BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 153s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x100
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=11 refcnt=12
    pending: nsim_dev_hwstats_traffic_work, psi_avgs_work, vmstat_shepherd, psi_avgs_work, free_obj_work, 2*psi_avgs_work, 4*ovs_dp_masks_rebalance
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=9 refcnt=10
    pending: delayed_vfree_work, 4*nsim_dev_hwstats_traffic_work, 2*psi_avgs_work, 2*ovs_dp_masks_rebalance
workqueue events_long: flags=0x100
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=5 refcnt=6
    in-flight: 10:defense_work_handler for 153s
    pending: 4*defense_work_handler
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2
    pending: defense_work_handler
workqueue events_unbound: flags=0x2
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=14 refcnt=15
    in-flight: 1097:cfg80211_wiphy_work for 157s cfg80211_wiphy_work ,6559:cfg80211_wiphy_work for 158s cfg80211_wiphy_work ,6551:cfg80211_wiphy_work for 158s cfg80211_wiphy_work ,6563:cfg80211_wiphy_work for 158s cfg80211_wiphy_work ,6555:cfg80211_wiphy_work for 158s cfg80211_wiphy_work ,6557:cfg80211_wiphy_work for 152s cfg80211_wiphy_work ,58:cfg80211_wiphy_work for 155s cfg80211_wiphy_work
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=11 refcnt=12
    in-flight: 6571:nsim_dev_trap_report_work for 32s ,6561:cfg80211_wiphy_work for 96s cfg80211_wiphy_work ,6569:nsim_dev_trap_report_work for 33s ,1015:nsim_dev_trap_report_work for 32s ,6549:cfg80211_wiphy_work for 155s cfg80211_wiphy_work ,195:nsim_dev_trap_report_work for 13s ,36:nsim_dev_trap_report_work for 19s ,6543:toggle_allocation_gate for 35s
    pending: flush_memcg_stats_dwork
workqueue events_freezable: flags=0x104
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: update_balloon_stats_func
workqueue events_power_efficient: flags=0x180
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=6 refcnt=7
    pending: wg_ratelimiter_gc_entries, gc_worker, reg_check_chans_work, 3*check_lifetime
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=5 refcnt=6
    in-flight: 5951:neigh_periodic_work for 63s
    pending: 2*neigh_managed_work, neigh_periodic_work, do_cache_clean
workqueue kvfree_rcu_reclaim: flags=0xa
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=3 MAYDAY
    pending: kfree_rcu_monitor
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=0x2 nice=0 active=1 refcnt=3 MAYDAY
    pending: vmstat_update
workqueue writeback: flags=0x4a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
    in-flight: 6565:wb_workfn for 134s
workqueue bat_events: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=27
    in-flight: 13:batadv_dat_purge for 30s
    inactive: batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, 3*batadv_tt_purge, 3*batadv_mcast_mla_update, 2*batadv_iv_send_outstanding_bat_ogm_packet, 3*batadv_purge_orig, 7*batadv_iv_send_outstanding_bat_ogm_packet, batadv_bla_periodic_work
workqueue hci0: flags=0x20012
  pwq 9: cpus=0-1 node=0 flags=0x6 nice=-20 active=1 refcnt=4
    in-flight: 5838:hci_cmd_sync_work for 76s
workqueue hci1: flags=0x20012
  pwq 9: cpus=0-1 node=0 flags=0x6 nice=-20 active=1 refcnt=4
    in-flight: 51:hci_cmd_sync_work for 76s
workqueue hci2: flags=0x20012
  pwq 9: cpus=0-1 node=0 flags=0x6 nice=-20 active=1 refcnt=4
    in-flight: 5848:hci_cmd_sync_work for 76s
workqueue hci3: flags=0x20012
  pwq 9: cpus=0-1 node=0 flags=0x6 nice=-20 active=1 refcnt=4
    in-flight: 5840:hci_cmd_sync_work for 76s
workqueue hci4: flags=0x20012
  pwq 9: cpus=0-1 node=0 flags=0x6 nice=-20 active=1 refcnt=4
    in-flight: 5843:hci_cmd_sync_work for 76s
workqueue wg-kex-wg0: flags=0x124
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-kex-wg0: flags=0x6
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
    in-flight: 6547:wg_packet_handshake_send_worker for 41s
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=0x124
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-kex-wg1: flags=0x6
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=2 refcnt=3
    in-flight: 6545:wg_packet_handshake_send_worker for 48s
    pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: 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-wg2: flags=0x124
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=2 refcnt=3
    in-flight: 5946:wg_packet_handshake_receive_worker for 99s wg_packet_handshake_receive_worker
workqueue wg-kex-wg2: flags=0x6
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=2 refcnt=3
    in-flight: 6553:wg_packet_handshake_send_worker for 4s
    pending: 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
workqueue wg-kex-wg0: flags=0x124
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_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=0x128
  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-wg0: flags=0x124
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-kex-wg0: flags=0x6
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=2 refcnt=3
    in-flight: 6567:wg_packet_handshake_send_worker for 16s
    pending: 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=0x6 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=3 refcnt=4
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker
workqueue wg-kex-wg0: flags=0x124
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_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=0x128
  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-wg1: flags=0x6
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=3 refcnt=4
    in-flight: 1121:wg_packet_handshake_send_worker for 36s wg_packet_handshake_send_worker
    pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: 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-wg0: flags=0x124
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=2 refcnt=3
    in-flight: 5922:wg_packet_handshake_receive_worker for 19s
    pending: wg_packet_handshake_receive_worker
workqueue wg-kex-wg0: flags=0x6
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=2 refcnt=3
    in-flight: 49:wg_packet_handshake_send_worker for 53s
    pending: 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_decrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg2: flags=0x124
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=2 refcnt=3
    in-flight: 796:wg_packet_handshake_receive_worker for 89s
    pending: wg_packet_handshake_receive_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=0x128
  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=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-wg2: flags=0x124
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=2 refcnt=3
    in-flight: 29:wg_packet_handshake_receive_worker for 124s wg_packet_handshake_receive_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
workqueue wg-kex-wg1: flags=0x6
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
    in-flight: 12:wg_packet_handshake_send_worker for 4s
workqueue wg-crypt-wg1: flags=0x128
  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=0x124
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=2 refcnt=3
    in-flight: 5931:wg_packet_handshake_receive_worker for 101s wg_packet_handshake_receive_worker
workqueue wg-kex-wg2: flags=0x6
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
    in-flight: 167:wg_packet_handshake_send_worker for 6s
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
workqueue wg-kex-wg2: flags=0x124
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2
    in-flight: 24:wg_packet_handshake_receive_worker for 82s
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
pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=155s workers=8 idle: 5895 5191 5915 9 980 5831 5908
pool 6: cpus=1 node=0 flags=0x2 nice=0 hung=1s workers=8 manager: 6582
pool 8: cpus=0-1 flags=0x6 nice=0 hung=0s workers=26 manager: 1159
pool 9: cpus=0-1 node=0 flags=0x6 nice=-20 hung=0s workers=8 manager: 5145 idle: 5845 5836
Showing backtraces of busy workers in stalled worker pools:
pool 2:
task:kworker/0:1     state:R  running task     stack:25440 pid:10    tgid:10    ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events_long defense_work_handler
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5298 [inline]
 __schedule+0x15dd/0x52d0 kernel/sched/core.c:6911
 preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:7095
 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
 __local_bh_enable_ip+0xe1/0x130 kernel/softirq.c:457
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 update_defense_level+0x91e/0xd70 net/netfilter/ipvs/ip_vs_ctl.c:209
 defense_work_handler+0x2d/0xd0 net/netfilter/ipvs/ip_vs_ctl.c:234
 process_one_work kernel/workqueue.c:3276 [inline]
 process_scheduled_works+0xb6e/0x18c0 kernel/workqueue.c:3359
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3440
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>