BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 49s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3
    in-flight: 6753:free_ipc
    pending: nsim_dev_hwstats_traffic_work
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=13 refcnt=14
    in-flight: 24:nsim_fib_event_work ,6132:nsim_fib_event_work nsim_fib_event_work
    pending: 2*nsim_dev_hwstats_traffic_work, drm_fb_helper_damage_work, rht_deferred_worker, psi_avgs_work, 4*ovs_dp_masks_rebalance, free_obj_work
workqueue events_long: flags=0x0
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=6 refcnt=7
    in-flight: 6586:defense_work_handler
    pending: 5*defense_work_handler
workqueue events_unbound: flags=0x2
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=7 refcnt=8
    in-flight: 42:cfg80211_wiphy_work cfg80211_wiphy_work ,6750:nsim_dev_trap_report_work ,2131:nsim_dev_trap_report_work
    pending: nsim_dev_trap_report_work, toggle_allocation_gate
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=7 refcnt=8
    in-flight: 2152:linkwatch_event linkwatch_event ,5037:cfg80211_wiphy_work cfg80211_wiphy_work ,6748:cfg80211_wiphy_work cfg80211_wiphy_work ,779:cfg80211_wiphy_work cfg80211_wiphy_work
workqueue events_power_efficient: flags=0x82
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=4 refcnt=5
    pending: gc_worker, do_cache_clean, wg_ratelimiter_gc_entries, fb_flashcursor
workqueue rcu_gp: flags=0x8
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: process_srcu
workqueue netns: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4
    in-flight: 12:cleanup_net
workqueue mm_percpu_wq: flags=0x8
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: vmstat_update
workqueue writeback: flags=0x4a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
    in-flight: 14:wb_workfn
workqueue mld: flags=0x40008
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=45
    pending: mld_ifc_work
    inactive: mld_ifc_work, mld_dad_work, mld_ifc_work, mld_dad_work, 2*mld_ifc_work, 2*mld_dad_work, 2*mld_ifc_work, 2*mld_dad_work, 5*mld_ifc_work, 2*mld_dad_work, 6*mld_ifc_work, 3*mld_dad_work, 2*mld_ifc_work, 2*mld_dad_work, 2*mld_ifc_work, mld_dad_work, 8*mld_ifc_work
workqueue ipv6_addrconf: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=206
    in-flight: 263:addrconf_dad_work
    inactive: 202*addrconf_dad_work
workqueue bat_events: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=55
    in-flight: 4273(RESCUER):batadv_tt_purge
    inactive: 4*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_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, 6*batadv_nc_worker, 5*batadv_mcast_mla_update, 3*batadv_purge_orig, batadv_mcast_mla_update, 2*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 6*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 6*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge
workqueue ext4-rsv-conversion: flags=0xa
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
    in-flight: 41:ext4_end_io_rsv_work
workqueue wg-crypt-wg0: flags=0x28
  pwq 6: cpus=1 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=2 refcnt=3
    pending: 2*wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-crypt-wg2: flags=0x28
  pwq 6: cpus=1 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=1 refcnt=2
    pending: wg_packet_tx_worker
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg1: flags=0x24
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg1: flags=0x28
  pwq 6: cpus=1 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=0x24
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3
    in-flight: 6589:wg_packet_handshake_receive_worker
    pending: wg_packet_handshake_receive_worker
  pwq 6: cpus=1 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_decrypt_worker, wg_packet_encrypt_worker
  pwq 6: cpus=1 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-wg0: flags=0x28
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3
    pending: wg_packet_tx_worker, 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_decrypt_worker
  pwq 6: cpus=1 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=0x24
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    in-flight: 2295:wg_packet_handshake_receive_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_decrypt_worker
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=3 refcnt=4
    pending: wg_packet_encrypt_worker, wg_packet_decrypt_worker, wg_packet_tx_worker
pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=0s workers=6 idle: 6670 10 9
pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=49s workers=6 idle: 6747 26 6735
pool 8: cpus=0-1 flags=0x6 nice=0 hung=0s workers=13 manager: 6754 idle: 6751
Showing backtraces of running workers in stalled CPU-bound worker pools:
pool 6:
task:kworker/1:0     state:R  running task     stack:0     pid:24    tgid:24    ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events nsim_fib_event_work
Call trace:
 __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T)
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x13b0/0x2864 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xb4/0x230 kernel/sched/core.c:7058
 schedule_timeout+0x128/0x270 kernel/time/sleep_timeout.c:99
 schedule_timeout_uninterruptible+0x7c/0xc0 kernel/time/sleep_timeout.c:158
 msleep+0x3c/0x68 kernel/time/sleep_timeout.c:318
 nsim_fib4_rt_add drivers/net/netdevsim/fib.c:369 [inline]
 nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:432 [inline]
 nsim_fib4_event drivers/net/netdevsim/fib.c:464 [inline]
 nsim_fib_event drivers/net/netdevsim/fib.c:884 [inline]
 nsim_fib_event_work+0x13a4/0x25b8 drivers/net/netdevsim/fib.c:1493
 process_one_work+0x7e8/0x155c kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x990/0xed8 kernel/workqueue.c:3400
 kthread+0x5fc/0x75c kernel/kthread.c:463
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844
pool 6:
task:kworker/1:3     state:R  running task     stack:0     pid:6586  tgid:6586  ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events_long defense_work_handler
Call trace:
 __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T)
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x13b0/0x2864 kernel/sched/core.c:6961
 preempt_schedule_common+0xe0/0x194 kernel/sched/core.c:7145
 preempt_schedule+0x60/0x80 kernel/sched/core.c:7169
 __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:3236
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x958/0xed8 kernel/workqueue.c:3400
 kthread+0x5fc/0x75c kernel/kthread.c:463
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844
pool 6:
task:kworker/1:2     state:R  running task     stack:0     pid:6132  tgid:6132  ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events nsim_fib_event_work
Call trace:
 __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T)
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x13b0/0x2864 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xb4/0x230 kernel/sched/core.c:7058
 schedule_timeout+0x128/0x270 kernel/time/sleep_timeout.c:99
 schedule_timeout_uninterruptible+0x7c/0xc0 kernel/time/sleep_timeout.c:158
 msleep+0x3c/0x68 kernel/time/sleep_timeout.c:318
 nsim_fib6_rt_add drivers/net/netdevsim/fib.c:693 [inline]
 nsim_fib6_rt_insert drivers/net/netdevsim/fib.c:759 [inline]
 nsim_fib6_event drivers/net/netdevsim/fib.c:856 [inline]
 nsim_fib_event drivers/net/netdevsim/fib.c:889 [inline]
 nsim_fib_event_work+0x1bc4/0x25b8 drivers/net/netdevsim/fib.c:1493
 process_one_work+0x7e8/0x155c kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x990/0xed8 kernel/workqueue.c:3400
 kthread+0x5fc/0x75c kernel/kthread.c:463
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844