ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 214s! Showing busy workqueues and worker pools: workqueue events: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=21 refcnt=22 pending: 10*nsim_dev_hwstats_traffic_work, psi_avgs_work, vmstat_shepherd, 3*psi_avgs_work, 4*ovs_dp_masks_rebalance, rht_deferred_worker, switchdev_deferred_process_work workqueue events_long: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=10 refcnt=11 pending: 6*defense_work_handler, 2*br_multicast_gc_work, 2*br_fdb_cleanup workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x4 nice=0 active=15 refcnt=16 in-flight: 1034:toggle_allocation_gate for 215s pending: 9*nsim_dev_trap_report_work, 2*idle_cull_fn, nsim_dev_trap_report_work, crng_reseed, idle_cull_fn workqueue events_power_efficient: flags=0x180 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=7 refcnt=8 in-flight: 5817:gc_worker for 215s pending: hash_ipportnet6_gc, 5*check_lifetime workqueue events_freezable_pwr_efficient: flags=0x184 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: sync_hw_clock 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=0x4 nice=0 active=1 refcnt=2 pending: wb_workfn workqueue ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=8 pending: addrconf_verify_work inactive: 4*addrconf_verify_work workqueue krxrpcd: flags=0x2001a pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=9 pending: rxrpc_peer_keepalive_worker inactive: 5*rxrpc_peer_keepalive_worker workqueue bat_events: flags=0x6000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=33 pending: batadv_iv_send_outstanding_bat_ogm_packet inactive: batadv_iv_send_outstanding_bat_ogm_packet, 5*batadv_mcast_mla_update, 5*batadv_purge_orig, 3*batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge, batadv_dat_purge, batadv_bla_periodic_work, 4*batadv_tt_purge, 2*batadv_bla_periodic_work, 3*batadv_dat_purge, 2*batadv_bla_periodic_work, batadv_dat_purge workqueue krds_cp_wq#0/0: flags=0x20002 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: rds_connect_worker workqueue krds_cp_wq#4/0: flags=0x20002 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: rds_connect_worker workqueue krds_cp_wq#5/0: flags=0x20002 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: rds_connect_worker workqueue bond6: flags=0x2000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=5 pending: bond_alb_monitor inactive: bond_mii_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 krds_cp_wq#11/0: flags=0x20002 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: rds_connect_worker workqueue bond7: flags=0x2000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=5 pending: bond_alb_monitor inactive: bond_mii_monitor workqueue bond8: flags=0x2000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=5 pending: bond_alb_monitor inactive: bond_mii_monitor workqueue bond4: flags=0x2000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=5 pending: bond_alb_monitor inactive: bond_mii_monitor workqueue bond9: flags=0x2000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=5 pending: bond_alb_monitor inactive: bond_mii_monitor pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=215s workers=14 idle: 24635 20759 801 5911 9 8682 8681 10 16499 20760 20761 24642 5918 pool 8: cpus=0-1 flags=0x4 nice=0 hung=215s workers=18 idle: 25817 6400 1169 6394 6404 6399 25808 84 25806 6397 6403 1152 25814 25809 25548 25816 25812