BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 42s! BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 42s! Showing busy workqueues and worker pools: workqueue events: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 in-flight: 1501:jump_label_update_timeout for 42s workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x4 nice=0 active=24 refcnt=25 pending: 4*cfg80211_wiphy_work, fsnotify_mark_destroy_workfn, bpf_map_free_deferred, fsnotify_connector_destroy_workfn, 8*macvlan_process_broadcast, cfg80211_wiphy_work, macvlan_process_broadcast, call_usermodehelper_exec_work, macvlan_process_broadcast, 3*call_usermodehelper_exec_work, macvlan_process_broadcast, call_usermodehelper_exec_work workqueue events_power_efficient: flags=0x82 pwq 8: cpus=0-1 flags=0x4 nice=0 active=4 refcnt=5 pending: neigh_managed_work, hash_ipportnet4_gc, wg_ratelimiter_gc_entries, hash_ipmark4_gc workqueue events_freezable_pwr_efficient: flags=0x86 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: sync_hw_clock workqueue events_dfl_long: flags=0x2 pwq 8: cpus=0-1 flags=0x4 nice=0 active=8 refcnt=9 pending: 8*defense_work_handler workqueue mm_percpu_wq: flags=0x108 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=3 pending: lru_add_drain_per_cpu BAR(36) workqueue writeback: flags=0x4a pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: 2*wb_workfn workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=23 pending: batadv_tt_purge inactive: 4*batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge, batadv_dat_purge, batadv_bla_periodic_work, 2*batadv_tt_purge, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, 2*batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg0: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg1: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg0: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg0: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker workqueue wg-crypt-wg2: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_decrypt_worker workqueue wg-kex-wg2: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue krds_cp_wq#0/1: flags=0x20002 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#1/1: flags=0x20002 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-kex-wg2: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue bond3: flags=0x2000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: bond_3ad_state_machine_handler workqueue bond1: flags=0x2000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: bond_mii_monitor workqueue wg-crypt-wg0: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue krds_cp_wq#5/0: flags=0x20002 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#5/1: flags=0x20002 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#5/3: flags=0x20002 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#6/0: flags=0x20002 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue krds_cp_wq#6/3: flags=0x20002 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: rds_send_worker workqueue wg-crypt-wg0: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker workqueue wg-kex-wg2: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg0: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker workqueue wg-crypt-wg1: flags=0x128 pwq 6: cpus=1 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-wg2: flags=0x128 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=0s workers=9 idle: 10 4891 4711 9 4887 4819 4379 4812 Showing backtraces of busy workers in stalled worker pools: pool 6: no worker in running state, cpu=1 is busy (nr_workers=6 nr_idle=6) The pool might have trouble waking an idle worker. Backtrace of last woken worker: task:kworker/1:0 state:R stack:0 pid:24 tgid:24 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: 0x0 (rcu_gp) 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 worker_thread+0x924/0xbd0 kernel/workqueue.c:3566 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838 Sending NMI from CPU 0 to CPUs 1: After 10 seconds, these CPUS still haven't responded to the NMI: 1