bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 33s! Showing busy workqueues and worker pools: workqueue events: flags=0x0 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=12 refcnt=13 pending: vmstat_shepherd, drm_fb_helper_damage_work, 3*nsim_dev_hwstats_traffic_work, debugfs_reap_work, 3*psi_avgs_work, 3*ovs_dp_masks_rebalance pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=4 refcnt=5 in-flight: 24:request_firmware_work_func pending: free_obj_work, 2*nsim_dev_hwstats_traffic_work workqueue events_long: flags=0x0 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=5 refcnt=6 in-flight: 9:defense_work_handler pending: 4*defense_work_handler pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: 3*defense_work_handler workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=9 refcnt=10 in-flight: 307:call_usermodehelper_exec_work ,4880:cfg80211_wiphy_work ,777:linkwatch_event linkwatch_event pending: 2*macvlan_process_broadcast, cfg80211_wiphy_work, 3*macvlan_process_broadcast pwq 8: cpus=0-1 flags=0x6 nice=0 active=17 refcnt=18 in-flight: 12:cfg80211_wiphy_work cfg80211_wiphy_work ,7413:cfg80211_wiphy_work ,15:cfg80211_wiphy_work cfg80211_wiphy_work pending: macvlan_process_broadcast, nsim_dev_trap_report_work, cfg80211_wiphy_work, 2*nsim_dev_trap_report_work, toggle_allocation_gate, 2*nsim_dev_trap_report_work, crng_reseed, flush_memcg_stats_dwork, cfg80211_wiphy_work workqueue events_power_efficient: flags=0x82 pwq 8: cpus=0-1 flags=0x6 nice=0 active=3 refcnt=4 pending: neigh_periodic_work, do_cache_clean, gc_worker pwq 8: cpus=0-1 flags=0x6 nice=0 active=5 refcnt=6 in-flight: 41:neigh_periodic_work pending: fb_flashcursor, wg_ratelimiter_gc_entries, 2*neigh_managed_work workqueue kvfree_rcu_reclaim: flags=0xa pwq 8: cpus=0-1 flags=0x6 nice=0 active=2 refcnt=4 MAYDAY pending: 2*kfree_rcu_work workqueue netns: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=5 in-flight: 42:cleanup_net inactive: 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 workqueue writeback: flags=0x4a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 in-flight: 1620:wb_workfn workqueue ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=5 in-flight: 4197(RESCUER):addrconf_dad_work workqueue krxrpcd: flags=0x2001a pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=5 pending: rxrpc_peer_keepalive_worker inactive: rxrpc_peer_keepalive_worker workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=51 in-flight: 4272(RESCUER):batadv_nc_worker inactive: 5*batadv_tt_purge, batadv_bla_periodic_work, batadv_dat_purge, 2*batadv_bla_periodic_work, batadv_dat_purge, 2*batadv_bla_periodic_work, 3*batadv_dat_purge, batadv_bla_periodic_work, 4*batadv_nc_worker, 6*batadv_mcast_mla_update, 3*batadv_iv_send_outstanding_bat_ogm_packet, 5*batadv_purge_orig, 8*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 3*batadv_iv_send_outstanding_bat_ogm_packet workqueue hci4: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 in-flight: 6534:hci_cmd_sync_work workqueue wg-crypt-wg0: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-crypt-wg2: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker workqueue wg-crypt-wg0: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker workqueue wg-kex-wg2: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker workqueue wg-crypt-wg0: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-crypt-wg2: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_tx_worker, wg_packet_encrypt_worker workqueue loop3: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 pending: loop_workfn pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=33s workers=9 idle: 6584 6598 6537 11 6577 6640 6599 6591 pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=0s workers=5 idle: 6526 26 6650 1817 pool 8: cpus=0-1 flags=0x6 nice=0 hung=0s workers=10 manager: 7416 pool 9: cpus=0-1 node=0 flags=0x4 nice=-20 hung=0s workers=8 idle: 6532 6540 6527 6541 52 6119 6531 Showing backtraces of running workers in stalled CPU-bound worker pools: pool 2: task:kworker/0:0 state:R running task stack:0 pid:9 tgid:9 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events_long defense_work_handler Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5357 [inline] __schedule+0x13b0/0x2864 kernel/sched/core.c:6961 preempt_schedule_common+0xe0/0x194 kernel/sched/core.c:7145 preempt_schedule+0x60/0x80 kernel/sched/core.c:7169 __local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:414 local_bh_enable+0x28/0x34 include/linux/bottom_half.h:33 update_defense_level+0x5ec/0x984 net/netfilter/ipvs/ip_vs_ctl.c:210 defense_work_handler+0x30/0xdc net/netfilter/ipvs/ip_vs_ctl.c:235 process_one_work+0x7e8/0x155c kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3400 kthread+0x5fc/0x75c kernel/kthread.c:463 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844 bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)