bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:e6:92:94:33:d6, vlan:0) BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 40s! BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 33s! Showing busy workqueues and worker pools: workqueue events: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=7 refcnt=8 pending: 2*nsim_dev_hwstats_traffic_work, drm_fb_helper_damage_work, psi_avgs_work, vmstat_shepherd, 2*ovs_dp_masks_rebalance pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=9 refcnt=10 pending: reg_todo, 3*nsim_dev_hwstats_traffic_work, 4*ovs_dp_masks_rebalance, psi_avgs_work 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 in-flight: 6669:defense_work_handler pending: 3*defense_work_handler pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: 2*defense_work_handler workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=4 refcnt=5 in-flight: 6816:cfg80211_wiphy_work cfg80211_wiphy_work pending: flush_memcg_stats_dwork, toggle_allocation_gate pwq 8: cpus=0-1 flags=0x6 nice=0 active=6 refcnt=7 in-flight: 15:cfg80211_wiphy_work cfg80211_wiphy_work ,6817:cfg80211_wiphy_work cfg80211_wiphy_work ,2022:cfg80211_wiphy_work cfg80211_wiphy_work workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=5 refcnt=6 in-flight: 6818:nsim_dev_trap_report_work ,544:nsim_dev_trap_report_work ,6814:nsim_dev_trap_report_work pending: 2*nsim_dev_trap_report_work workqueue events_power_efficient: flags=0x182 pwq 8: cpus=0-1 flags=0x6 nice=0 active=5 refcnt=6 in-flight: 42:neigh_periodic_work ,6819:reg_check_chans_work ,6813:gc_worker pending: 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_monitor 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=0x6 nice=0 active=1 refcnt=2 in-flight: 41:wb_workfn workqueue kblockd: flags=0x18 pwq 7: cpus=1 node=0 flags=0x0 nice=-20 active=1 refcnt=2 pending: blk_mq_timeout_work workqueue mld: flags=0x40108 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=154 in-flight: 6655:mld_ifc_work inactive: 8*mld_ifc_work, mld_dad_work, mld_ifc_work, mld_dad_work, 2*mld_ifc_work, mld_dad_work, 7*mld_ifc_work, 2*mld_dad_work, 5*mld_ifc_work, mld_dad_work, 3*mld_ifc_work, mld_dad_work, 3*mld_ifc_work, mld_dad_work, mld_ifc_work, 3*mld_dad_work, 5*mld_ifc_work, 2*mld_dad_work, 2*mld_ifc_work, 2*mld_dad_work, 7*mld_ifc_work, 2*mld_dad_work, 8*mld_ifc_work, 2*mld_dad_work, mld_ifc_work, 2*mld_dad_work, 6*mld_ifc_work, mld_dad_work, 17*mld_ifc_work, mld_dad_work, mld_ifc_work, mld_dad_work, 19*mld_ifc_work, 2*mld_dad_work, 3*mld_ifc_work, mld_dad_work, 9*mld_ifc_work, mld_dad_work, 16*mld_ifc_work workqueue ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=413 in-flight: 4516:addrconf_dad_work inactive: 409*addrconf_dad_work workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=44 in-flight: 4310(RESCUER):batadv_tt_purge inactive: batadv_tt_purge, 4*batadv_purge_orig, 12*batadv_iv_send_outstanding_bat_ogm_packet, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, 5*batadv_mcast_mla_update, batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 2*batadv_iv_send_outstanding_bat_ogm_packet, 3*batadv_tt_purge workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-kex-wg0: flags=0x124 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 in-flight: 6821:wg_packet_handshake_receive_worker wg_packet_handshake_receive_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_receive_worker workqueue wg-crypt-wg0: 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=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker workqueue wg-kex-wg0: flags=0x124 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_receive_worker workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x6 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_encrypt_worker, wg_packet_tx_worker workqueue wg-kex-wg1: flags=0x124 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_receive_worker workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 in-flight: 245: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=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker workqueue wg-kex-wg1: flags=0x124 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3 in-flight: 26:wg_packet_handshake_receive_worker pending: wg_packet_handshake_receive_worker workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 in-flight: 12: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=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker workqueue wg-kex-wg2: flags=0x124 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 in-flight: 11:wg_packet_handshake_receive_worker wg_packet_handshake_receive_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3 in-flight: 6571:wg_packet_handshake_receive_worker wg_packet_handshake_receive_worker workqueue wg-crypt-wg2: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_decrypt_worker workqueue wg-kex-wg2: flags=0x124 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_receive_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_receive_worker workqueue wg-kex-wg2: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 in-flight: 6820:wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encrypt_worker pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=4s workers=6 idle: 2362 6600 9 pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=40s workers=9 idle: 1857 6660 24 6766 6801 6764 pool 8: cpus=0-1 flags=0x6 nice=0 hung=0s workers=16 manager: 6822 Showing backtraces of running workers in stalled CPU-bound worker pools: pool 6: task:kworker/1:3 state:R running task stack:0 pid:6571 tgid:6571 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: wg-kex-wg2 wg_packet_handshake_receive_worker Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5325 [inline] __schedule+0x13b0/0x2864 kernel/sched/core.c:6929 preempt_schedule_common+0xe0/0x194 kernel/sched/core.c:7113 preempt_schedule+0x60/0x80 kernel/sched/core.c:7137 __local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:457 __raw_read_unlock_bh include/linux/rwlock_api_smp.h:257 [inline] _raw_read_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:284 wg_socket_send_skb_to_peer+0x154/0x1a4 drivers/net/wireguard/socket.c:184 wg_socket_send_buffer_to_peer+0x104/0x168 drivers/net/wireguard/socket.c:200 wg_packet_send_handshake_response+0x15c/0x24c drivers/net/wireguard/send.c:103 wg_receive_handshake_packet drivers/net/wireguard/receive.c:154 [inline] wg_packet_handshake_receive_worker+0x4f8/0xbf8 drivers/net/wireguard/receive.c:213 process_one_work+0x7e8/0x155c kernel/workqueue.c:3263 process_scheduled_works kernel/workqueue.c:3346 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3427 kthread+0x5fc/0x75c kernel/kthread.c:463 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844 pool 6: task:kworker/1:4 state:R running task stack:0 pid:6655 tgid:6655 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: mld mld_ifc_work Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5325 [inline] __schedule+0x13b0/0x2864 kernel/sched/core.c:6929 preempt_schedule_common+0xe0/0x194 kernel/sched/core.c:7113 preempt_schedule+0x60/0x80 kernel/sched/core.c:7137 __local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:457 __raw_write_unlock_bh include/linux/rwlock_api_smp.h:281 [inline] _raw_write_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:366 ___neigh_create+0x1a4c/0x21e8 net/core/neighbour.c:725 __neigh_create+0x80/0xa0 net/core/neighbour.c:744 ip6_finish_output2+0x149c/0x1a78 net/ipv6/ip6_output.c:128 __ip6_finish_output net/ipv6/ip6_output.c:-1 [inline] ip6_finish_output+0x418/0x7b4 net/ipv6/ip6_output.c:220 NF_HOOK_COND include/linux/netfilter.h:307 [inline] ip6_output+0x2c8/0x640 net/ipv6/ip6_output.c:247 dst_output include/net/dst.h:464 [inline] NF_HOOK+0x15c/0x430 include/linux/netfilter.h:318 mld_sendpack+0x7fc/0x100c net/ipv6/mcast.c:1855 mld_send_cr net/ipv6/mcast.c:2154 [inline] mld_ifc_work+0x770/0xc38 net/ipv6/mcast.c:2693 process_one_work+0x7e8/0x155c kernel/workqueue.c:3263 process_scheduled_works kernel/workqueue.c:3346 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3427 kthread+0x5fc/0x75c kernel/kthread.c:463 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844 pool 6: task:kworker/1:1 state:R running task stack:0 pid:26 tgid:26 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: wg-kex-wg1 wg_packet_handshake_receive_worker Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5325 [inline] __schedule+0x13b0/0x2864 kernel/sched/core.c:6929 preempt_schedule_common+0xe0/0x194 kernel/sched/core.c:7113 preempt_schedule+0x60/0x80 kernel/sched/core.c:7137 __local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:457 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline] _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:396 [inline] ptr_ring_consume_bh include/linux/ptr_ring.h:377 [inline] wg_packet_handshake_receive_worker+0xb6c/0xbf8 drivers/net/wireguard/receive.c:212 process_one_work+0x7e8/0x155c kernel/workqueue.c:3263 process_scheduled_works kernel/workqueue.c:3346 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3427 kthread+0x5fc/0x75c kernel/kthread.c:463 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844 net_ratelimit: 125957 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:e6:92:94:33:d6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:e6:92:94:33:d6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:e6:92:94:33:d6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:e6:92:94:33:d6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:e6:92:94:33:d6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:e6:92:94:33:d6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:e6:92:94:33:d6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:e6:92:94:33:d6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:e6:92:94:33:d6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:e6:92:94:33:d6, vlan:0)