BUG: workqueue lockup - pool cpus=0 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=21 refcnt=22
    in-flight: 6581:nsim_fib_event_work ,11:request_firmware_work_func
    pending: 2*nsim_dev_hwstats_traffic_work, psi_avgs_work, drm_fb_helper_damage_work, vmstat_shepherd, 2*destroy_super_work, 9*ovs_dp_masks_rebalance, destroy_super_work, free_obj_work, nsim_fib_event_work
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=7 refcnt=8
    in-flight: 24:nsim_fib_event_work ,6562:nsim_fib_event_work
    pending: nsim_dev_hwstats_traffic_work, 2*psi_avgs_work, ovs_dp_masks_rebalance, rfkill_global_led_trigger_worker
workqueue events_long: flags=0x0
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=4 refcnt=5
    pending: 4*defense_work_handler
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=6 refcnt=7
    pending: 6*defense_work_handler
workqueue events_unbound: flags=0x2
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=2 refcnt=3
    in-flight: 15:cfg80211_wiphy_work cfg80211_wiphy_work
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=18 refcnt=19
    in-flight: 4166:cfg80211_wiphy_work cfg80211_wiphy_work ,1529:cfg80211_wiphy_work cfg80211_wiphy_work ,41:cfg80211_wiphy_work cfg80211_wiphy_work ,268:cfg80211_wiphy_work cfg80211_wiphy_work ,6719:linkwatch_event ,12:cfg80211_wiphy_work cfg80211_wiphy_work
    pending: 3*nsim_dev_trap_report_work, 2*macvlan_process_broadcast, toggle_allocation_gate, flush_memcg_stats_dwork
workqueue events_power_efficient: flags=0x82
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=8 refcnt=9
    in-flight: 6720:reg_check_chans_work ,42:gc_worker
    pending: fb_flashcursor, neigh_periodic_work, wg_ratelimiter_gc_entries, do_cache_clean, 2*neigh_managed_work
workqueue kvfree_rcu_reclaim: flags=0xa
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=3 MAYDAY
    pending: kfree_rcu_monitor
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=3 MAYDAY
    pending: kfree_rcu_monitor
workqueue netns: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4
    in-flight: 2247:cleanup_net
workqueue mm_percpu_wq: flags=0x8
  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=2
    pending: vmstat_update
workqueue writeback: flags=0x4a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=3
    in-flight: 34(RESCUER):wb_workfn
workqueue gid-cache-wq: flags=0x20002
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4
    pending: netdevice_event_work_handler
workqueue mld: flags=0x40008
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=68
    pending: mld_ifc_work
    inactive: mld_ifc_work, mld_dad_work, mld_ifc_work, mld_dad_work, mld_ifc_work, 2*mld_dad_work, 2*mld_ifc_work, 2*mld_dad_work, 7*mld_ifc_work, mld_dad_work, 3*mld_ifc_work, 3*mld_dad_work, 5*mld_ifc_work, 6*mld_dad_work, 3*mld_ifc_work, 3*mld_dad_work, mld_ifc_work, 23*mld_dad_work
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=40
    pending: mld_ifc_work
    inactive: 4*mld_ifc_work, 34*mld_dad_work
workqueue ipv6_addrconf: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=129
    in-flight: 4198(RESCUER):addrconf_dad_work
    inactive: 123*addrconf_dad_work, addrconf_verify_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: 3*batadv_tt_purge, 2*batadv_nc_worker, 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, 3*batadv_nc_worker, 6*batadv_mcast_mla_update, 4*batadv_purge_orig, 5*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 9*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, batadv_iv_send_outstanding_bat_ogm_packet, batadv_nc_worker, 2*batadv_tt_purge
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-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-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
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2
    pending: wg_packet_encrypt_worker
workqueue wg-kex-wg0: flags=0x24
  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: 6700:wg_packet_handshake_receive_worker
    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=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
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=2 refcnt=3
    pending: wg_packet_tx_worker, wg_packet_encrypt_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-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
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2
    pending: 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
  pwq 6: cpus=1 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=0x0 nice=0 active=2 refcnt=3
    pending: wg_packet_tx_worker, wg_packet_encrypt_worker
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2
    pending: wg_packet_encrypt_worker
workqueue wg-kex-wg0: flags=0x24
  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=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
  pwq 6: cpus=1 node=0 flags=0x2 nice=0 active=1 refcnt=2
    pending: wg_packet_encrypt_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
  pwq 6: cpus=1 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=0x0 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=1 refcnt=2
    pending: 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-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
pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=49s workers=6 idle: 6131 6635 6645 9
pool 6: cpus=1 node=0 flags=0x2 nice=0 hung=14s workers=6 manager: 1818 idle: 26 6722
pool 8: cpus=0-1 flags=0x6 nice=0 hung=0s workers=11 manager: 6721
Showing backtraces of running workers in stalled CPU-bound worker pools:
pool 2:
task:kworker/0:3     state:R  running task     stack:0     pid:6581  tgid:6581  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
 preempt_schedule_irq+0x80/0x188 kernel/sched/core.c:7288
 raw_irqentry_exit_cond_resched+0x30/0x44 kernel/entry/common.c:168
 irqentry_exit+0xd4/0x108 kernel/entry/common.c:211
 __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:68 [inline]
 exit_to_kernel_mode+0x10/0x1c arch/arm64/kernel/entry-common.c:75
 __el1_irq arch/arm64/kernel/entry-common.c:522 [inline]
 el1_interrupt+0x4c/0x60 arch/arm64/kernel/entry-common.c:532
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:537
 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:592
 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P)
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P)
 put_cpu_partial+0x154/0x1c0 mm/slub.c:3295 (P)
 __slab_free+0x1a0/0x25c mm/slub.c:4565
 do_slab_free mm/slub.c:4647 [inline]
 ___cache_free+0x150/0x170 mm/slub.c:4753
 qlink_free+0x48/0x94 mm/kasan/quarantine.c:163
 qlist_free_all+0x44/0xb8 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x118/0x124 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x2c/0x88 mm/kasan/common.c:340
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4191 [inline]
 slab_alloc_node mm/slub.c:4240 [inline]
 __kmalloc_cache_noprof+0x238/0x3fc mm/slub.c:4402
 kmalloc_noprof include/linux/slab.h:905 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 nsim_fib6_rt_nh_add+0x64/0x218 drivers/net/netdevsim/fib.c:500
 nsim_fib6_rt_create drivers/net/netdevsim/fib.c:562 [inline]
 nsim_fib6_rt_insert drivers/net/netdevsim/fib.c:752 [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+0x14e8/0x25b8 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