bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:5b:a1:5f:08:59, vlan:0) BUG: workqueue lockup - pool cpus=0 node=0 flags=0x2 nice=0 stuck for 32s! Showing busy workqueues and worker pools: workqueue events: flags=0x0 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=15 refcnt=16 in-flight: 6463:nsim_dev_trap_report_work pending: 2*nsim_dev_hwstats_traffic_work, nsim_dev_trap_report_work, vmstat_shepherd, kfree_rcu_monitor, nsim_dev_trap_report_work, 6*ovs_dp_masks_rebalance, 2*kfree_rcu_work pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=7 refcnt=8 in-flight: 27:request_firmware_work_func ,6464:nsim_dev_trap_report_work pending: nsim_dev_trap_report_work, 3*nsim_dev_hwstats_traffic_work, psi_avgs_work workqueue events_long: flags=0x0 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=4 refcnt=5 pending: 4*defense_work_handler pwq 6: cpus=1 node=0 flags=0x2 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=12 refcnt=13 in-flight: 362:cfg80211_wiphy_work cfg80211_wiphy_work ,122:cfg80211_wiphy_work cfg80211_wiphy_work ,11:cfg80211_wiphy_work cfg80211_wiphy_work ,45:cfg80211_wiphy_work cfg80211_wiphy_work ,13:cfg80211_wiphy_work cfg80211_wiphy_work ,4288:cfg80211_wiphy_work cfg80211_wiphy_work pwq 8: cpus=0-1 flags=0x6 nice=0 active=6 refcnt=7 in-flight: 6477:linkwatch_event ,330:cfg80211_wiphy_work cfg80211_wiphy_work ,43:cfg80211_wiphy_work cfg80211_wiphy_work pending: toggle_allocation_gate workqueue events_power_efficient: flags=0x82 pwq 8: cpus=0-1 flags=0x6 nice=0 active=6 refcnt=7 in-flight: 6476:neigh_periodic_work ,713:gc_worker ,6478:reg_check_chans_work pending: neigh_managed_work, neigh_periodic_work, do_cache_clean workqueue mm_percpu_wq: flags=0x8 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: vmstat_update pwq 6: cpus=1 node=0 flags=0x2 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=3 MAYDAY pending: wb_workfn workqueue mld: flags=0x40008 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=43 pending: mld_ifc_work inactive: 14*mld_ifc_work, mld_dad_work, 6*mld_ifc_work, mld_dad_work, 2*mld_ifc_work, 2*mld_dad_work, mld_ifc_work, mld_dad_work, 13*mld_ifc_work workqueue ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=427 in-flight: 4059(RESCUER):addrconf_dad_work inactive: 421*addrconf_dad_work, addrconf_verify_work workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=48 in-flight: 4139(RESCUER):batadv_tt_purge inactive: 3*batadv_tt_purge, 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_nc_worker, 5*batadv_mcast_mla_update, 4*batadv_purge_orig, 4*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 11*batadv_iv_send_outstanding_bat_ogm_packet workqueue wg-kex-wg0: flags=0x24 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: 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 2: cpus=0 node=0 flags=0x2 nice=0 active=3 refcnt=4 pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker workqueue wg-kex-wg0: flags=0x24 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_receive_worker workqueue wg-crypt-wg0: flags=0x28 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=3 refcnt=4 pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker workqueue wg-kex-wg1: flags=0x24 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_receive_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=3 refcnt=4 pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_tx_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 2: cpus=0 node=0 flags=0x2 nice=0 active=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-kex-wg2: flags=0x24 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_receive_worker pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=2 refcnt=3 in-flight: 6460:wg_packet_handshake_receive_worker wg_packet_handshake_receive_worker workqueue wg-crypt-wg2: flags=0x28 pwq 2: cpus=0 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 2: cpus=0 node=0 flags=0x2 nice=0 active=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-kex-wg0: flags=0x24 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_receive_worker workqueue wg-crypt-wg0: flags=0x28 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=3 refcnt=4 pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=2 refcnt=3 in-flight: 25:wg_packet_tx_worker wg_packet_tx_worker workqueue wg-kex-wg0: flags=0x24 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_receive_worker workqueue wg-crypt-wg0: flags=0x28 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=3 refcnt=4 pending: wg_packet_tx_worker, wg_packet_encrypt_worker, wg_packet_decrypt_worker pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_tx_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-kex-wg2: flags=0x24 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: 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-wg2: flags=0x28 pwq 2: cpus=0 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 2: cpus=0 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-wg2: flags=0x24 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2 pending: 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-wg2: flags=0x28 pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=2 refcnt=3 pending: 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 in-flight: 6479:wg_packet_handshake_send_worker pending: wg_packet_handshake_send_worker pool 2: cpus=0 node=0 flags=0x2 nice=0 hung=33s workers=6 manager: 8 idle: 6461 10 6450 6462 pool 6: cpus=1 node=0 flags=0x2 nice=0 hung=2s workers=8 manager: 1757 idle: 6475 6418 6471 pool 8: cpus=0-1 flags=0x6 nice=0 hung=0s workers=14 manager: 6480 Showing backtraces of running workers in stalled CPU-bound worker pools: pool 2: task:kworker/0:5 state:R running task stack:0 pid:6463 tgid:6463 ppid:2 flags:0x00000008 Workqueue: events nsim_dev_trap_report_work Call trace: __switch_to+0x420/0x6dc arch/arm64/kernel/process.c:603 context_switch kernel/sched/core.c:5188 [inline] __schedule+0x13d4/0x2418 kernel/sched/core.c:6529 preempt_schedule_common+0xe8/0x1dc kernel/sched/core.c:6708 preempt_schedule+0x60/0x80 kernel/sched/core.c:6732 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_unlock+0x74/0x78 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] nsim_dev_trap_report drivers/net/netdevsim/dev.c:823 [inline] nsim_dev_trap_report_work+0x84c/0x924 drivers/net/netdevsim/dev.c:850 process_one_work+0x79c/0x15b8 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x978/0xec4 kernel/workqueue.c:3389 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 net_ratelimit: 66926 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:5b:a1:5f:08:59, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:5b:a1:5f:08:59, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:5b:a1:5f:08:59, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:5b:a1:5f:08:59, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:5b:a1:5f:08:59, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:5b:a1:5f:08:59, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:5b:a1:5f:08:59, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:5b:a1:5f:08:59, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:5b:a1:5f:08:59, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:5b:a1:5f:08:59, vlan:0)