hrtimer: interrupt took 209930 ns BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 140s! BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 162s! 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: ovs_dp_masks_rebalance pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 pending: psi_avgs_work, vmstat_shepherd workqueue events_long: flags=0x0 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: defense_work_handler workqueue events_unbound: flags=0x2 pwq 4: cpus=0-1 flags=0x5 nice=0 active=2/512 refcnt=5 in-flight: 256:toggle_allocation_gate pending: flush_memcg_stats_dwork workqueue events_power_efficient: flags=0x80 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=5/256 refcnt=6 in-flight: 2990:fb_flashcursor pending: fb_flashcursor, neigh_periodic_work, do_cache_clean, gc_worker pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 in-flight: 1051:neigh_periodic_work pending: check_lifetime, 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=2/256 refcnt=3 pending: lru_add_drain_per_cpu, vmstat_update workqueue writeback: flags=0x4a pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/256 refcnt=4 pending: 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 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 pending: addrconf_verify_work workqueue krxrpcd: flags=0x0 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 pending: rxrpc_peer_keepalive_worker pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=140s workers=2 idle: 5 pool 2: cpus=1 node=0 flags=0x0 nice=0 hung=162s workers=2 idle: 20 pool 4: cpus=0-1 flags=0x5 nice=0 hung=130s workers=3 manager: 154 idle: 1204