BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 56s! Showing busy workqueues and worker pools: workqueue events: flags=0x0 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=5 refcnt=6 in-flight: 10:request_firmware_work_func pending: 3*nsim_dev_hwstats_traffic_work, psi_avgs_work pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=11 refcnt=12 pending: 3*nsim_dev_hwstats_traffic_work, 3*ovs_dp_masks_rebalance, 4*psi_avgs_work, free_obj_work workqueue events_long: flags=0x0 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=5 refcnt=6 pending: 5*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=31 refcnt=32 in-flight: 12:cfg80211_wiphy_work cfg80211_wiphy_work ,7190:cfg80211_wiphy_work ,6969:cfg80211_wiphy_work cfg80211_wiphy_work ,4784:cfg80211_wiphy_work cfg80211_wiphy_work ,42:cfg80211_wiphy_work ,1903:linkwatch_event linkwatch_event ,41:cfg80211_wiphy_work cfg80211_wiphy_work ,4823:cfg80211_wiphy_work cfg80211_wiphy_work pending: 5*macvlan_process_broadcast, 2*cfg80211_wiphy_work, flush_memcg_stats_dwork, macvlan_process_broadcast, crng_reseed, toggle_allocation_gate, 6*nsim_dev_trap_report_work pwq 8: cpus=0-1 flags=0x6 nice=0 active=2 refcnt=3 in-flight: 269:cfg80211_wiphy_work cfg80211_wiphy_work workqueue events_power_efficient: flags=0x82 pwq 8: cpus=0-1 flags=0x6 nice=0 active=6 refcnt=7 in-flight: 7191:neigh_periodic_work pending: neigh_managed_work, neigh_periodic_work, neigh_managed_work, fb_flashcursor, wg_ratelimiter_gc_entries pwq 8: cpus=0-1 flags=0x6 nice=0 active=3 refcnt=4 pending: do_cache_clean, gc_worker, reg_check_chans_work workqueue kvfree_rcu_reclaim: flags=0xa pwq 8: cpus=0-1 flags=0x6 nice=0 active=3 refcnt=5 MAYDAY pending: kfree_rcu_monitor, 2*kfree_rcu_work workqueue netns: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 in-flight: 4691:cleanup_net workqueue mm_percpu_wq: flags=0x8 pwq 6: cpus=1 node=0 flags=0x0 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 gid-cache-wq: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=6 pending: update_gid_event_work_handler inactive: netdevice_event_work_handler, update_gid_event_work_handler workqueue ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 in-flight: 14:addrconf_dad_work workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=50 in-flight: 4271(RESCUER):batadv_tt_purge inactive: batadv_tt_purge, batadv_purge_orig, 2*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, batadv_iv_send_outstanding_bat_ogm_packet, 2*batadv_purge_orig, 2*batadv_iv_send_outstanding_bat_ogm_packet, 2*batadv_purge_orig, batadv_tt_purge, 7*batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge, 2*batadv_bla_periodic_work, 2*batadv_dat_purge, 2*batadv_bla_periodic_work, 2*batadv_dat_purge, batadv_nc_worker, batadv_dat_purge, batadv_bla_periodic_work, 5*batadv_nc_worker, 6*batadv_mcast_mla_update, 2*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-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-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=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_encrypt_worker, 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 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-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=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=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_encrypt_worker, 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 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-crypt-wg2: flags=0x28 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=4 refcnt=5 in-flight: 24:wg_packet_decrypt_worker 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=0x0 nice=0 active=1 refcnt=2 in-flight: 9: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-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=0x28 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-kex-wg1: flags=0x24 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 in-flight: 6605: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-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=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 bond0: flags=0x2000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=6 MAYDAY pending: bond_netdev_notify_work inactive: bond_netdev_notify_work pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=1s workers=11 idle: 6612 6619 6766 6551 6626 6667 6633 6130 pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=56s workers=6 idle: 26 6858 1794 6666 6896 pool 8: cpus=0-1 flags=0x6 nice=0 hung=1s workers=13 manager: 7192 Showing backtraces of running workers in stalled CPU-bound worker pools: pool 6: task:kworker/1:0 state:R running task stack:0 pid:24 tgid:24 ppid:2 task_flags:0x4208060 flags:0x20000010 Workqueue: wg-crypt-wg2 wg_packet_decrypt_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 put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:244 [inline] kernel_neon_begin+0x29c/0x484 arch/arm64/kernel/fpsimd.c:1876 poly1305_blocks_arch+0xb8/0x190 lib/crypto/arm64/poly1305-glue.c:41 poly1305_blocks lib/crypto/poly1305.c:37 [inline] poly1305_update+0xd0/0x188 lib/crypto/poly1305.c:45 chacha20poly1305_crypt_sg_inplace+0x6b8/0xbc0 lib/crypto/chacha20poly1305.c:304 chacha20poly1305_decrypt_sg_inplace+0x6c/0x94 lib/crypto/chacha20poly1305.c:353 decrypt_packet drivers/net/wireguard/receive.c:278 [inline] wg_packet_decrypt_worker+0x454/0x994 drivers/net/wireguard/receive.c:501 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 bridge0: received packet on veth0_to_bridge with own address as source address (addr:6e:e4:0e:f2:26:0e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6e:e4:0e:f2:26:0e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6e:e4:0e:f2:26:0e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6e:e4:0e:f2:26:0e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6e:e4:0e:f2:26:0e, vlan:0)