BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 39s! Showing busy workqueues and worker pools: workqueue events: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=20 refcnt=21 in-flight: 2149:netdev_work_proc for 51s netdev_work_proc ,9:request_firmware_work_func for 87s pending: 5*nsim_dev_hwstats_traffic_work, 3*psi_avgs_work, vmstat_shepherd, delayed_vfree_work, psi_avgs_work, free_obj_work, 3*ovs_dp_masks_rebalance, psi_avgs_work, xfrm_state_gc_task pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: nsim_dev_hwstats_traffic_work workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=6 refcnt=7 in-flight: 1323:linkwatch_event for 51s ,5377:cfg80211_wiphy_work for 20s ,58:cfg80211_wiphy_work for 45s cfg80211_wiphy_work pending: cfg80211_wiphy_work, macvlan_process_broadcast pwq 8: cpus=0-1 flags=0x6 nice=0 active=22 refcnt=23 in-flight: 2689:cfg80211_wiphy_work for 50s cfg80211_wiphy_work ,40:cfg80211_wiphy_work for 37s cfg80211_wiphy_work ,182:nsim_dev_trap_report_work for 0s ,49:cfg80211_wiphy_work for 48s cfg80211_wiphy_work ,13:cfg80211_wiphy_work for 47s cfg80211_wiphy_work ,1235:cfg80211_wiphy_work for 49s cfg80211_wiphy_work ,12:cfg80211_wiphy_work for 50s cfg80211_wiphy_work ,5378:nsim_dev_trap_report_work for 3s pending: flush_memcg_stats_dwork, 2*nsim_dev_trap_report_work, macvlan_process_broadcast, nsim_dev_trap_report_work, toggle_allocation_gate, nsim_dev_trap_report_work, macvlan_process_broadcast workqueue events_power_efficient: flags=0x82 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 in-flight: 5374:gc_worker for 1s pwq 8: cpus=0-1 flags=0x6 nice=0 active=3 refcnt=4 pending: wg_ratelimiter_gc_entries, fb_flashcursor, do_cache_clean workqueue events_dfl_long: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=7 refcnt=8 pending: 7*defense_work_handler workqueue netns: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 in-flight: 4273:cleanup_net for 54s workqueue mm_percpu_wq: flags=0x108 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: vmstat_update workqueue mld: flags=0x40108 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=38 in-flight: 4355:mld_ifc_work for 39s inactive: 6*mld_ifc_work, mld_dad_work, 29*mld_ifc_work workqueue ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=62 in-flight: 2765:addrconf_dad_work for 51s inactive: 58*addrconf_dad_work workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=48 MAYDAY in-flight: 2854(RESCUER):batadv_tt_purge for 2s pending: mayday_cursor_func inactive: batadv_tt_purge, batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge, 2*batadv_dat_purge, 2*batadv_bla_periodic_work, 2*batadv_dat_purge, 2*batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, 6*batadv_purge_orig, batadv_tt_purge, batadv_mcast_mla_update, 2*batadv_iv_send_outstanding_bat_ogm_packet, 5*batadv_mcast_mla_update, 11*batadv_iv_send_outstanding_bat_ogm_packet, batadv_dat_purge, batadv_bla_periodic_work, batadv_tt_purge workqueue wg-crypt-wg0: flags=0x128 pwq 2: cpus=0 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-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_tx_worker, wg_packet_decrypt_worker workqueue wg-crypt-wg0: flags=0x128 pwq 2: cpus=0 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=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_encrypt_worker, wg_packet_decrypt_worker, wg_packet_tx_worker workqueue wg-crypt-wg2: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: 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 pending: wg_packet_handshake_receive_worker workqueue wg-crypt-wg2: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 in-flight: 4810:wg_packet_encrypt_worker for 39s pending: wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-crypt-wg0: flags=0x128 pwq 2: cpus=0 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-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-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-crypt-wg2: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-crypt-wg0: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_tx_worker, wg_packet_decrypt_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 pending: wg_packet_handshake_receive_worker workqueue wg-crypt-wg2: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_tx_worker, wg_packet_encrypt_worker pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=39s workers=8 idle: 10 4795 4818 4846 pool 8: cpus=0-1 flags=0x6 nice=0 hung=0s workers=15 manager: 5379 Showing backtraces of busy workers in stalled worker pools: pool 2: task:kworker/0:0 state:R running task stack:0 pid:9 tgid:9 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events request_firmware_work_func Call trace: __switch_to+0x2b4/0x6e4 arch/arm64/kernel/process.c:775 (T) context_switch kernel/sched/core.c:5520 [inline] __schedule+0x1370/0x2d80 kernel/sched/core.c:7270 __schedule_loop kernel/sched/core.c:7347 [inline] schedule+0x13c/0x20c kernel/sched/core.c:7362 schedule_timeout+0x13c/0x28c kernel/time/sleep_timeout.c:99 do_wait_for_common kernel/sched/completion.c:100 [inline] __wait_for_common kernel/sched/completion.c:121 [inline] wait_for_common+0x220/0x394 kernel/sched/completion.c:132 wait_for_completion_killable_timeout+0x14/0x20 kernel/sched/completion.c:293 __fw_state_wait_common drivers/base/firmware_loader/firmware.h:104 [inline] fw_sysfs_wait_timeout drivers/base/firmware_loader/fallback.c:44 [inline] fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:120 [inline] fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:172 [inline] firmware_fallback_sysfs+0x4ec/0x930 drivers/base/firmware_loader/fallback.c:248 _request_firmware+0xb34/0xf5c drivers/base/firmware_loader/main.c:898 request_firmware_work_func+0xa4/0x24c drivers/base/firmware_loader/main.c:1162 process_one_work kernel/workqueue.c:3387 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3470 worker_thread+0x798/0xbd0 kernel/workqueue.c:3551 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838 pool 2: task:kworker/0:5 state:R running task stack:0 pid:4810 tgid:4810 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: wg-crypt-wg2 wg_packet_encrypt_worker Call trace: __switch_to+0x2b4/0x6e4 arch/arm64/kernel/process.c:775 (T) context_switch kernel/sched/core.c:5520 [inline] __schedule+0x1370/0x2d80 kernel/sched/core.c:7270 preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7449 preempt_schedule+0x60/0x78 kernel/sched/core.c:7473 __local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:480 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:237 [inline] _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:245 spin_unlock_bh include/linux/spinlock.h:407 [inline] ptr_ring_consume_bh include/linux/ptr_ring.h:399 [inline] wg_packet_encrypt_worker+0x120c/0x1290 drivers/net/wireguard/send.c:293 process_one_work kernel/workqueue.c:3387 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3470 worker_thread+0x798/0xbd0 kernel/workqueue.c:3551 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838 pool 2: task:kworker/0:3 state:R running task stack:0 pid:4355 tgid:4355 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: mld mld_ifc_work Call trace: __switch_to+0x2b4/0x6e4 arch/arm64/kernel/process.c:775 (T) context_switch kernel/sched/core.c:5520 [inline] __schedule+0x1370/0x2d80 kernel/sched/core.c:7270 preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7449 preempt_schedule+0x60/0x78 kernel/sched/core.c:7473 __local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:480 local_bh_enable include/linux/bottom_half.h:33 [inline] ip6t_do_table+0x10e0/0x12d8 net/ipv6/netfilter/ip6_tables.c:375 nf_hook_entry_hookfn include/linux/netfilter.h:165 [inline] nf_hook_slow+0xc8/0x224 net/netfilter/core.c:619 nf_hook include/linux/netfilter.h:280 [inline] NF_HOOK+0x310/0x464 include/linux/netfilter.h:323 mld_sendpack+0x7f4/0xfec net/ipv6/mcast.c:1870 mld_send_cr net/ipv6/mcast.c:2171 [inline] mld_ifc_work+0x76c/0x9e4 net/ipv6/mcast.c:2711 process_one_work kernel/workqueue.c:3387 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3470 worker_thread+0x798/0xbd0 kernel/workqueue.c:3551 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838