BUG: workqueue lockup - pool cpus=0 node=0 flags=0x2 nice=0 stuck for 34s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=12 refcnt=13
    in-flight: 9:request_firmware_work_func ,6568:nsim_fib_event_work
    pending: psi_avgs_work, nsim_dev_hwstats_traffic_work, 4*ovs_dp_masks_rebalance, vmstat_shepherd, nsim_fib_event_work, free_obj_work, psi_avgs_work
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=19 refcnt=20
    in-flight: 1818:nsim_fib_event_work nsim_fib_event_work ,6603:nsim_fib_event_work ,26:nsim_fib_event_work nsim_fib_event_work ,24:nsim_fib_event_work nsim_fib_event_work
    pending: 2*psi_avgs_work, 2*ovs_dp_masks_rebalance, nsim_fib_event_work, 4*nsim_dev_hwstats_traffic_work, 2*rht_deferred_worker, psi_avgs_work
workqueue events_long: flags=0x0
  pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=3 refcnt=4
    pending: 3*defense_work_handler
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=3 refcnt=4
    pending: 3*defense_work_handler
workqueue events_unbound: flags=0x2
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=21 refcnt=22
    in-flight: 4766:cfg80211_wiphy_work cfg80211_wiphy_work ,1922:cfg80211_wiphy_work ,2137:cfg80211_wiphy_work cfg80211_wiphy_work ,12:cfg80211_wiphy_work cfg80211_wiphy_work ,763:cfg80211_wiphy_work cfg80211_wiphy_work ,15:cfg80211_wiphy_work cfg80211_wiphy_work ,4634:cfg80211_wiphy_work cfg80211_wiphy_work ,41:cfg80211_wiphy_work cfg80211_wiphy_work ,42:cfg80211_wiphy_work cfg80211_wiphy_work
    pending: macvlan_process_broadcast, cfg80211_wiphy_work, macvlan_process_broadcast, nsim_dev_trap_report_work
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=12 refcnt=13
    in-flight: 4553:cfg80211_wiphy_work cfg80211_wiphy_work
    pending: toggle_allocation_gate, 3*nsim_dev_trap_report_work, crng_reseed, 2*macvlan_process_broadcast, nsim_dev_trap_report_work, flush_memcg_stats_dwork, macvlan_process_broadcast
workqueue events_power_efficient: flags=0x82
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3
    pending: gc_worker, wg_ratelimiter_gc_entries
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=7 refcnt=8
    in-flight: 6683:neigh_periodic_work
    pending: fb_flashcursor, 2*neigh_managed_work, neigh_periodic_work, do_cache_clean, reg_check_chans_work
workqueue mm_percpu_wq: flags=0x8
  pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2
    pending: vmstat_update
workqueue writeback: flags=0x4a
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=5 MAYDAY
    in-flight: 34(RESCUER):wb_workfn wb_workfn
workqueue mld: flags=0x40008
  pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=62
    pending: mld_ifc_work
    inactive: mld_dad_work, 8*mld_ifc_work, 2*mld_dad_work, 4*mld_ifc_work, mld_dad_work, mld_ifc_work, 3*mld_dad_work, mld_ifc_work, mld_dad_work, mld_ifc_work, mld_dad_work, 9*mld_ifc_work, mld_dad_work, 11*mld_ifc_work, mld_dad_work, 6*mld_ifc_work, mld_dad_work, mld_ifc_work, 6*mld_dad_work
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=63
    in-flight: 4197(RESCUER):mld_ifc_work
    inactive: 2*mld_ifc_work, mld_dad_work, 5*mld_ifc_work, 52*mld_dad_work
workqueue ipv6_addrconf: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=357
    in-flight: 4198(RESCUER):addrconf_dad_work
    inactive: 352*addrconf_dad_work
workqueue bat_events: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=49
    in-flight: 4273(RESCUER):batadv_tt_purge
    inactive: 3*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, 4*batadv_nc_worker, 4*batadv_mcast_mla_update, batadv_nc_worker, batadv_mcast_mla_update, 2*batadv_purge_orig, 5*batadv_iv_send_outstanding_bat_ogm_packet, 3*batadv_purge_orig, 10*batadv_iv_send_outstanding_bat_ogm_packet, 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-crypt-wg0: flags=0x28
  pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=3 refcnt=4
    pending: wg_packet_tx_worker, wg_packet_encrypt_worker, wg_packet_decrypt_worker
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=2 refcnt=3
    in-flight: 6636:wg_packet_tx_worker wg_packet_tx_worker
workqueue wg-kex-wg1: flags=0x24
  pwq 2: cpus=0 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=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=0x2 nice=0 active=2 refcnt=3
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg2: flags=0x24
  pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x28
  pwq 2: cpus=0 node=0 flags=0x2 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=0x4 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=0x2 nice=0 active=3 refcnt=4
    pending: wg_packet_tx_worker, wg_packet_encrypt_worker, wg_packet_decrypt_worker
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 2: cpus=0 node=0 flags=0x2 nice=0 active=3 refcnt=4
    pending: wg_packet_tx_worker, wg_packet_encrypt_worker, wg_packet_decrypt_worker
workqueue wg-kex-wg1: flags=0x24
  pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg1: flags=0x28
  pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=3 refcnt=4
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker
workqueue wg-crypt-wg1: flags=0x28
  pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=3 refcnt=4
    pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg2: flags=0x24
  pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_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=0x2 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=0x4 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=0x2 nice=0 active=3 refcnt=4
    pending: wg_packet_encrypt_worker, wg_packet_decrypt_worker, wg_packet_tx_worker
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=2 refcnt=3
    in-flight: 6614:wg_packet_tx_worker wg_packet_tx_worker
workqueue wg-kex-wg2: flags=0x24
  pwq 2: cpus=0 node=0 flags=0x2 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-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=0x2 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=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=0x2 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=0x2 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x28
  pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=3 refcnt=4
    pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg0: flags=0x6
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
    in-flight: 331:wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x28
  pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=3 refcnt=4
    pending: wg_packet_tx_worker, wg_packet_encrypt_worker, wg_packet_decrypt_worker
workqueue wg-kex-wg1: flags=0x24
  pwq 2: cpus=0 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=0x4 nice=0 active=2 refcnt=3
    pending: 2*wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
  pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=2 refcnt=3
    pending: wg_packet_encrypt_worker, wg_packet_decrypt_worker
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=2 refcnt=3
    in-flight: 6616:wg_packet_encrypt_worker wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x24
  pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x28
  pwq 2: cpus=0 node=0 flags=0x2 nice=0 active=2 refcnt=3
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue loop3: flags=0x6
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
    pending: loop_rootcg_workfn
pool 2: cpus=0 node=0 flags=0x2 nice=0 hung=34s workers=6 manager: 6370 idle: 6664 6132 11
pool 6: cpus=1 node=0 flags=0x2 nice=0 hung=0s workers=8 manager: 6659
pool 8: cpus=0-1 flags=0x4 nice=0 hung=0s workers=13 idle: 6684
Showing backtraces of running workers in stalled CPU-bound worker pools:
pool 2:
task:kworker/0:0     state:R  running task     stack:0     pid:9     tgid:9     ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events request_firmware_work_func
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
 irq_work_queue+0xd0/0xfc kernel/irq_work.c:125
 nbcon_kthreads_wake+0xe4/0x19c kernel/printk/nbcon.c:1290
 vprintk_emit+0x268/0x430 kernel/printk/printk.c:2432
 vprintk_default+0x54/0x80 kernel/printk/printk.c:2465
 vprintk+0x90/0x128 kernel/printk/printk_safe.c:82
 _printk+0xd0/0x118 kernel/printk/printk.c:2475
 regdb_fw_cb+0x188/0x1a0 net/wireless/reg.c:-1
 request_firmware_work_func+0xe8/0x19c drivers/base/firmware_loader/main.c:1161
 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 2:
task:kworker/0:4     state:R  running task     stack:0     pid:6568  tgid:6568  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