bridge0: received packet on veth0_to_bridge with own address as source address (addr:12:31:6d:a4:0e:d3, vlan:0) 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=0x2 nice=0 stuck for 39s! Showing busy workqueues and worker pools: workqueue events: flags=0x0 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 in-flight: 10:reg_todo pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=14 refcnt=15 in-flight: 2876:nsim_fib_event_work ,6635:nsim_fib_event_work pending: 4*nsim_dev_hwstats_traffic_work, 3*psi_avgs_work, 4*ovs_dp_masks_rebalance, free_obj_work workqueue events_long: flags=0x0 pwq 6: cpus=1 node=0 flags=0x2 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=19 refcnt=20 in-flight: 5371:cfg80211_wiphy_work ,1992:cfg80211_wiphy_work cfg80211_wiphy_work ,635:cfg80211_wiphy_work cfg80211_wiphy_work ,12:cfg80211_wiphy_work cfg80211_wiphy_work ,7236:cfg80211_wiphy_work cfg80211_wiphy_work ,8192:nsim_dev_trap_report_work pending: flush_memcg_stats_dwork, cfg80211_wiphy_work, 4*nsim_dev_trap_report_work, toggle_allocation_gate, nsim_dev_trap_report_work, cfg80211_wiphy_work pwq 8: cpus=0-1 flags=0x6 nice=0 active=2 refcnt=3 in-flight: 14:cfg80211_wiphy_work cfg80211_wiphy_work workqueue events_power_efficient: flags=0x82 pwq 8: cpus=0-1 flags=0x6 nice=0 active=7 refcnt=8 in-flight: 1990:crda_timeout_work pending: 2*neigh_managed_work, gc_worker, do_cache_clean, fb_flashcursor, wg_ratelimiter_gc_entries pwq 8: cpus=0-1 flags=0x6 nice=0 active=2 refcnt=3 in-flight: 41:reg_check_chans_work ,8193:neigh_periodic_work workqueue mm_percpu_wq: flags=0x8 pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: vmstat_update workqueue kblockd: flags=0x18 pwq 3: cpus=0 node=0 flags=0x0 nice=-20 active=1 refcnt=2 pending: blk_mq_timeout_work workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=49 in-flight: 4273(RESCUER):batadv_tt_purge inactive: 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_tt_purge, batadv_bla_periodic_work, batadv_dat_purge, 5*batadv_nc_worker, 5*batadv_mcast_mla_update, 9*batadv_iv_send_outstanding_bat_ogm_packet, 5*batadv_purge_orig, 6*batadv_iv_send_outstanding_bat_ogm_packet, 3*batadv_tt_purge workqueue hci0: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 pending: hci_conn_timeout workqueue hci3: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 pending: hci_conn_timeout workqueue wg-kex-wg0: flags=0x24 pwq 6: cpus=1 node=0 flags=0x2 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=0x28 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pwq 6: cpus=1 node=0 flags=0x2 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=0x2 nice=0 active=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-kex-wg2: flags=0x24 pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_receive_worker workqueue wg-crypt-wg2: flags=0x28 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pwq 6: cpus=1 node=0 flags=0x2 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=1 refcnt=2 in-flight: 8194:wg_packet_handshake_send_worker workqueue wg-crypt-wg0: flags=0x28 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pwq 6: cpus=1 node=0 flags=0x2 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=0x2 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker workqueue wg-crypt-wg2: flags=0x28 pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=2 refcnt=3 pending: wg_packet_tx_worker, wg_packet_encrypt_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 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker workqueue wg-crypt-wg1: flags=0x28 pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-kex-wg2: flags=0x24 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=2 refcnt=3 in-flight: 6581:wg_packet_handshake_receive_worker wg_packet_handshake_receive_worker pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2 in-flight: 6610:wg_packet_handshake_receive_worker workqueue wg-crypt-wg2: flags=0x28 pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-kex-wg0: flags=0x24 pwq 6: cpus=1 node=0 flags=0x2 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=2 refcnt=3 in-flight: 42:wg_packet_handshake_send_worker pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg0: flags=0x28 pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker workqueue wg-kex-wg1: flags=0x24 pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_receive_worker workqueue wg-crypt-wg1: flags=0x28 pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=3 refcnt=4 pending: wg_packet_tx_worker, wg_packet_decrypt_worker, wg_packet_encrypt_worker workqueue wg-kex-wg2: flags=0x24 pwq 6: cpus=1 node=0 flags=0x2 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=0x2 nice=0 active=2 refcnt=3 pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker workqueue wg-kex-wg0: flags=0x24 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 in-flight: 6574:wg_packet_handshake_receive_worker pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_receive_worker workqueue wg-crypt-wg0: flags=0x28 pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker workqueue wg-kex-wg1: flags=0x24 pwq 6: cpus=1 node=0 flags=0x2 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 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg1: flags=0x28 pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-kex-wg2: flags=0x24 pwq 6: cpus=1 node=0 flags=0x2 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=0x2 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=0x2 nice=0 hung=0s workers=9 manager: 2320 idle: 6533 6588 6595 6633 9 pool 6: cpus=1 node=0 flags=0x2 nice=0 hung=39s workers=6 manager: 8195 idle: 26 24 pool 8: cpus=0-1 flags=0x6 nice=0 hung=0s workers=13 manager: 8196 Showing backtraces of running workers in stalled CPU-bound worker pools: pool 6: task:kworker/1:3 state:R running task stack:0 pid:6610 tgid:6610 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: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 rcu_read_unlock_bh include/linux/rcupdate.h:910 [inline] wg_noise_handshake_begin_session+0x6cc/0x9c0 drivers/net/wireguard/noise.c:856 wg_packet_send_handshake_response+0xfc/0x24c drivers/net/wireguard/send.c:96 wg_receive_handshake_packet drivers/net/wireguard/receive.c:154 [inline] wg_packet_handshake_receive_worker+0x4fc/0xc20 drivers/net/wireguard/receive.c:213 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 pool 6: task:kworker/1:2 state:R running task stack:0 pid:2876 tgid:2876 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events nsim_fib_event_work 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_irq+0x80/0x188 kernel/sched/core.c:7288 raw_irqentry_exit_cond_resched+0x30/0x44 kernel/entry/common.c:168 irqentry_exit+0xd4/0x108 kernel/entry/common.c:211 __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:68 [inline] exit_to_kernel_mode+0x10/0x1c arch/arm64/kernel/entry-common.c:75 __el1_irq arch/arm64/kernel/entry-common.c:522 [inline] el1_interrupt+0x4c/0x60 arch/arm64/kernel/entry-common.c:532 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:537 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:592 get_current arch/arm64/include/asm/current.h:19 [inline] (P) __sanitizer_cov_trace_pc+0x10/0x84 kernel/kcov.c:216 (P) virt_to_phys arch/arm64/include/asm/memory.h:363 [inline] virt_to_pfn arch/arm64/include/asm/memory.h:377 [inline] virt_to_folio include/linux/mm.h:1180 [inline] virt_to_slab mm/slab.h:187 [inline] qlink_to_cache mm/kasan/quarantine.c:131 [inline] qlist_free_all+0x64/0xb8 mm/kasan/quarantine.c:176 kasan_quarantine_reduce+0x118/0x124 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x2c/0xb4 mm/kasan/common.c:396 kasan_kmalloc include/linux/kasan.h:260 [inline] __kmalloc_cache_noprof+0x2a4/0x3fc mm/slub.c:4407 kmalloc_noprof include/linux/slab.h:905 [inline] kzalloc_noprof include/linux/slab.h:1039 [inline] nsim_fib6_rt_create drivers/net/netdevsim/fib.c:547 [inline] nsim_fib6_rt_insert drivers/net/netdevsim/fib.c:752 [inline] nsim_fib6_event drivers/net/netdevsim/fib.c:856 [inline] nsim_fib_event drivers/net/netdevsim/fib.c:889 [inline] nsim_fib_event_work+0xc98/0x25b8 drivers/net/netdevsim/fib.c:1493 process_one_work+0x7e8/0x155c kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x990/0xed8 kernel/workqueue.c:3400 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:6635 tgid:6635 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events nsim_fib_event_work 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 __schedule_loop kernel/sched/core.c:7043 [inline] schedule+0xb4/0x230 kernel/sched/core.c:7058 schedule_timeout+0x128/0x270 kernel/time/sleep_timeout.c:99 schedule_timeout_uninterruptible+0x7c/0xc0 kernel/time/sleep_timeout.c:158 msleep+0x3c/0x68 kernel/time/sleep_timeout.c:318 nsim_fib6_rt_add drivers/net/netdevsim/fib.c:693 [inline] nsim_fib6_rt_insert drivers/net/netdevsim/fib.c:759 [inline] nsim_fib6_event drivers/net/netdevsim/fib.c:856 [inline] nsim_fib_event drivers/net/netdevsim/fib.c:889 [inline] nsim_fib_event_work+0x1bc4/0x25b8 drivers/net/netdevsim/fib.c:1493 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 net_ratelimit: 74264 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:12:31:6d:a4:0e:d3, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, 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 veth0_to_bridge with own address as source address (addr:12:31:6d:a4:0e:d3, 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 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:1b, vlan:0)