BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 281s! BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 280s! Showing busy workqueues and worker pools: workqueue events: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=14 refcnt=15 pending: 2*nsim_dev_hwstats_traffic_work, psi_avgs_work, vmstat_shepherd, psi_avgs_work, 3*ovs_dp_masks_rebalance, 3*psi_avgs_work, ovs_dp_masks_rebalance, rht_deferred_worker, switchdev_deferred_process_work pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=11 refcnt=12 pending: 5*nsim_dev_hwstats_traffic_work, psi_avgs_work, 3*ovs_dp_masks_rebalance, psi_avgs_work, ovs_dp_masks_rebalance workqueue events_highpri: flags=0x110 pwq 7: cpus=1 node=0 flags=0x0 nice=-20 active=1 refcnt=2 pending: fill_page_cache_func workqueue events_long: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=4 refcnt=5 pending: 4*br_fdb_cleanup pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=13 refcnt=14 pending: br_fdb_cleanup, 8*defense_work_handler, 4*br_fdb_cleanup workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: toggle_allocation_gate, flush_memcg_stats_dwork workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x4 nice=0 active=23 refcnt=24 pending: 3*nsim_dev_trap_report_work, cfg80211_wiphy_work, nsim_dev_trap_report_work, linkwatch_event, bpf_map_free_deferred, macvlan_process_broadcast, 2*cfg80211_wiphy_work, crng_reseed, idle_cull_fn, 11*macvlan_process_broadcast pwq 8: cpus=0-1 flags=0x4 nice=0 active=11 refcnt=12 pending: nsim_dev_trap_report_work, 3*cfg80211_wiphy_work, 2*nsim_dev_trap_report_work, 2*idle_cull_fn, cfg80211_wiphy_work, 2*idle_cull_fn workqueue events_power_efficient: flags=0x180 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=8 refcnt=9 pending: 2*neigh_managed_work, neigh_periodic_work, do_cache_clean, neigh_periodic_work, 3*check_lifetime pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=7 refcnt=8 pending: wg_ratelimiter_gc_entries, gc_worker, 5*check_lifetime workqueue kvfree_rcu_reclaim: flags=0xa pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: kfree_rcu_monitor pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: kfree_rcu_monitor workqueue netns: flags=0x6000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 in-flight: 12:cleanup_net workqueue mm_percpu_wq: flags=0x8 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: vmstat_update pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: vmstat_update workqueue writeback: flags=0x4a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wb_workfn workqueue kblockd: flags=0x18 pwq 7: cpus=1 node=0 flags=0x0 nice=-20 active=1 refcnt=2 pending: blk_mq_requeue_work workqueue ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=11 pending: addrconf_verify_work inactive: 7*addrconf_verify_work workqueue krxrpcd: flags=0x2001a pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=11 pending: rxrpc_peer_keepalive_worker inactive: 7*rxrpc_peer_keepalive_worker workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=47 pending: batadv_mcast_mla_update inactive: 6*batadv_mcast_mla_update, 5*batadv_purge_orig, 3*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 3*batadv_tt_purge, 5*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge, 2*batadv_bla_periodic_work, 2*batadv_dat_purge, 2*batadv_bla_periodic_work, 3*batadv_dat_purge, batadv_bla_periodic_work, 3*batadv_tt_purge, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material workqueue wg-kex-wg2: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=3 refcnt=4 pending: 2*wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_queued_expired_zero_key_material workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material workqueue wg-kex-wg2: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=3 refcnt=4 pending: 2*wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=3 refcnt=4 pending: 2*wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_queued_expired_zero_key_material workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material workqueue wg-kex-wg2: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=4 refcnt=5 pending: 2*wg_packet_handshake_send_worker, 2*wg_queued_expired_zero_key_material workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=3 refcnt=4 pending: 2*wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg0: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-kex-wg2: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-kex-wg2: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg0: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-kex-wg2: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_tx_worker, wg_packet_encrypt_worker workqueue hci4: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 in-flight: 5147:hci_cmd_timeout workqueue hci4: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 in-flight: 5834:hci_cmd_sync_work workqueue bond0: flags=0x2000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: bond_netdev_notify_work pool 8: cpus=0-1 flags=0x4 nice=0 hung=283s workers=23 idle: 4578 60 3968 7380 6148 3665 79 6125 3491 1097 3840 6268 4488 4347 6117 5996 3421 1947 276 37 13 49 pool 9: cpus=0-1 node=0 flags=0x4 nice=-20 hung=26s workers=11 idle: 5844 5840 52 5847 8375 5850 5846 5849 5837 Showing backtraces of running workers in stalled CPU-bound worker pools: