BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 31s! Showing busy workqueues and worker pools: workqueue events: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=14 refcnt=15 pending: 4*nsim_dev_hwstats_traffic_work, psi_avgs_work, vmstat_shepherd, 2*psi_avgs_work, 5*ovs_dp_masks_rebalance, free_obj_work pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=4 refcnt=5 pending: 4*nsim_dev_hwstats_traffic_work workqueue events_long: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=5 refcnt=6 in-flight: 6111:defense_work_handler for 31s pending: 4*defense_work_handler workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=10 refcnt=11 in-flight: 3523:cfg80211_wiphy_work for 102s cfg80211_wiphy_work ,15:cfg80211_wiphy_work for 113s cfg80211_wiphy_work ,6362:cfg80211_wiphy_work for 110s cfg80211_wiphy_work ,3715:linkwatch_event for 119s linkwatch_event ,6359:cfg80211_wiphy_work for 105s cfg80211_wiphy_work pwq 8: cpus=0-1 flags=0x6 nice=0 active=16 refcnt=17 in-flight: 3479:cfg80211_wiphy_work for 114s cfg80211_wiphy_work ,12:nsim_dev_trap_report_work for 0s ,7481:nsim_dev_trap_report_work for 6s ,39:cfg80211_wiphy_work for 99s cfg80211_wiphy_work pending: macvlan_process_broadcast, 4*nsim_dev_trap_report_work, flush_memcg_stats_dwork, macvlan_process_broadcast, nsim_dev_trap_report_work, toggle_allocation_gate, nsim_dev_trap_report_work workqueue events_power_efficient: flags=0x182 pwq 8: cpus=0-1 flags=0x6 nice=0 active=3 refcnt=4 in-flight: 6911:reg_check_chans_work for 67s pending: check_lifetime, do_cache_clean pwq 8: cpus=0-1 flags=0x6 nice=0 active=5 refcnt=6 in-flight: 5146:neigh_periodic_work for 7s ,40:gc_worker for 8s ,205:neigh_periodic_work for 43s pending: fb_flashcursor, wg_ratelimiter_gc_entries workqueue mm_percpu_wq: flags=0x108 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 ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=12 MAYDAY in-flight: 2817(RESCUER):addrconf_verify_work for 54s inactive: 6*addrconf_verify_work workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=46 MAYDAY in-flight: 2852(RESCUER):batadv_tt_purge for 3s pending: mayday_cursor_func inactive: batadv_tt_purge, batadv_bla_periodic_work, 2*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, 3*batadv_iv_send_outstanding_bat_ogm_packet, 3*batadv_purge_orig, 9*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, batadv_dat_purge, batadv_bla_periodic_work, 3*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 2*batadv_iv_send_outstanding_bat_ogm_packet, 2*batadv_tt_purge 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 workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=2 refcnt=3 pending: 2*wg_packet_handshake_send_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-kex-wg0: flags=0x124 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 in-flight: 4823:wg_packet_handshake_receive_worker for 1s 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 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-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=2 refcnt=3 in-flight: 6912:wg_packet_handshake_send_worker for 13s pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg0: flags=0x128 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-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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_encrypt_worker, wg_packet_decrypt_worker, wg_packet_tx_worker workqueue wg-kex-wg1: flags=0x124 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_receive_worker workqueue wg-crypt-wg1: flags=0x128 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=0x124 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 in-flight: 4899:wg_packet_handshake_receive_worker for 75s wg_packet_handshake_receive_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3 in-flight: 4803:wg_packet_handshake_receive_worker for 58s 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: 5147:wg_packet_handshake_send_worker for 11s workqueue wg-crypt-wg2: flags=0x128 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-kex-wg2: flags=0x124 pwq 2: cpus=0 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: 6360:wg_packet_handshake_send_worker for 12s workqueue wg-crypt-wg2: flags=0x128 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-kex-wg0: 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 in-flight: 4801:wg_packet_handshake_receive_worker for 12s workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 in-flight: 1462:wg_packet_handshake_send_worker for 11s workqueue wg-crypt-wg0: flags=0x128 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=0x128 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-kex-wg2: flags=0x124 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 in-flight: 9:wg_packet_handshake_receive_worker for 33s workqueue wg-crypt-wg2: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: 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 workqueue wg-crypt-wg0: flags=0x128 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-kex-wg1: flags=0x124 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 in-flight: 4166:wg_packet_handshake_receive_worker for 48s pending: wg_packet_handshake_receive_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=4 refcnt=5 in-flight: 11:wg_packet_tx_worker for 32s pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker workqueue wg-kex-wg2: flags=0x124 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 in-flight: 4810:wg_packet_handshake_receive_worker for 48s wg_packet_handshake_receive_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 in-flight: 4467:wg_packet_handshake_receive_worker for 26s workqueue wg-crypt-wg2: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker workqueue bond3: flags=0x2000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=6 MAYDAY pending: bond_alb_monitor inactive: bond_mii_monitor workqueue bond1: flags=0x2000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=6 MAYDAY pending: bond_alb_monitor inactive: bond_mii_monitor pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=31s workers=7 idle: 6112 pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=0s workers=10 idle: 24 4718 4824 4802 867 26 pool 8: cpus=0-1 flags=0x6 nice=0 hung=0s workers=18 manager: 7482 Showing backtraces of busy workers in stalled worker pools: pool 2: task:kworker/0:5 state:R running task stack:0 pid:6111 tgid:6111 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events_long defense_work_handler Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1c04/0x2db8 kernel/sched/core.c:7189 preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7370 preempt_schedule+0x60/0x78 kernel/sched/core.c:7394 __local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:457 local_bh_enable include/linux/bottom_half.h:33 [inline] update_defense_level+0x610/0x9c4 net/netfilter/ipvs/ip_vs_ctl.c:210 defense_work_handler+0x2c/0xd8 net/netfilter/ipvs/ip_vs_ctl.c:235 process_one_work kernel/workqueue.c:3314 [inline] process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3397 worker_thread+0x798/0xbd0 kernel/workqueue.c:3478 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 pool 2: task:kworker/0:3 state:R running task stack:0 pid:4810 tgid:4810 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: wg-kex-wg2 wg_packet_handshake_receive_worker Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1c04/0x2db8 kernel/sched/core.c:7189 preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7370 preempt_schedule+0x60/0x78 kernel/sched/core.c:7394 __local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:457 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:912 [inline] wg_noise_handshake_begin_session+0x698/0x958 drivers/net/wireguard/noise.c:856 wg_packet_send_handshake_response+0x108/0x264 drivers/net/wireguard/send.c:96 wg_receive_handshake_packet drivers/net/wireguard/receive.c:154 [inline] wg_packet_handshake_receive_worker+0x570/0xcf8 drivers/net/wireguard/receive.c:213 process_one_work kernel/workqueue.c:3314 [inline] process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3397 worker_thread+0x798/0xbd0 kernel/workqueue.c:3478 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 pool 2: task:kworker/0:0 state:R running task stack:0 pid:9 tgid:9 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: wg-kex-wg2 wg_packet_handshake_receive_worker Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1c04/0x2db8 kernel/sched/core.c:7189 preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7370 preempt_schedule+0x60/0x78 kernel/sched/core.c:7394 __local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:457 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:196 [inline] _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:214 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+0x23c/0xcf8 drivers/net/wireguard/receive.c:212 process_one_work kernel/workqueue.c:3314 [inline] process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3397 worker_thread+0x798/0xbd0 kernel/workqueue.c:3478 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 pool 2: task:kworker/0:4 state:R running task stack:0 pid:4899 tgid:4899 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: wg-kex-wg2 wg_packet_handshake_receive_worker Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1c04/0x2db8 kernel/sched/core.c:7189 preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7370 preempt_schedule+0x60/0x78 kernel/sched/core.c:7394 __local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:457 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:912 [inline] wg_noise_handshake_begin_session+0x698/0x958 drivers/net/wireguard/noise.c:856 wg_packet_send_handshake_response+0x108/0x264 drivers/net/wireguard/send.c:96 wg_receive_handshake_packet drivers/net/wireguard/receive.c:154 [inline] wg_packet_handshake_receive_worker+0x570/0xcf8 drivers/net/wireguard/receive.c:213 process_one_work kernel/workqueue.c:3314 [inline] process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3397 worker_thread+0x798/0xbd0 kernel/workqueue.c:3478 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 pool 2: task:kworker/0:2 state:R running task stack:0 pid:4166 tgid:4166 ppid:2 task_flags:0x4208060 flags:0x20000010 Workqueue: wg-kex-wg1 wg_packet_handshake_receive_worker Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1c04/0x2db8 kernel/sched/core.c:7189 preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7370 preempt_schedule+0x60/0x78 kernel/sched/core.c:7394 __local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:457 local_bh_enable include/linux/bottom_half.h:33 [inline] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] kernel_neon_begin+0x29c/0x400 arch/arm64/kernel/fpsimd.c:1936 class_ksimd_constructor arch/arm64/include/asm/simd.h:48 [inline] poly1305_blocks+0x110/0x204 lib/crypto/arm64/poly1305.h:30 poly1305_update+0x168/0x39c lib/crypto/poly1305.c:59 __chacha20poly1305_decrypt+0x288/0x39c lib/crypto/chacha20poly1305.c:157 chacha20poly1305_decrypt+0x238/0x5e4 lib/crypto/chacha20poly1305.c:186 message_decrypt+0x50/0x90 drivers/net/wireguard/noise.c:477 wg_noise_handshake_consume_initiation+0x1a0/0x53c drivers/net/wireguard/noise.c:612 wg_receive_handshake_packet drivers/net/wireguard/receive.c:144 [inline] wg_packet_handshake_receive_worker+0x54c/0xcf8 drivers/net/wireguard/receive.c:213 process_one_work kernel/workqueue.c:3314 [inline] process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3397 worker_thread+0x798/0xbd0 kernel/workqueue.c:3478 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 pool 2: task:kworker/0:1 state:R running task stack:0 pid:11 tgid:11 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: wg-crypt-wg1 wg_packet_tx_worker Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1c04/0x2db8 kernel/sched/core.c:7189 preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7370 preempt_schedule+0x60/0x78 kernel/sched/core.c:7394 __local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:457 __raw_read_unlock_bh include/linux/rwlock_api_smp.h:283 [inline] _raw_read_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:288 wg_socket_send_skb_to_peer+0x150/0x19c drivers/net/wireguard/socket.c:183 wg_packet_create_data_done drivers/net/wireguard/send.c:251 [inline] wg_packet_tx_worker+0x188/0x75c drivers/net/wireguard/send.c:276 process_one_work kernel/workqueue.c:3314 [inline] process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3397 worker_thread+0x798/0xbd0 kernel/workqueue.c:3478 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:46:89:3a:7d:62:f9, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:46:89:3a:7d:62:f9, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)