BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 140s! Showing busy workqueues and worker pools: workqueue events: flags=0x0 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=23 refcnt=24 in-flight: 5909:nsim_fib_event_work nsim_fib_event_work pending: psi_avgs_work, 3*ovs_dp_masks_rebalance, vmstat_shepherd, 2*ovs_dp_masks_rebalance, 9*nsim_dev_hwstats_traffic_work, psi_avgs_work, ovs_dp_masks_rebalance, ima_keys_handler, free_obj_work, psi_avgs_work pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3 in-flight: 5911:switchdev_deferred_process_work pending: nsim_dev_hwstats_traffic_work workqueue events_highpri: flags=0x10 pwq 3: cpus=0 node=0 flags=0x0 nice=-20 active=1 refcnt=3 pending: flush_backlog BAR(10135) workqueue events_long: flags=0x0 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=4 refcnt=5 pending: 3*defense_work_handler, br_fdb_cleanup pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=3 refcnt=4 in-flight: 46:defense_work_handler pending: 2*defense_work_handler workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x6 nice=0 active=14 refcnt=15 in-flight: 3466:cfg80211_wiphy_work ,12:cfg80211_wiphy_work ,35:cfg80211_wiphy_work pending: kfree_rcu_monitor, 3*cfg80211_wiphy_work, macvlan_process_broadcast, cfg80211_wiphy_work, 4*macvlan_process_broadcast, fill_page_cache_func pwq 8: cpus=0-1 flags=0x6 nice=0 active=45 refcnt=46 in-flight: 3597:fsnotify_connector_destroy_workfn ,52:cfg80211_wiphy_work ,10175:cfg80211_wiphy_work ,3420:fsnotify_mark_destroy_workfn ,173:cfg80211_wiphy_work ,11:linkwatch_event ,1159:cfg80211_wiphy_work ,67:cfg80211_wiphy_work pending: 5*cfg80211_wiphy_work, 5*nsim_dev_trap_report_work, kfree_rcu_work, toggle_allocation_gate, 2*nsim_dev_trap_report_work, flush_memcg_stats_dwork, macvlan_process_broadcast, kfree_rcu_monitor, 4*macvlan_process_broadcast, cfg80211_wiphy_work, nsim_dev_trap_report_work, macvlan_process_broadcast, cfg80211_wiphy_work, nsim_dev_trap_report_work, cfg80211_wiphy_work, nsim_dev_trap_report_work, cfg80211_wiphy_work, crng_reseed, macvlan_process_broadcast, fill_page_cache_func, macvlan_process_broadcast, 2*kfree_rcu_work, idle_cull_fn, cfg80211_wiphy_work workqueue events_freezable: flags=0x4 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: update_balloon_stats_func workqueue events_power_efficient: flags=0x80 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=6 refcnt=7 pending: wg_ratelimiter_gc_entries, do_cache_clean, gc_worker, 3*check_lifetime pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 in-flight: 5935:reg_check_chans_work workqueue rcu_gp: flags=0x8 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: process_srcu workqueue mm_percpu_wq: flags=0x8 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 ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=91 in-flight: 3520:addrconf_dad_work inactive: 78*addrconf_dad_work, 9*addrconf_verify_work workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=82 in-flight: 3396(RESCUER):batadv_tt_purge inactive: batadv_tt_purge, batadv_bla_periodic_work, batadv_dat_purge, 2*batadv_tt_purge, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_nc_worker, batadv_tt_purge, batadv_dat_purge, 2*batadv_bla_periodic_work, batadv_dat_purge, 7*batadv_nc_worker, batadv_iv_send_outstanding_bat_ogm_packet, 4*batadv_purge_orig, 2*batadv_iv_send_outstanding_bat_ogm_packet, 8*batadv_mcast_mla_update, batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, batadv_iv_send_outstanding_bat_ogm_packet, 2*batadv_purge_orig, 13*batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge, 3*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 9*batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_tt_purge, batadv_dat_purge, batadv_bla_periodic_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=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_tx_worker, wg_packet_encrypt_worker, wg_packet_decrypt_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_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=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_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=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_encrypt_worker, wg_packet_decrypt_worker, wg_packet_tx_worker workqueue wg-kex-wg2: flags=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=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker workqueue wg-crypt-wg0: flags=0x28 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=0x6 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker workqueue wg-crypt-wg2: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker workqueue hci0: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 in-flight: 5872: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=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=4 refcnt=5 in-flight: 1204:wg_packet_encrypt_worker pending: wg_packet_tx_worker, wg_packet_decrypt_worker, wg_packet_encrypt_worker workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=0 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=0x6 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_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=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_tx_worker, wg_packet_encrypt_worker, wg_packet_decrypt_worker workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker workqueue wg-crypt-wg2: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker workqueue hci3: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 in-flight: 5868: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: 54: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=0x28 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=0x6 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_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 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_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=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4 pending: wg_packet_tx_worker, wg_packet_decrypt_worker, wg_packet_encrypt_worker workqueue wg-kex-wg2: flags=0x6 pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: wg_packet_encrypt_worker, wg_packet_tx_worker workqueue hci2: flags=0x20012 pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4 in-flight: 5858:hci_cmd_sync_work pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=124s workers=9 idle: 5914 6879 10023 5910 5912 8 9 pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=0s workers=10 idle: 25 46 118 7430 5934 5913 5931 5856 pool 8: cpus=0-1 flags=0x6 nice=0 hung=18s workers=13 manager: 10176 pool 9: cpus=0-1 node=0 flags=0x4 nice=-20 hung=0s workers=11 idle: 5167 5867 5863 5869 5870 5873 5865 Showing backtraces of running workers in stalled CPU-bound worker pools: