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=1 node=0 flags=0x0 nice=0 stuck for 30s! Showing busy workqueues and worker pools: workqueue events: flags=0x0 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: nsim_dev_hwstats_traffic_work pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=13 refcnt=14 in-flight: 27:request_firmware_work_func pending: 4*nsim_dev_hwstats_traffic_work, psi_avgs_work, 6*ovs_dp_masks_rebalance, free_obj_work workqueue events_long: flags=0x0 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=4 refcnt=5 pending: 4*defense_work_handler workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=15 refcnt=16 in-flight: 11:kfree_rcu_work ,2141:cfg80211_wiphy_work cfg80211_wiphy_work ,798:cfg80211_wiphy_work cfg80211_wiphy_work pending: toggle_allocation_gate, 2*nsim_dev_trap_report_work, kfree_rcu_work, nsim_dev_trap_report_work, kfree_rcu_work, nsim_dev_trap_report_work, flush_memcg_stats_dwork, nsim_dev_trap_report_work, kfree_rcu_monitor pwq 8: cpus=0-1 flags=0x6 nice=0 active=10 refcnt=11 in-flight: 45:cfg80211_wiphy_work cfg80211_wiphy_work ,4347:cfg80211_wiphy_work cfg80211_wiphy_work ,38:cfg80211_wiphy_work cfg80211_wiphy_work ,333:cfg80211_wiphy_work cfg80211_wiphy_work ,44:linkwatch_event pending: kfree_rcu_monitor workqueue events_power_efficient: flags=0x82 pwq 8: cpus=0-1 flags=0x6 nice=0 active=7 refcnt=8 in-flight: 6498:wg_ratelimiter_gc_entries pending: 2*check_lifetime, gc_worker, 2*neigh_managed_work, do_cache_clean pwq 8: cpus=0-1 flags=0x6 nice=0 active=4 refcnt=5 in-flight: 6496:neigh_periodic_work ,13:reg_check_chans_work pending: 2*check_lifetime workqueue mm_percpu_wq: flags=0x8 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: 820:wb_workfn workqueue dm_bufio_cache: flags=0x8 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: work_fn workqueue mld: flags=0x40008 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=55 in-flight: 6479:mld_ifc_work inactive: 2*mld_dad_work, 5*mld_ifc_work, mld_dad_work, 4*mld_ifc_work, mld_dad_work, 4*mld_ifc_work, mld_dad_work, 3*mld_ifc_work, mld_dad_work, 8*mld_ifc_work, mld_dad_work, mld_ifc_work, mld_dad_work, 11*mld_ifc_work, mld_dad_work, mld_ifc_work, 2*mld_dad_work, 2*mld_ifc_work, mld_dad_work, 2*mld_ifc_work workqueue ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=398 in-flight: 4094(RESCUER):addrconf_dad_work inactive: 387*addrconf_dad_work, 6*addrconf_verify_work workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=48 in-flight: 4174(RESCUER):batadv_dat_purge inactive: batadv_dat_purge, 2*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, 4*batadv_nc_worker, 5*batadv_mcast_mla_update, batadv_purge_orig, 9*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 5*batadv_iv_send_outstanding_bat_ogm_packet, 3*batadv_purge_orig, 4*batadv_tt_purge, batadv_nc_worker, 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-crypt-wg0: flags=0x28 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-crypt-wg1: flags=0x28 pwq 6: cpus=1 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-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=0x28 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=3 refcnt=4 in-flight: 25:wg_packet_tx_worker wg_packet_tx_worker pending: wg_packet_encrypt_worker workqueue wg-kex-wg2: flags=0x24 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 in-flight: 6483:wg_packet_handshake_receive_worker workqueue wg-crypt-wg2: flags=0x28 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_tx_worker, wg_packet_encrypt_worker, wg_packet_decrypt_worker workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg1: flags=0x28 pwq 6: cpus=1 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-kex-wg2: flags=0x24 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_receive_worker workqueue wg-crypt-wg2: flags=0x28 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_decrypt_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=0x28 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-crypt-wg1: flags=0x28 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=0x24 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 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=0x28 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=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=2 refcnt=3 pending: 2*wg_packet_handshake_send_worker pool 2: cpus=0 node=0 flags=0x2 nice=0 hung=0s workers=6 manager: 6480 idle: 10 6484 6482 8 2271 pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=30s workers=9 idle: 6500 6437 6022 6497 6494 pool 8: cpus=0-1 flags=0x6 nice=0 hung=5s workers=13 manager: 6499 Showing backtraces of running workers in stalled CPU-bound worker pools: pool 6: task:kworker/1:5 state:R running task stack:0 pid:6483 tgid:6483 ppid:2 task_flags:0x4208060 flags:0x00000008 Workqueue: wg-kex-wg2 wg_packet_handshake_receive_worker Call trace: __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T) context_switch kernel/sched/core.c:5378 [inline] __schedule+0x1360/0x257c kernel/sched/core.c:6765 preempt_schedule_common+0xe8/0x1dc kernel/sched/core.c:6944 preempt_schedule+0x60/0x80 kernel/sched/core.c:6968 __local_bh_enable_ip+0x244/0x44c kernel/softirq.c:396 local_bh_enable+0x28/0x34 include/linux/bottom_half.h:33 rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline] mod_peer_timer+0x1e8/0x228 drivers/net/wireguard/timers.c:38 wg_timers_session_derived+0x60/0x70 drivers/net/wireguard/timers.c:205 wg_packet_send_handshake_response+0x114/0x258 drivers/net/wireguard/send.c:98 wg_receive_handshake_packet drivers/net/wireguard/receive.c:154 [inline] wg_packet_handshake_receive_worker+0x53c/0xc60 drivers/net/wireguard/receive.c:213 process_one_work+0x810/0x1638 kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3317 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3398 kthread+0x65c/0x7b0 kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 pool 6: task:kworker/1:0 state:R running task stack:0 pid:25 tgid:25 ppid:2 task_flags:0x4208060 flags:0x00000008 Workqueue: wg-crypt-wg0 wg_packet_tx_worker Call trace: __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T) context_switch kernel/sched/core.c:5378 [inline] __schedule+0x1360/0x257c kernel/sched/core.c:6765 preempt_schedule_common+0xe8/0x1dc kernel/sched/core.c:6944 preempt_schedule+0x60/0x80 kernel/sched/core.c:6968 __local_bh_enable_ip+0x244/0x44c kernel/softirq.c:396 local_bh_enable+0x28/0x34 include/linux/bottom_half.h:33 rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline] keep_key_fresh drivers/net/wireguard/send.c:135 [inline] wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline] wg_packet_tx_worker+0x544/0x718 drivers/net/wireguard/send.c:276 process_one_work+0x810/0x1638 kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3317 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3398 kthread+0x65c/0x7b0 kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 pool 6: task:kworker/1:4 state:R running task stack:0 pid:6479 tgid:6479 ppid:2 task_flags:0x4208060 flags:0x00000008 Workqueue: mld mld_ifc_work Call trace: __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T) context_switch kernel/sched/core.c:5378 [inline] __schedule+0x1360/0x257c kernel/sched/core.c:6765 preempt_schedule_irq+0x80/0x188 kernel/sched/core.c:7087 arm64_preempt_schedule_irq arch/arm64/kernel/entry-common.c:301 [inline] __el1_irq arch/arm64/kernel/entry-common.c:563 [inline] el1_interrupt+0x4c/0x68 arch/arm64/kernel/entry-common.c:575 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:580 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:596 __lse__cmpxchg128_mb arch/arm64/include/asm/atomic_lse.h:311 [inline] (P) __cmpxchg128_mb arch/arm64/include/asm/cmpxchg.h:142 [inline] (P) __update_freelist_fast mm/slub.c:658 [inline] (P) slab_update_freelist+0x84/0x118 mm/slub.c:728 (P) __slab_free+0x78/0x278 mm/slub.c:4461 do_slab_free mm/slub.c:4561 [inline] ___cache_free+0x144/0x16c mm/slub.c:4667 qlink_free+0x48/0x94 mm/kasan/quarantine.c:163 qlist_free_all+0x44/0xb8 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x118/0x124 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x2c/0xc4 mm/kasan/common.c:385 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4294 [inline] __kmalloc_node_track_caller_noprof+0x334/0x558 mm/slub.c:4313 kmalloc_reserve+0x144/0x280 net/core/skbuff.c:609 __alloc_skb+0x20c/0x420 net/core/skbuff.c:678 alloc_skb include/linux/skbuff.h:1331 [inline] mld_newpack+0x14c/0xa44 net/ipv6/mcast.c:1788 add_grhead net/ipv6/mcast.c:1899 [inline] add_grec+0x1184/0x1564 net/ipv6/mcast.c:2037 mld_send_cr net/ipv6/mcast.c:2163 [inline] mld_ifc_work+0x6f8/0xd0c net/ipv6/mcast.c:2702 process_one_work+0x810/0x1638 kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3317 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3398 kthread+0x65c/0x7b0 kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 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) net_ratelimit: 84885 callbacks suppressed 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)