BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 143s! BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 141s! 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: kfree_rcu_monitor pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 in-flight: 173:kfree_rcu_monitor pending: kfree_rcu_monitor workqueue events: flags=0x0 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=11/256 refcnt=12 pending: free_obj_work, 2*nsim_dev_hwstats_traffic_work, psi_avgs_work, 3*ovs_dp_masks_rebalance, switchdev_deferred_process_work, 3*rht_deferred_worker pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=10/256 refcnt=11 pending: 2*nsim_dev_hwstats_traffic_work, 2*psi_avgs_work, vmstat_shepherd, 2*psi_avgs_work, 2*ovs_dp_masks_rebalance, ima_keys_handler workqueue events_highpri: flags=0x10 pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=2/256 refcnt=3 in-flight: 5918:snd_vmidi_output_work snd_vmidi_output_work workqueue events_long: flags=0x0 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=7/256 refcnt=8 pending: defense_work_handler, 3*br_multicast_gc_work, 3*br_fdb_cleanup pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=6/256 refcnt=7 pending: 4*defense_work_handler, br_multicast_gc_work, br_fdb_cleanup workqueue events_unbound: flags=0x2 pwq 4: cpus=0-1 flags=0x4 nice=0 active=9/512 refcnt=10 pending: 4*cfg80211_wiphy_work, macvlan_process_broadcast, crng_reseed, 2*macvlan_process_broadcast, idle_cull_fn pwq 4: cpus=0-1 flags=0x4 nice=0 active=17/512 refcnt=18 pending: 4*cfg80211_wiphy_work, toggle_allocation_gate, 4*nsim_dev_trap_report_work, flush_memcg_stats_dwork, 4*macvlan_process_broadcast, 2*idle_cull_fn, macvlan_process_broadcast workqueue events_freezable: flags=0x4 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: update_balloon_stats_func workqueue events_power_efficient: flags=0x80 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 pending: wg_ratelimiter_gc_entries, do_cache_clean, gc_worker pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=6/256 refcnt=7 pending: 2*neigh_managed_work, 2*neigh_periodic_work, check_lifetime, hash_netport4_gc 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=2 pending: wb_workfn pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/256 refcnt=3 pending: 2*wb_workfn workqueue kblockd: flags=0x18 pwq 3: cpus=1 node=0 flags=0x0 nice=-20 active=3/256 refcnt=4 pending: 2*blk_mq_timeout_work, blk_mq_requeue_work 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=0xe000a pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=8 pending: addrconf_verify_work inactive: 4*addrconf_verify_work workqueue krxrpcd: flags=0xa001a pwq 5: cpus=0-1 node=0 flags=0x4 nice=-20 active=1/1 refcnt=8 pending: rxrpc_peer_keepalive_worker inactive: 4*rxrpc_peer_keepalive_worker workqueue krdsd: flags=0xe000a pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=7 pending: rds_connect_worker inactive: 3*rds_connect_worker workqueue bat_events: flags=0xe000a pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=39 pending: batadv_nc_worker inactive: 3*batadv_nc_worker, 7*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, batadv_iv_send_outstanding_bat_ogm_packet, 3*batadv_purge_orig, 4*batadv_iv_send_outstanding_bat_ogm_packet, 4*batadv_mcast_mla_update, 4*batadv_tt_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, 2*batadv_dat_purge, 2*batadv_bla_periodic_work, batadv_dat_purge workqueue wg-crypt-wg0: flags=0x28 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-kex-wg1: flags=0x6 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_decrypt_worker workqueue wg-kex-wg2: flags=0x6 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=0x28 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg0: flags=0x28 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-kex-wg0: flags=0x6 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg0: flags=0x28 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg2: flags=0x28 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg0: flags=0x28 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-kex-wg1: flags=0x6 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg1: flags=0x28 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg2: flags=0x28 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-kex-wg2: flags=0x6 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=0x28 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: wg_packet_encrypt_worker workqueue bond1: flags=0xa000a pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=5 pending: bond_mii_monitor inactive: bond_alb_monitor workqueue bond1: flags=0xa000a pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=5 pending: bond_alb_monitor inactive: bond_mii_monitor workqueue bond1: flags=0xa000a pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=5 pending: bond_mii_monitor inactive: bond_alb_monitor workqueue bond2: flags=0xa000a pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=5 pending: bond_mii_monitor inactive: bond_alb_monitor workqueue bond3: flags=0xa000a pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=5 pending: bond_mii_monitor inactive: bond_alb_monitor workqueue bond4: flags=0xa000a pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=5 pending: bond_alb_monitor inactive: bond_mii_monitor pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=144s workers=8 idle: 9 8 5781 5855 5823 5824 5845 pool 1: cpus=0 node=0 flags=0x0 nice=-20 hung=0s workers=3 idle: 10 56 Showing backtraces of running workers in stalled CPU-bound worker pools: