ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 141s! Showing busy workqueues and worker pools: workqueue events: flags=0x0 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=9 refcnt=10 pending: 2*nsim_dev_hwstats_traffic_work, 4*ovs_dp_masks_rebalance, psi_avgs_work, vmstat_shepherd, psi_avgs_work workqueue events_highpri: flags=0x10 pwq 3: cpus=0 node=0 flags=0x0 nice=-20 active=1 refcnt=2 pending: fill_page_cache_func workqueue events_long: flags=0x0 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=4 refcnt=5 pending: 4*defense_work_handler workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x4 nice=0 active=19 refcnt=20 in-flight: 12850:nsim_dev_trap_report_work ,6525:nsim_dev_trap_report_work ,1089:cfg80211_wiphy_work ,6216:toggle_allocation_gate ,36:nsim_dev_trap_report_work pending: cfg80211_wiphy_work, nsim_dev_trap_report_work, cfg80211_wiphy_work, 5*nsim_dev_trap_report_work, 2*macvlan_process_broadcast, 3*cfg80211_wiphy_work, idle_cull_fn pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 in-flight: 54:cfg80211_wiphy_work pending: flush_memcg_stats_dwork workqueue events_power_efficient: flags=0x80 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=7 refcnt=8 pending: hash_netnet4_gc, wg_ratelimiter_gc_entries, 5*check_lifetime workqueue kvfree_rcu_reclaim: flags=0xa pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: kfree_rcu_monitor workqueue mm_percpu_wq: flags=0x8 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: vmstat_update workqueue kblockd: flags=0x18 pwq 3: cpus=0 node=0 flags=0x0 nice=-20 active=1 refcnt=2 pending: blk_mq_timeout_work workqueue iou_exit: flags=0x2 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 in-flight: 6515:io_ring_exit_work workqueue ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=6 pending: addrconf_verify_work inactive: 2*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 krdsd: flags=0x6000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=5 in-flight: 6492:rds_connect_worker inactive: rds_connect_worker workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=71 in-flight: 6519:batadv_nc_worker inactive: batadv_nc_worker, 10*batadv_mcast_mla_update, batadv_iv_send_outstanding_bat_ogm_packet, 8*batadv_purge_orig, batadv_iv_send_outstanding_bat_ogm_packet, 6*batadv_nc_worker, 2*batadv_iv_send_outstanding_bat_ogm_packet, 2*batadv_purge_orig, 8*batadv_iv_send_outstanding_bat_ogm_packet, 2*batadv_nc_worker, batadv_dat_purge, 2*batadv_bla_periodic_work, 2*batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, 2*batadv_bla_periodic_work, batadv_dat_purge, 4*batadv_tt_purge, 4*batadv_iv_send_outstanding_bat_ogm_packet, 3*batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, 2*batadv_tt_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-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-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=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: wg_packet_handshake_send_worker, wg_queued_expired_zero_key_material 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-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_queued_expired_zero_key_material workqueue wg-crypt-wg1: flags=0x28 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_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=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=1 refcnt=2 pending: wg_packet_encrypt_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 bond0: flags=0x2000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=5 pending: bond_mii_monitor inactive: bond_alb_monitor workqueue bond2: flags=0x2000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=5 pending: bond_alb_monitor inactive: bond_mii_monitor workqueue bond3: flags=0x2000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=5 pending: bond_mii_monitor inactive: bond_alb_monitor workqueue bond2: flags=0x2000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: bond_alb_monitor workqueue bond2: flags=0x2000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: bond_alb_monitor workqueue wg-crypt-wg0: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker 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=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 in-flight: 9:wg_packet_encrypt_worker pending: 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-crypt-wg2: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue hci2: 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=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg0: flags=0x28 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg2: flags=0x28 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=139s workers=5 idle: 5894 5891 5944 11784 pool 8: cpus=0-1 flags=0x4 nice=0 hung=139s workers=12 idle: 6517 6522 13 Showing backtraces of running workers in stalled CPU-bound worker pools: