bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on bridge_slave_1 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 57s! Showing busy workqueues and worker pools: workqueue events: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=24 refcnt=25 in-flight: 10:xfrm_state_gc_task for 57s ,9:reg_todo for 57s pending: 7*nsim_dev_hwstats_traffic_work, 2*psi_avgs_work, vmstat_shepherd, psi_avgs_work, 6*ovs_dp_masks_rebalance, drm_fb_helper_damage_work, 3*psi_avgs_work, key_garbage_collector workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=29 refcnt=30 in-flight: 3451:nsim_dev_trap_report_work for 62s ,3585:nsim_dev_trap_report_work for 39s ,3131:cfg80211_wiphy_work for 97s cfg80211_wiphy_work ,3702:cfg80211_wiphy_work for 90s cfg80211_wiphy_work ,3833:cfg80211_wiphy_work for 57s cfg80211_wiphy_work ,13:cfg80211_wiphy_work for 67s ,41:toggle_allocation_gate for 45s ,134:nsim_dev_trap_report_work for 56s ,40:cfg80211_wiphy_work for 88s cfg80211_wiphy_work ,3272:cfg80211_wiphy_work for 96s cfg80211_wiphy_work pending: nsim_dev_trap_report_work, cfg80211_wiphy_work, flush_memcg_stats_dwork, 3*nsim_dev_trap_report_work, cfg80211_wiphy_work, 4*macvlan_process_broadcast, crng_reseed, 2*macvlan_process_broadcast workqueue events_power_efficient: flags=0x82 pwq 8: cpus=0-1 flags=0x6 nice=0 active=13 refcnt=14 in-flight: 3749:gc_worker for 54s ,1159:neigh_periodic_work for 75s pending: wg_ratelimiter_gc_entries, crda_timeout_work, 2*neigh_managed_work, fb_flashcursor, reg_check_chans_work, do_cache_clean, neigh_periodic_work, 3*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=2 in-flight: 2577:wb_workfn for 69s workqueue mld: flags=0x40108 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=50 pending: mld_ifc_work inactive: 48*mld_ifc_work workqueue ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=10 MAYDAY pending: addrconf_verify_work inactive: 5*addrconf_verify_work workqueue krxrpcd: flags=0x2001a pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=5 pending: rxrpc_peer_keepalive_worker inactive: 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: 2854(RESCUER):batadv_tt_purge for 12s pending: mayday_cursor_func inactive: 3*batadv_tt_purge, batadv_bla_periodic_work, 3*batadv_dat_purge, 3*batadv_bla_periodic_work, 3*batadv_mcast_mla_update, batadv_dat_purge, 2*batadv_mcast_mla_update, 9*batadv_iv_send_outstanding_bat_ogm_packet, 3*batadv_purge_orig, batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 5*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, batadv_tt_purge, batadv_bla_periodic_work, batadv_dat_purge workqueue hci2: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=5 in-flight: 4726:hci_cmd_sync_work for 72s inactive: hci_cmd_sync_work workqueue hci4: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 in-flight: 4716:hci_cmd_sync_work for 15s 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=3 refcnt=4 pending: 2*wg_packet_tx_worker, wg_packet_encrypt_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-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=3 refcnt=4 pending: 2*wg_packet_tx_worker, wg_packet_encrypt_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 krds_cp_wq#0/0: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#0/1: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#0/2: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#0/3: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#0/4: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: rds_shutdown_worker workqueue krds_cp_wq#1/0: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#1/2: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#1/4: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 in-flight: 3191:rds_send_worker for 51s 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-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 in-flight: 3353:wg_packet_handshake_send_worker for 46s workqueue wg-crypt-wg1: 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-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 pending: 2*wg_packet_tx_worker, wg_packet_encrypt_worker workqueue hci0: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 pending: hci_conn_timeout 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=3 refcnt=4 pending: 2*wg_packet_tx_worker, wg_packet_encrypt_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 bond2: flags=0x2000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=6 MAYDAY pending: bond_mii_monitor inactive: bond_alb_monitor pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=57s workers=8 idle: 4822 4916 4774 865 4912 4875 pool 8: cpus=0-1 flags=0x6 nice=0 hung=12s workers=16 manager: 12 pool 9: cpus=0-1 node=0 flags=0x4 nice=-20 hung=9s workers=8 idle: 4728 4729 51 4727 4717 4721 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 reg_todo 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 __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] reg_process_pending_beacon_hints net/wireless/reg.c:3180 [inline] reg_todo+0x608/0x6a4 net/wireless/reg.c:3241 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: 36420 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 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: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 veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, 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: 36470 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 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: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 veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, 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: 36460 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 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: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 veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, 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: 36442 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 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 veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) net_ratelimit: 36438 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 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: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 veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, 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: 36480 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 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: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 veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on bridge_slave_1 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 87s! Showing busy workqueues and worker pools: workqueue events: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=24 refcnt=25 in-flight: 10:xfrm_state_gc_task for 87s ,9:reg_todo for 87s pending: 7*nsim_dev_hwstats_traffic_work, 2*psi_avgs_work, vmstat_shepherd, psi_avgs_work, 6*ovs_dp_masks_rebalance, drm_fb_helper_damage_work, 3*psi_avgs_work, key_garbage_collector workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=31 refcnt=32 in-flight: 3451:nsim_dev_trap_report_work for 92s ,3585:nsim_dev_trap_report_work for 69s ,3131:cfg80211_wiphy_work for 127s cfg80211_wiphy_work ,3702:cfg80211_wiphy_work for 120s cfg80211_wiphy_work ,3833:cfg80211_wiphy_work for 87s cfg80211_wiphy_work ,13:cfg80211_wiphy_work for 98s ,41:toggle_allocation_gate for 75s ,134:nsim_dev_trap_report_work for 86s ,40:cfg80211_wiphy_work for 119s cfg80211_wiphy_work ,3272:cfg80211_wiphy_work for 126s cfg80211_wiphy_work pending: nsim_dev_trap_report_work, cfg80211_wiphy_work, flush_memcg_stats_dwork, 3*nsim_dev_trap_report_work, cfg80211_wiphy_work, 4*macvlan_process_broadcast, crng_reseed, 4*macvlan_process_broadcast workqueue events_power_efficient: flags=0x82 pwq 8: cpus=0-1 flags=0x6 nice=0 active=16 refcnt=17 in-flight: 3749:gc_worker for 84s ,1159:neigh_periodic_work for 105s pending: wg_ratelimiter_gc_entries, crda_timeout_work, 2*neigh_managed_work, fb_flashcursor, reg_check_chans_work, do_cache_clean, neigh_periodic_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=2 in-flight: 2577:wb_workfn for 99s workqueue mld: flags=0x40108 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=50 pending: mld_ifc_work inactive: 48*mld_ifc_work workqueue ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=11 MAYDAY in-flight: 2822(RESCUER):addrconf_verify_work for 5s 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=44 MAYDAY in-flight: 2854(RESCUER):batadv_tt_purge for 1s pending: mayday_cursor_func inactive: batadv_tt_purge, batadv_bla_periodic_work, 3*batadv_dat_purge, 3*batadv_bla_periodic_work, 3*batadv_mcast_mla_update, batadv_dat_purge, 2*batadv_mcast_mla_update, 9*batadv_iv_send_outstanding_bat_ogm_packet, 3*batadv_purge_orig, batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 5*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, batadv_tt_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_tt_purge workqueue hci2: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=5 in-flight: 4726:hci_cmd_sync_work for 102s inactive: hci_cmd_sync_work workqueue hci4: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 in-flight: 4728:hci_cmd_work for 13s workqueue hci4: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 in-flight: 4716:hci_cmd_sync_work for 45s 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=3 refcnt=4 pending: 2*wg_packet_tx_worker, wg_packet_encrypt_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-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=3 refcnt=4 pending: 2*wg_packet_tx_worker, wg_packet_encrypt_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 krds_cp_wq#0/0: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#0/1: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#0/2: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#0/3: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#0/4: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: rds_shutdown_worker workqueue krds_cp_wq#1/0: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#1/2: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#1/4: flags=0x20002 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 in-flight: 3191:rds_send_worker for 81s 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-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 in-flight: 3353:wg_packet_handshake_send_worker for 76s workqueue wg-crypt-wg1: 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-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 pending: 2*wg_packet_tx_worker, wg_packet_encrypt_worker workqueue hci0: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 pending: hci_cmd_sync_work 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=3 refcnt=4 pending: 2*wg_packet_tx_worker, wg_packet_encrypt_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 bond2: flags=0x2000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=6 MAYDAY pending: bond_mii_monitor inactive: bond_alb_monitor pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=87s workers=8 idle: 4822 4916 4774 865 4912 4875 pool 8: cpus=0-1 flags=0x6 nice=0 hung=1s workers=16 manager: 12 pool 9: cpus=0-1 node=0 flags=0x4 nice=-20 hung=13s workers=8 idle: 4729 51 4727 4717 4721 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 reg_todo 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 __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] reg_process_pending_beacon_hints net/wireless/reg.c:3180 [inline] reg_todo+0x608/0x6a4 net/wireless/reg.c:3241 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: 36452 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 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 veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) net_ratelimit: 36267 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 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: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: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 veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:5e:7d:6f:3c:db:0b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P4715/1:b..l rcu: (detected by 0, t=10502 jiffies, g=21845, q=1033 ncpus=1) task:syz-executor state:R running task stack:0 pid:4715 tgid:4715 ppid:4713 task_flags:0x400140 flags:0x00000000 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_irq+0x74/0x174 kernel/sched/core.c:7606 raw_irqentry_exit_cond_resched+0x30/0x40 kernel/entry/common.c:145 irqentry_exit_to_kernel_mode_preempt+0x44/0x54 include/linux/irq-entry-common.h:468 arm64_exit_to_kernel_mode_preempt+0x1c/0x38 arch/arm64/kernel/entry-common.c:107 __el1_irq arch/arm64/kernel/entry-common.c:571 [inline] el1_interrupt+0x4c/0x60 arch/arm64/kernel/entry-common.c:581 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:586 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:602 write_comp_data+0x74/0x84 kernel/kcov.c:268 (P) __sanitizer_cov_trace_const_cmp4+0x28/0x34 kernel/kcov.c:310 rcu_read_lock include/linux/rcupdate.h:850 [inline] __page_table_check_zero+0xb4/0x40c mm/page_table_check.c:138 page_table_check_free include/linux/page_table_check.h:46 [inline] __free_pages_prepare mm/page_alloc.c:1419 [inline] __free_frozen_pages+0xb00/0xbd0 mm/page_alloc.c:2962 free_frozen_pages+0x14/0x20 mm/page_alloc.c:2999 __free_slab+0x11c/0x1b4 mm/slub.c:3528 free_slab+0x2c/0x154 mm/slub.c:3562 discard_slab+0x48/0x90 mm/slub.c:3568 __slab_free+0x1a0/0x1d0 mm/slub.c:5823 ___cache_free+0x80/0x94 mm/slub.c:6581 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0xb4/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x118/0x124 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x2c/0xb4 mm/kasan/common.c:417 kasan_kmalloc include/linux/kasan.h:263 [inline] __do_kmalloc_node mm/slub.c:5414 [inline] __kmalloc_noprof+0x34c/0x6c8 mm/slub.c:5439 _kmalloc_noprof include/linux/slab.h:995 [inline] _kzalloc_noprof include/linux/slab.h:1312 [inline] tomoyo_encode2+0x10c/0x330 security/tomoyo/realpath.c:45 tomoyo_encode+0x34/0x50 security/tomoyo/realpath.c:80 tomoyo_realpath_from_path+0x488/0x4dc security/tomoyo/realpath.c:283 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_check_open_permission+0x1c4/0x394 security/tomoyo/file.c:776 tomoyo_file_open+0x78/0xcc security/tomoyo/tomoyo.c:334 security_file_open+0xbc/0x258 security/security.c:2739 do_dentry_open+0x2a8/0xfbc fs/open.c:973 vfs_open+0x44/0x2dc fs/open.c:1101 do_open fs/namei.c:4866 [inline] path_openat+0x1084/0x18f0 fs/namei.c:5029 do_file_open+0x1c8/0x2e8 fs/namei.c:5058 do_sys_openat2+0x114/0x1e8 fs/open.c:1417 do_sys_open+0xb0/0xe0 fs/open.c:1423 __do_sys_openat fs/open.c:1439 [inline] __se_sys_openat fs/open.c:1434 [inline] __arm64_sys_openat+0xa8/0xc4 fs/open.c:1434 __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 6993 jiffies! g21845 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: 2854 Comm: kworker/R-bat_e Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 Workqueue: bat_events batadv_tt_purge pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ip6table_mangle_hook+0x1c/0x5c4 net/ipv6/netfilter/ip6table_mangle.c:70 lr : nf_hook_entry_hookfn include/linux/netfilter.h:165 [inline] lr : nf_hook_slow+0xc8/0x224 net/netfilter/core.c:619 sp : ffff80008f7e6c90 x29: ffff80008f7e6c90 x28: ffff0000f1ba0810 x27: 1fffe0001e374100 x26: dfff800000000000 x25: ffff80008588b090 x24: ffff80008aaff100 x23: ffff0000f1ba0808 x22: 0000000000000000 x21: ffff80008f7e6da0 x20: ffff0000f1ba0800 x19: ffff00018a72c140 x18: ffff80011b876000 x17: 0000000000020010 x16: 0038dd8600000000 x15: 0000000000000001 x14: 000000000470eca2 x13: 0000000000000009 x12: 0000000000000009 x11: 000000004cbcf016 x10: 0000000000000003 x9 : ffff80008f7e6bf0 x8 : 0000000000000000 x7 : ffff8000859c0490 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800085001218 x2 : ffff80008f7e6da0 x1 : ffff00018a72c140 x0 : ffff0000cb653d80 Call trace: ip6table_mangle_hook+0x1c/0x5c4 net/ipv6/netfilter/ip6table_mangle.c:70 (P) 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+0x4c4/0x63c include/linux/netfilter.h:323 br_nf_forward_ip+0x540/0x6ac net/bridge/br_netfilter_hooks.c:721 br_nf_forward+0x614/0x14e4 net/bridge/br_netfilter_hooks.c:-1 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:252 [inline] NF_HOOK+0x1ec/0x394 include/linux/netfilter.h:323 __br_forward+0x2d8/0x43c net/bridge/br_forward.c:115 deliver_clone+0x70/0xcc net/bridge/br_forward.c:131 maybe_deliver+0x98/0x128 net/bridge/br_forward.c:191 br_flood+0x28c/0x5c0 net/bridge/br_forward.c:245 br_handle_frame_finish+0xd78/0x14c4 net/bridge/br_input.c:229 br_nf_hook_thresh+0x344/0x3e8 net/bridge/br_netfilter_hooks.c:-1 br_nf_pre_routing_finish_ipv6+0x7ac/0xaa4 net/bridge/br_netfilter_ipv6.c:-1 NF_HOOK include/linux/netfilter.h:325 [inline] br_nf_pre_routing_ipv6+0x2c4/0x5f8 net/bridge/br_netfilter_ipv6.c:183 br_nf_pre_routing+0x6e0/0x1168 net/bridge/br_netfilter_hooks.c:513 nf_hook_entry_hookfn include/linux/netfilter.h:165 [inline] nf_hook_bridge_pre net/bridge/br_input.c:291 [inline] br_handle_frame+0xeb0/0x10dc net/bridge/br_input.c:451 __netif_receive_skb_core+0x848/0x2a3c net/core/dev.c:6184 __netif_receive_skb_one_core+0x70/0x110 net/core/dev.c:6295 __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_tt_global_purge net/batman-adv/translation-table.c:2390 [inline] batadv_tt_purge+0x3e4/0x7b4 net/batman-adv/translation-table.c:3754 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