start_kernel+0x484/0x490 init/main.c:1220 x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310 x86_64_start_kernel+0x12b/0x130 arch/x86/kernel/head64.c:291 common_startup_64+0x13e/0x148 BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 256s! BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 149s! BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 143s! Showing busy workqueues and worker pools: workqueue events: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=16 refcnt=17 pending: 7*nsim_dev_hwstats_traffic_work, vmstat_shepherd, psi_avgs_work, 4*ovs_dp_masks_rebalance, psi_avgs_work, 2*rht_deferred_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=11 refcnt=12 in-flight: 5971:switchdev_deferred_process_work for 150s pending: psi_avgs_work, 2*nsim_dev_hwstats_traffic_work, 2*psi_avgs_work, 3*ovs_dp_masks_rebalance, switchdev_deferred_process_work, rht_deferred_worker workqueue events_long: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=7 refcnt=8 pending: 3*defense_work_handler, br_multicast_gc_work, 2*br_fdb_cleanup, br_multicast_gc_work pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=8 refcnt=9 pending: 4*defense_work_handler, 2*br_fdb_cleanup, br_multicast_gc_work, br_fdb_cleanup workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x4 nice=0 active=5 refcnt=6 pending: idle_cull_fn, 2*cfg80211_wiphy_work, macvlan_process_broadcast, idle_cull_fn pwq 8: cpus=0-1 flags=0x4 nice=0 active=20 refcnt=21 in-flight: 36:nsim_dev_trap_report_work for 151s ,6988:nsim_dev_trap_report_work for 256s ,6244:idle_cull_fn for 150s pending: nsim_dev_trap_report_work, cfg80211_wiphy_work, 6*nsim_dev_trap_report_work, toggle_allocation_gate, cfg80211_wiphy_work, idle_cull_fn, flush_memcg_stats_dwork, idle_cull_fn, 2*cfg80211_wiphy_work, crng_reseed, idle_cull_fn workqueue events_power_efficient: flags=0x180 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=8 refcnt=9 pending: hash_ip6_gc, hash_mac4_gc, gc_worker, 5*check_lifetime pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=10 refcnt=11 pending: 2*nf_flow_offload_work_gc, wg_ratelimiter_gc_entries, 2*neigh_managed_work, 2*neigh_periodic_work, 2*check_lifetime, do_cache_clean workqueue mm_percpu_wq: flags=0x108 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: vmstat_update pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: vmstat_update workqueue writeback: flags=0x4a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wb_update_bandwidth_workfn workqueue kblockd: flags=0x18 pwq 7: cpus=1 node=0 flags=0x0 nice=-20 active=1 refcnt=2 pending: blk_mq_timeout_work workqueue ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=15 in-flight: 6987:addrconf_dad_work for 257s inactive: 4*addrconf_dad_work, 7*addrconf_verify_work workqueue krxrpcd: flags=0x2001a pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=10 pending: rxrpc_peer_keepalive_worker inactive: 6*rxrpc_peer_keepalive_worker workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=49 pending: batadv_mcast_mla_update inactive: 5*batadv_mcast_mla_update, 4*batadv_purge_orig, 10*batadv_iv_send_outstanding_bat_ogm_packet, 2*batadv_purge_orig, 2*batadv_bla_periodic_work, batadv_dat_purge, 6*batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge, 2*batadv_bla_periodic_work, 5*batadv_dat_purge, 2*batadv_bla_periodic_work, 5*batadv_tt_purge workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=4 refcnt=5 pending: wg_queued_expired_zero_key_material, 2*wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: 2*wg_packet_handshake_send_worker workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=3 refcnt=4 pending: wg_queued_expired_zero_key_material, 2*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_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=3 refcnt=4 pending: wg_queued_expired_zero_key_material, 2*wg_packet_handshake_send_worker workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: 2*wg_packet_handshake_send_worker workqueue wg-kex-wg2: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: 2*wg_packet_handshake_send_worker workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=3 refcnt=4 pending: 2*wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=3 refcnt=4 pending: wg_queued_expired_zero_key_material, 2*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_queued_expired_zero_key_material pwq 8: cpus=0-1 flags=0x4 nice=0 active=3 refcnt=4 pending: 2*wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material workqueue bond1: flags=0x2000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=5 pending: bond_mii_monitor inactive: bond_3ad_state_machine_handler workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: 2*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: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_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 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker pwq 6: cpus=1 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=0x4 nice=0 active=2 refcnt=3 pending: 2*wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=0x128 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue bond1: flags=0x2000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=5 pending: bond_alb_monitor inactive: bond_mii_monitor workqueue hci2: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 pending: hci_conn_timeout workqueue hci5: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 pending: hci_conn_timeout pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=150s workers=7 idle: 29 24 5927 11389 5972 5934 pool 8: cpus=0-1 flags=0x4 nice=0 hung=151s workers=15 idle: 134 12 66 48 139 3556 1097 6989 6355 11518 6222 Showing backtraces of busy workers in stalled worker pools: pool 6: task:kworker/1:6 state:D stack:23752 pid:5971 tgid:5971 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: events switchdev_deferred_process_work Call Trace: context_switch kernel/sched/core.c:5387 [inline] __schedule+0x10e9/0x6820 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xdd/0x390 kernel/sched/core.c:7282 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7339 __mutex_lock_common kernel/locking/mutex.c:712 [inline] __mutex_lock+0xced/0x1b10 kernel/locking/mutex.c:806 switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104 process_one_work+0xa0e/0x1980 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3466 kthread+0x370/0x450 kernel/kthread.c:436 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245