BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 41s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=13 refcnt=14
    pending: 4*nsim_dev_hwstats_traffic_work, 2*psi_avgs_work, vmstat_shepherd, 4*ovs_dp_masks_rebalance, free_obj_work, psi_avgs_work
workqueue events_highpri: flags=0x10
  pwq 3: cpus=0 node=0 flags=0x0 nice=-20 active=1 refcnt=3
    pending: flush_backlog BAR(8346)
workqueue events_long: flags=0x0
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=5 refcnt=6
    in-flight: 6592:defense_work_handler
    pending: 4*defense_work_handler
  pwq 6: cpus=1 node=0 flags=0x0 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=13 refcnt=14
    in-flight: 7517:cfg80211_wiphy_work cfg80211_wiphy_work ,13:cfg80211_wiphy_work cfg80211_wiphy_work ,7518:cfg80211_wiphy_work cfg80211_wiphy_work ,4119:cfg80211_wiphy_work cfg80211_wiphy_work ,397:cfg80211_wiphy_work cfg80211_wiphy_work
    pending: macvlan_process_broadcast, 2*nsim_dev_trap_report_work
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=22 refcnt=23
    in-flight: 2675:cfg80211_wiphy_work cfg80211_wiphy_work ,377:cfg80211_wiphy_work cfg80211_wiphy_work ,41:cfg80211_wiphy_work cfg80211_wiphy_work ,42:cfg80211_wiphy_work cfg80211_wiphy_work ,8358:nsim_dev_trap_report_work ,12:cfg80211_wiphy_work cfg80211_wiphy_work
    pending: flush_memcg_stats_dwork, 5*macvlan_process_broadcast, 2*nsim_dev_trap_report_work, toggle_allocation_gate, 2*nsim_dev_trap_report_work
workqueue events_power_efficient: flags=0x82
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=3 refcnt=4
    in-flight: 60:neigh_periodic_work ,157:reg_check_chans_work
    pending: neigh_managed_work
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=4 refcnt=5
    pending: neigh_periodic_work, gc_worker, wg_ratelimiter_gc_entries, neigh_managed_work
workqueue events_freezable_pwr_efficient: flags=0x86
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
    pending: sync_hw_clock
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=3 refcnt=4
    pending: blk_mq_requeue_work, 2*blk_mq_timeout_work
workqueue ipv6_addrconf: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=7
    in-flight: 4172(RESCUER):addrconf_verify_work
    inactive: 2*addrconf_verify_work
workqueue bat_events: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=46
    in-flight: 4253(RESCUER):batadv_tt_purge
    inactive: 3*batadv_tt_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, 5*batadv_nc_worker, 5*batadv_mcast_mla_update, 4*batadv_purge_orig, 5*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 7*batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge, batadv_bla_periodic_work, batadv_dat_purge
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
  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=2 refcnt=3
    pending: wg_packet_tx_worker, wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x24
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_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=0x24
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    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=0x28
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3
    pending: wg_packet_tx_worker, wg_packet_encrypt_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_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=3 refcnt=4
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_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_tx_worker, wg_packet_encrypt_worker
workqueue hci3: flags=0x20012
  pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4
    in-flight: 6541: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=2 refcnt=3
    pending: wg_packet_tx_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=3 refcnt=4
    pending: wg_packet_tx_worker, wg_packet_encrypt_worker, wg_packet_decrypt_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_tx_worker, wg_packet_encrypt_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_encrypt_worker, wg_packet_decrypt_worker, wg_packet_tx_worker
workqueue loop5: flags=0x6
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
    pending: loop_rootcg_workfn
workqueue btree_update: flags=0xa
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=3
    in-flight: 8324(RESCUER):btree_interior_update_work
pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=41s workers=9 idle: 6305 1815 11 6579 6606 9 6640 6599
pool 8: cpus=0-1 flags=0x6 nice=0 hung=0s workers=14 manager: 8359
pool 9: cpus=0-1 node=0 flags=0x4 nice=-20 hung=0s workers=6 idle: 6093 6533 6535 6542 52
Showing backtraces of running workers in stalled CPU-bound worker pools:
pool 2:
task:kworker/0:5     state:R  running task     stack:0     pid:6592  tgid:6592  ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events_long defense_work_handler
Call trace:
 __switch_to+0x414/0x834 arch/arm64/kernel/process.c:742 (T)
 context_switch kernel/sched/core.c:5401 [inline]
 __schedule+0x1414/0x2a28 kernel/sched/core.c:6790
 preempt_schedule_common+0xe0/0x194 kernel/sched/core.c:6970
 preempt_schedule+0x60/0x80 kernel/sched/core.c:6994
 __local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:414
 local_bh_enable+0x28/0x34 include/linux/bottom_half.h:33
 update_defense_level+0x5ec/0x984 net/netfilter/ipvs/ip_vs_ctl.c:210
 defense_work_handler+0x30/0xdc net/netfilter/ipvs/ip_vs_ctl.c:235
 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3321 [inline]
 worker_thread+0x958/0xed8 kernel/workqueue.c:3402
 kthread+0x5fc/0x75c kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:843