus=0 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=161s workers=2 idle: 6 pool 4: cpus=0-1 flags=0x4 nice=0 hung=42s workers=2 idle: 118