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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 56s! Showing busy workqueues and worker pools: workqueue events: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=30 refcnt=31 in-flight: 4816:vmstat_shepherd for 73s ,1156:request_firmware_work_func for 117s ,4862:switchdev_deferred_process_work for 73s switchdev_deferred_process_work ,1194:netdev_work_proc for 73s netdev_work_proc pending: nfc_urelease_event_work, 3*psi_avgs_work, drm_fb_helper_damage_work, 5*ovs_dp_masks_rebalance, psi_avgs_work, bpf_prog_free_deferred, 6*nsim_dev_hwstats_traffic_work, delayed_vfree_work, 2*psi_avgs_work, ovs_dp_masks_rebalance, xfrm_state_gc_task, rht_deferred_worker workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=36 refcnt=37 in-flight: 500:cfg80211_wiphy_work for 70s ,223:cfg80211_wiphy_work for 66s ,12:cfg80211_wiphy_work for 65s ,1937:nsim_dev_trap_report_work for 43s ,13:linkwatch_event for 74s linkwatch_event ,40:cfg80211_wiphy_work for 71s ,1895:cfg80211_wiphy_work for 42s ,53:cfg80211_wiphy_work for 71s ,581:nsim_dev_trap_report_work for 33s ,1180:toggle_allocation_gate for 74s pending: 7*cfg80211_wiphy_work, nsim_dev_trap_report_work, cfg80211_wiphy_work, 2*nsim_dev_trap_report_work, macvlan_process_broadcast, nsim_dev_trap_report_work, 6*macvlan_process_broadcast, crng_reseed, macvlan_process_broadcast, cfg80211_wiphy_work, flush_memcg_stats_dwork, 2*macvlan_process_broadcast workqueue events_power_efficient: flags=0x82 pwq 8: cpus=0-1 flags=0x6 nice=0 active=9 refcnt=10 pending: fb_flashcursor, neigh_managed_work, neigh_periodic_work, wg_ratelimiter_gc_entries, neigh_periodic_work, gc_worker, do_cache_clean, neigh_managed_work, reg_check_chans_work workqueue events_dfl_long: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=6 refcnt=7 pending: 6*defense_work_handler workqueue mm_percpu_wq: flags=0x108 pwq 2: cpus=0 node=0 flags=0x0 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=4 MAYDAY in-flight: 33(RESCUER):wb_workfn for 29s pending: mayday_cursor_func workqueue kblockd: flags=0x118 pwq 3: cpus=0 node=0 flags=0x0 nice=-20 active=1 refcnt=2 in-flight: 4341:blk_mq_timeout_work for 33s workqueue gid-cache-wq: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: netdevice_event_work_handler workqueue mld: flags=0x40108 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=31 pending: mld_ifc_work inactive: 29*mld_ifc_work workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=45 MAYDAY in-flight: 2859(RESCUER):batadv_tt_purge for 12s pending: mayday_cursor_func inactive: 12*batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge, batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 2*batadv_iv_send_outstanding_bat_ogm_packet, 3*batadv_purge_orig, batadv_dat_purge, batadv_bla_periodic_work, batadv_tt_purge, batadv_bla_periodic_work, batadv_dat_purge, 2*batadv_bla_periodic_work, 2*batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_tt_purge, 5*batadv_mcast_mla_update, batadv_purge_orig, batadv_tt_purge workqueue ext4-rsv-conversion: flags=0xa pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=3 MAYDAY pending: ext4_end_io_rsv_work workqueue hci3: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=5 in-flight: 4710:hci_cmd_sync_work for 75s inactive: hci_cmd_sync_work 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: 2*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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: 2*wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg2: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: 2*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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: 2*wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: 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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue loop4: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 pending: loop_rootcg_workfn 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=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=56s workers=8 idle: 4794 10 9 4795 pool 3: cpus=0 node=0 flags=0x0 nice=-20 hung=0s workers=2 idle: 11 pool 8: cpus=0-1 flags=0x6 nice=0 hung=12s workers=11 manager: 5687 pool 9: cpus=0-1 node=0 flags=0x4 nice=-20 hung=0s workers=6 idle: 50 4715 4712 4720 4718 Showing backtraces of busy workers in stalled worker pools: pool 2: task:kworker/0:2 state:R running task stack:0 pid:1156 tgid:1156 ppid:2 task_flags:0x4288060 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:5533 [inline] __schedule+0x135c/0x2b00 kernel/sched/core.c:7284 preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7463 preempt_schedule+0x60/0x78 kernel/sched/core.c:7487 __local_bh_enable_ip+0x16c/0x234 kernel/softirq.c:480 local_bh_enable include/linux/bottom_half.h:33 [inline] __alloc_skb+0x1c8/0x610 net/core/skbuff.c:699 alloc_skb include/linux/skbuff.h:1384 [inline] alloc_uevent_skb+0x78/0x1ec lib/kobject_uevent.c:289 uevent_net_broadcast_untagged lib/kobject_uevent.c:326 [inline] kobject_uevent_net_broadcast+0x2d4/0x53c lib/kobject_uevent.c:410 kobject_uevent_env+0x518/0x944 lib/kobject_uevent.c:611 kobject_uevent+0x2c/0x3c lib/kobject_uevent.c:659 device_del+0x5f8/0x71c drivers/base/core.c:3983 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:134 [inline] fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:172 [inline] firmware_fallback_sysfs+0x330/0x930 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:3396 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 net_ratelimit: 35483 callbacks suppressed bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) 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 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) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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) net_ratelimit: 35320 callbacks suppressed 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 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) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 35357 callbacks suppressed bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 35228 callbacks suppressed 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) 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 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) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 35377 callbacks suppressed bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) 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 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) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) net_ratelimit: 35359 callbacks suppressed 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) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 86s! Showing busy workqueues and worker pools: workqueue events: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=30 refcnt=31 in-flight: 4816:vmstat_shepherd for 103s ,1156:request_firmware_work_func for 147s ,4862:switchdev_deferred_process_work for 103s switchdev_deferred_process_work ,1194:netdev_work_proc for 104s netdev_work_proc pending: nfc_urelease_event_work, 3*psi_avgs_work, drm_fb_helper_damage_work, 5*ovs_dp_masks_rebalance, psi_avgs_work, bpf_prog_free_deferred, 6*nsim_dev_hwstats_traffic_work, delayed_vfree_work, 2*psi_avgs_work, ovs_dp_masks_rebalance, xfrm_state_gc_task, rht_deferred_worker workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=36 refcnt=37 in-flight: 500:cfg80211_wiphy_work for 100s ,223:cfg80211_wiphy_work for 96s ,12:cfg80211_wiphy_work for 95s ,1937:nsim_dev_trap_report_work for 73s ,13:linkwatch_event for 104s linkwatch_event ,40:cfg80211_wiphy_work for 102s ,1895:cfg80211_wiphy_work for 72s ,53:cfg80211_wiphy_work for 101s ,581:nsim_dev_trap_report_work for 63s ,1180:toggle_allocation_gate for 104s pending: 7*cfg80211_wiphy_work, nsim_dev_trap_report_work, cfg80211_wiphy_work, 2*nsim_dev_trap_report_work, macvlan_process_broadcast, nsim_dev_trap_report_work, 6*macvlan_process_broadcast, crng_reseed, macvlan_process_broadcast, cfg80211_wiphy_work, flush_memcg_stats_dwork, 2*macvlan_process_broadcast workqueue events_power_efficient: flags=0x82 pwq 8: cpus=0-1 flags=0x6 nice=0 active=9 refcnt=10 pending: fb_flashcursor, neigh_managed_work, neigh_periodic_work, wg_ratelimiter_gc_entries, neigh_periodic_work, gc_worker, do_cache_clean, neigh_managed_work, reg_check_chans_work workqueue events_dfl_long: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=6 refcnt=7 pending: 6*defense_work_handler workqueue mm_percpu_wq: flags=0x108 pwq 2: cpus=0 node=0 flags=0x0 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=4 MAYDAY in-flight: 33(RESCUER):wb_workfn for 59s pending: mayday_cursor_func workqueue kblockd: flags=0x118 pwq 3: cpus=0 node=0 flags=0x0 nice=-20 active=1 refcnt=2 in-flight: 4341:blk_mq_timeout_work for 63s workqueue gid-cache-wq: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: netdevice_event_work_handler workqueue mld: flags=0x40108 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=31 pending: mld_ifc_work inactive: 29*mld_ifc_work workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=37 MAYDAY in-flight: 2859(RESCUER):batadv_dat_purge for 0s pending: mayday_cursor_func inactive: batadv_bla_periodic_work, batadv_tt_purge, batadv_bla_periodic_work, batadv_dat_purge, 2*batadv_bla_periodic_work, 2*batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_tt_purge, 5*batadv_mcast_mla_update, batadv_purge_orig, batadv_tt_purge, 12*batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge workqueue ext4-rsv-conversion: flags=0xa pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 MAYDAY in-flight: 4310(RESCUER):ext4_end_io_rsv_work for 12s pending: mayday_cursor_func workqueue hci3: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=5 in-flight: 4710:hci_cmd_sync_work for 105s inactive: hci_cmd_sync_work 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: 2*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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: 2*wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg2: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: 2*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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: 2*wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: 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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue loop4: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 pending: loop_rootcg_workfn 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=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=86s workers=8 idle: 4794 10 9 4795 pool 3: cpus=0 node=0 flags=0x0 nice=-20 hung=0s workers=2 idle: 11 pool 8: cpus=0-1 flags=0x6 nice=0 hung=0s workers=11 manager: 5687 pool 9: cpus=0-1 node=0 flags=0x4 nice=-20 hung=0s workers=6 idle: 50 4715 4712 4720 4718 Showing backtraces of busy workers in stalled worker pools: pool 2: task:kworker/0:2 state:R running task stack:0 pid:1156 tgid:1156 ppid:2 task_flags:0x4288060 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:5533 [inline] __schedule+0x135c/0x2b00 kernel/sched/core.c:7284 preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7463 preempt_schedule+0x60/0x78 kernel/sched/core.c:7487 __local_bh_enable_ip+0x16c/0x234 kernel/softirq.c:480 local_bh_enable include/linux/bottom_half.h:33 [inline] __alloc_skb+0x1c8/0x610 net/core/skbuff.c:699 alloc_skb include/linux/skbuff.h:1384 [inline] alloc_uevent_skb+0x78/0x1ec lib/kobject_uevent.c:289 uevent_net_broadcast_untagged lib/kobject_uevent.c:326 [inline] kobject_uevent_net_broadcast+0x2d4/0x53c lib/kobject_uevent.c:410 kobject_uevent_env+0x518/0x944 lib/kobject_uevent.c:611 kobject_uevent+0x2c/0x3c lib/kobject_uevent.c:659 device_del+0x5f8/0x71c drivers/base/core.c:3983 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:134 [inline] fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:172 [inline] firmware_fallback_sysfs+0x330/0x930 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:3396 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 net_ratelimit: 34372 callbacks suppressed bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 34918 callbacks suppressed bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 35110 callbacks suppressed bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 35094 callbacks suppressed bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 35219 callbacks suppressed 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) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) net_ratelimit: 35193 callbacks suppressed bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 116s! Showing busy workqueues and worker pools: workqueue events: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=30 refcnt=31 in-flight: 4816:vmstat_shepherd for 133s ,1156:request_firmware_work_func for 177s ,4862:switchdev_deferred_process_work for 134s switchdev_deferred_process_work ,1194:netdev_work_proc for 134s netdev_work_proc pending: nfc_urelease_event_work, 3*psi_avgs_work, drm_fb_helper_damage_work, 5*ovs_dp_masks_rebalance, psi_avgs_work, bpf_prog_free_deferred, 6*nsim_dev_hwstats_traffic_work, delayed_vfree_work, 2*psi_avgs_work, ovs_dp_masks_rebalance, xfrm_state_gc_task, rht_deferred_worker workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=36 refcnt=37 in-flight: 500:cfg80211_wiphy_work for 130s ,223:cfg80211_wiphy_work for 126s ,12:cfg80211_wiphy_work for 125s ,1937:nsim_dev_trap_report_work for 103s ,13:linkwatch_event for 134s linkwatch_event ,40:cfg80211_wiphy_work for 132s ,1895:cfg80211_wiphy_work for 102s ,53:cfg80211_wiphy_work for 131s ,581:nsim_dev_trap_report_work for 93s ,1180:toggle_allocation_gate for 134s pending: 7*cfg80211_wiphy_work, nsim_dev_trap_report_work, cfg80211_wiphy_work, 2*nsim_dev_trap_report_work, macvlan_process_broadcast, nsim_dev_trap_report_work, 6*macvlan_process_broadcast, crng_reseed, macvlan_process_broadcast, cfg80211_wiphy_work, flush_memcg_stats_dwork, 2*macvlan_process_broadcast workqueue events_power_efficient: flags=0x82 pwq 8: cpus=0-1 flags=0x6 nice=0 active=15 refcnt=16 pending: fb_flashcursor, neigh_managed_work, neigh_periodic_work, wg_ratelimiter_gc_entries, neigh_periodic_work, gc_worker, do_cache_clean, neigh_managed_work, reg_check_chans_work, 6*check_lifetime workqueue events_dfl_long: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=6 refcnt=7 pending: 6*defense_work_handler workqueue mm_percpu_wq: flags=0x108 pwq 2: cpus=0 node=0 flags=0x0 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=4 MAYDAY in-flight: 33(RESCUER):wb_workfn for 89s pending: mayday_cursor_func workqueue kblockd: flags=0x118 pwq 3: cpus=0 node=0 flags=0x0 nice=-20 active=1 refcnt=2 in-flight: 4341:blk_mq_timeout_work for 93s workqueue gid-cache-wq: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: netdevice_event_work_handler workqueue mld: flags=0x40108 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=31 pending: mld_ifc_work inactive: 29*mld_ifc_work workqueue ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=11 MAYDAY in-flight: 2827(RESCUER):addrconf_verify_work for 10s pending: mayday_cursor_func inactive: 5*addrconf_verify_work workqueue krxrpcd: flags=0x2001a pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 pending: rxrpc_peer_keepalive_worker workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=45 MAYDAY in-flight: 2859(RESCUER):batadv_tt_purge for 19s pending: mayday_cursor_func inactive: batadv_bla_periodic_work, batadv_dat_purge, 2*batadv_bla_periodic_work, 2*batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_tt_purge, 5*batadv_mcast_mla_update, batadv_purge_orig, batadv_tt_purge, 12*batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge, batadv_purge_orig, 3*batadv_iv_send_outstanding_bat_ogm_packet, 3*batadv_purge_orig, batadv_tt_purge, batadv_bla_periodic_work, batadv_dat_purge workqueue ext4-rsv-conversion: flags=0xa pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 MAYDAY in-flight: 4310(RESCUER):ext4_end_io_rsv_work for 42s pending: mayday_cursor_func workqueue hci0: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 in-flight: 4712:hci_cmd_work for 23s workqueue hci0: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 in-flight: 4715:hci_cmd_sync_work for 29s workqueue hci2: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 in-flight: 4720:hci_cmd_work for 10s workqueue hci2: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 in-flight: 50:hci_cmd_sync_work for 29s workqueue hci3: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=5 in-flight: 4710:hci_cmd_sync_work for 135s inactive: hci_cmd_sync_work workqueue hci4: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 pending: hci_cmd_sync_work 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: 2*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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: 2*wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg2: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: 2*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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: 2*wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: 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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue loop4: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 pending: loop_rootcg_workfn workqueue hci1: 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=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=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_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=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=116s workers=8 idle: 4794 10 9 4795 pool 3: cpus=0 node=0 flags=0x0 nice=-20 hung=0s workers=2 idle: 11 pool 8: cpus=0-1 flags=0x6 nice=0 hung=10s workers=11 manager: 5687 pool 9: cpus=0-1 node=0 flags=0x4 nice=-20 hung=10s workers=6 idle: 4718 Showing backtraces of busy workers in stalled worker pools: pool 2: task:kworker/0:2 state:R running task stack:0 pid:1156 tgid:1156 ppid:2 task_flags:0x4288060 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:5533 [inline] __schedule+0x135c/0x2b00 kernel/sched/core.c:7284 preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7463 preempt_schedule+0x60/0x78 kernel/sched/core.c:7487 __local_bh_enable_ip+0x16c/0x234 kernel/softirq.c:480 local_bh_enable include/linux/bottom_half.h:33 [inline] __alloc_skb+0x1c8/0x610 net/core/skbuff.c:699 alloc_skb include/linux/skbuff.h:1384 [inline] alloc_uevent_skb+0x78/0x1ec lib/kobject_uevent.c:289 uevent_net_broadcast_untagged lib/kobject_uevent.c:326 [inline] kobject_uevent_net_broadcast+0x2d4/0x53c lib/kobject_uevent.c:410 kobject_uevent_env+0x518/0x944 lib/kobject_uevent.c:611 kobject_uevent+0x2c/0x3c lib/kobject_uevent.c:659 device_del+0x5f8/0x71c drivers/base/core.c:3983 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:134 [inline] fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:172 [inline] firmware_fallback_sysfs+0x330/0x930 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:3396 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 net_ratelimit: 35072 callbacks suppressed 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) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, 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) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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) net_ratelimit: 35145 callbacks suppressed 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) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:42:15:14:00:b3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P4700/1:b..l rcu: (detected by 0, t=10502 jiffies, g=6537, q=1023 ncpus=1) task:udevd state:R running task stack:0 pid:4700 tgid:4700 ppid:4345 task_flags:0x40014c flags:0x00000008 Call trace: __switch_to+0x2b4/0x6e4 arch/arm64/kernel/process.c:775 (T) context_switch kernel/sched/core.c:5533 [inline] __schedule+0x135c/0x2b00 kernel/sched/core.c:7284 preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7463 preempt_schedule+0x60/0x78 kernel/sched/core.c:7487 irq_work_queue+0xa0/0xa4 kernel/irq_work.c:125 __rhashtable_remove_fast_one include/linux/rhashtable.h:1121 [inline] __rhashtable_remove_fast include/linux/rhashtable.h:1145 [inline] rhashtable_remove_fast include/linux/rhashtable.h:1174 [inline] netlink_remove net/netlink/af_netlink.c:599 [inline] netlink_release+0x14d4/0x182c net/netlink/af_netlink.c:726 __sock_release+0xa0/0x1d4 net/socket.c:735 sock_close+0x24/0x38 net/socket.c:1526 __fput+0x338/0x74c fs/file_table.c:512 ____fput+0x20/0x30 fs/file_table.c:541 task_work_run+0x1cc/0x25c kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x58c/0x1a74 kernel/exit.c:986 do_group_exit+0x198/0x238 kernel/exit.c:1129 __do_sys_exit_group kernel/exit.c:1140 [inline] __se_sys_exit_group kernel/exit.c:1138 [inline] pid_child_should_wake+0x0/0x104 kernel/exit.c:1138 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x1d8 arch/arm64/kernel/entry-common.c:796 el0t_64_sync_handler+0x44/0x104 arch/arm64/kernel/entry-common.c:815 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:606 rcu: rcu_preempt kthread starved for 1439 jiffies! g6537 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->cpu=0 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:0 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00000010 Call trace: __switch_to+0x2b4/0x6e4 arch/arm64/kernel/process.c:775 (T) context_switch kernel/sched/core.c:5533 [inline] __schedule+0x135c/0x2b00 kernel/sched/core.c:7284 __schedule_loop kernel/sched/core.c:7361 [inline] schedule+0x13c/0x20c kernel/sched/core.c:7376 schedule_timeout+0x13c/0x28c kernel/time/sleep_timeout.c:99 rcu_gp_fqs_loop+0x260/0xde8 kernel/rcu/tree.c:2122 rcu_gp_kthread+0x148/0x230 kernel/rcu/tree.c:2330 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 rcu: Stack dump where RCU GP kthread last ran: CPU: 0 UID: 0 PID: 2859 Comm: kworker/R-bat_e Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 Workqueue: bat_events batadv_bla_periodic_work pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:211 [inline] pc : _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:221 lr : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:210 [inline] lr : _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:221 sp : ffff80008f7e7740 x29: ffff80008f7e7740 x28: 0000000000000000 x27: 0000000000000000 x26: ffff000186f4e4b0 x25: ffff80008f629788 x24: 0000000000000001 x23: ffff000186f4e000 x22: 0000000000000000 x21: 0000000000000000 x20: ffff80008f629790 x19: 0000000000000000 x18: ffff80011b876000 x17: 0000000000020010 x16: 0038dd8600000000 x15: 0000000000000001 x14: 00000000056775f0 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008b24ae28 x10: 0000000000000003 x9 : 0000000000000001 x8 : 00000000000000c0 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000801557e8 x2 : 0000000000000002 x1 : ffff0000cdc19d80 x0 : ffff80011b876000 Call trace: __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P) arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P) __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:210 [inline] (P) _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:221 (P) __debug_check_no_obj_freed lib/debugobjects.c:1180 [inline] debug_check_no_obj_freed+0x2c8/0x3a4 lib/debugobjects.c:1201 slab_free_hook mm/slub.c:2679 [inline] slab_free mm/slub.c:6509 [inline] kmem_cache_free+0x120/0x680 mm/slub.c:6636 kfree_skbmem+0x14c/0x1d8 net/core/skbuff.c:-1 __kfree_skb net/core/skbuff.c:1212 [inline] sk_skb_reason_drop+0x10c/0x160 net/core/skbuff.c:1250 kfree_skb_reason include/linux/skbuff.h:1323 [inline] kfree_skb include/linux/skbuff.h:1332 [inline] ip6_mc_input+0x7e0/0xb28 net/ipv6/ip6_input.c:639 dst_input include/net/dst.h:481 [inline] ip6_rcv_finish+0x1e0/0x204 net/ipv6/ip6_input.c:119 NF_HOOK+0x308/0x398 include/linux/netfilter.h:325 ipv6_rcv+0x9c/0xbc net/ipv6/ip6_input.c:351 __netif_receive_skb_one_core+0xc8/0x110 net/core/dev.c:6297 __netif_receive_skb+0x34/0x128 net/core/dev.c:6410 process_backlog+0x588/0x14e0 net/core/dev.c:6761 __napi_poll+0xb4/0x328 net/core/dev.c:7830 napi_poll net/core/dev.c:7893 [inline] net_rx_action+0x5b0/0xc14 net/core/dev.c:8050 handle_softirqs+0x324/0xcbc kernel/softirq.c:645 __do_softirq+0x14/0x20 kernel/softirq.c:679 ____do_softirq+0x10/0x1c arch/arm64/kernel/irq.c:78 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:901 do_softirq_own_stack+0x1c/0x28 arch/arm64/kernel/irq.c:83 do_softirq+0x90/0xf8 kernel/softirq.c:546 __local_bh_enable_ip+0x190/0x234 kernel/softirq.c:473 __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] batadv_bla_purge_backbone_gw+0x3e0/0x480 net/batman-adv/bridge_loop_avoidance.c:1290 batadv_bla_periodic_work+0x60/0x8e8 net/batman-adv/bridge_loop_avoidance.c:1494 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479 rescuer_thread+0x68c/0xd90 kernel/workqueue.c:3703 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854