BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 34s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x100
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=24 refcnt=25
    in-flight: 857:nsim_fib_event_work for 39s ,4796:nsim_fib_event_work for 38s ,9:nsim_fib_event_work for 37s
    pending: 3*nsim_dev_hwstats_traffic_work, free_obj_work, 3*rht_deferred_worker, ovs_dp_masks_rebalance, vmstat_shepherd, l2cap_info_timeout, ovs_dp_masks_rebalance, 3*l2cap_info_timeout, 2*ovs_dp_masks_rebalance, psi_avgs_work, nsim_fib_event_work, pcpu_balance_workfn, 2*nsim_fib_event_work
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3
    in-flight: 858:drm_fb_helper_damage_work for 3s
    pending: psi_avgs_work
workqueue events_long: flags=0x100
  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=0x0 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=8 refcnt=9
    in-flight: 14:cfg80211_wiphy_work for 32s cfg80211_wiphy_work ,1315:fsnotify_mark_destroy_workfn for 37s ,1445:fsnotify_connector_destroy_workfn for 38s ,4933:cfg80211_wiphy_work for 35s cfg80211_wiphy_work ,40:cfg80211_wiphy_work for 38s cfg80211_wiphy_work
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=9 refcnt=10
    in-flight: 366:cfg80211_wiphy_work for 7s
    pending: 2*macvlan_process_broadcast, nsim_dev_trap_report_work, toggle_allocation_gate, nsim_dev_trap_report_work, flush_memcg_stats_dwork, nsim_dev_trap_report_work, cfg80211_wiphy_work
workqueue events_power_efficient: flags=0x182
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=3 refcnt=4
    pending: wg_ratelimiter_gc_entries, do_cache_clean, fb_flashcursor
workqueue rcu_gp: flags=0x108
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: srcu_invoke_callbacks
workqueue netns: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4
    in-flight: 39:cleanup_net for 40s
workqueue mm_percpu_wq: flags=0x108
  pwq 2: cpus=0 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=4 MAYDAY
    in-flight: 33(RESCUER):wb_workfn for 34s
workqueue mld: flags=0x40108
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=97
    pending: mld_dad_work
    inactive: 3*mld_ifc_work, mld_dad_work, 4*mld_ifc_work, mld_dad_work, 5*mld_ifc_work, mld_dad_work, mld_ifc_work, mld_dad_work, 3*mld_ifc_work, 2*mld_dad_work, 5*mld_ifc_work, 2*mld_dad_work, 5*mld_ifc_work, mld_dad_work, 7*mld_ifc_work, 2*mld_dad_work, mld_ifc_work, 2*mld_dad_work, mld_ifc_work, 2*mld_dad_work, 3*mld_ifc_work, 2*mld_dad_work, 2*mld_ifc_work, mld_dad_work, 6*mld_ifc_work, 3*mld_dad_work, 3*mld_ifc_work, 2*mld_dad_work, 4*mld_ifc_work, 3*mld_dad_work, 2*mld_ifc_work, mld_dad_work, mld_ifc_work, 12*mld_dad_work
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=48
    in-flight: 4734:mld_ifc_work for 1s
    inactive: mld_ifc_work, mld_dad_work, 2*mld_ifc_work, 2*mld_dad_work, 2*mld_ifc_work, 2*mld_dad_work, 4*mld_ifc_work, 2*mld_dad_work, mld_ifc_work, mld_dad_work, mld_ifc_work, 2*mld_dad_work, 2*mld_ifc_work, 13*mld_dad_work, mld_ifc_work, 9*mld_dad_work
workqueue ipv6_addrconf: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=152 MAYDAY
    in-flight: 2783(RESCUER):addrconf_dad_work for 0s
    pending: mayday_cursor_func
    inactive: 146*addrconf_dad_work
workqueue bat_events: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=50 MAYDAY
    in-flight: 2821(RESCUER):batadv_tt_purge for 14s
    pending: mayday_cursor_func
    inactive: 2*batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge, 4*batadv_iv_send_outstanding_bat_ogm_packet, 2*batadv_tt_purge, batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge, batadv_iv_send_outstanding_bat_ogm_packet, 2*batadv_purge_orig, 4*batadv_iv_send_outstanding_bat_ogm_packet, 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_mcast_mla_update, 3*batadv_iv_send_outstanding_bat_ogm_packet, 4*batadv_purge_orig, batadv_tt_purge
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
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=3 refcnt=4
    in-flight: 24:wg_packet_encrypt_worker for 2s
    pending: wg_packet_decrypt_worker, wg_packet_encrypt_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
workqueue wg-kex-wg1: flags=0x6
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
    in-flight: 1171: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_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
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-wg0: flags=0x124
  pwq 2: cpus=0 node=0 flags=0x0 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: 1335:wg_packet_handshake_send_worker for 4s
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
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_decrypt_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 11s
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
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
    in-flight: 4428:wg_packet_encrypt_worker for 2s
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
  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-wg0: flags=0x124
  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=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
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3
    pending: wg_packet_decrypt_worker, wg_packet_tx_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
workqueue wg-crypt-wg1: 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=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
pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=34s workers=8 idle: 4930 10 4896 4909 4823
pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=1s workers=5 idle: 26
pool 8: cpus=0-1 flags=0x6 nice=0 hung=0s workers=11 manager: 4934
Showing backtraces of busy workers in stalled worker pools:
pool 2:
task:kworker/0:2     state:R  running task     stack:0     pid:857   tgid:857   ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events nsim_fib_event_work
Call trace:
 __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T)
 context_switch kernel/sched/core.c:5387 [inline]
 __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188
 __schedule_loop kernel/sched/core.c:7267 [inline]
 schedule+0xa4/0x140 kernel/sched/core.c:7282
 schedule_timeout+0x13c/0x294 kernel/time/sleep_timeout.c:99
 schedule_timeout_uninterruptible+0x7c/0xbc 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+0x5270/0x5c5c drivers/net/netdevsim/fib.c:889
 nsim_fib_event_work+0x1cc/0x30c drivers/net/netdevsim/fib.c:1493
 process_one_work+0x78c/0x173c kernel/workqueue.c:3302
 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385
 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466
 kthread+0x2f0/0x3c0 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842
pool 2:
task:kworker/0:3     state:R  running task     stack:0     pid:4796  tgid:4796  ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events nsim_fib_event_work
Call trace:
 __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T)
 context_switch kernel/sched/core.c:5387 [inline]
 __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188
 __schedule_loop kernel/sched/core.c:7267 [inline]
 schedule+0xa4/0x140 kernel/sched/core.c:7282
 schedule_timeout+0x13c/0x294 kernel/time/sleep_timeout.c:99
 schedule_timeout_uninterruptible+0x7c/0xbc 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+0x5070/0x5c5c drivers/net/netdevsim/fib.c:884
 nsim_fib_event_work+0x1cc/0x30c drivers/net/netdevsim/fib.c:1493
 process_one_work+0x78c/0x173c kernel/workqueue.c:3302
 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385
 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466
 kthread+0x2f0/0x3c0 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842
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 nsim_fib_event_work
Call trace:
 __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T)
 context_switch kernel/sched/core.c:5387 [inline]
 __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188
 preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7369
 preempt_schedule+0x60/0x78 kernel/sched/core.c:7393
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
 _raw_spin_unlock_irqrestore+0x94/0x98 kernel/locking/spinlock.c:198
 __debug_check_no_obj_freed lib/debugobjects.c:1125 [inline]
 debug_check_no_obj_freed+0x2e4/0x3c0 lib/debugobjects.c:1146
 __free_pages_prepare mm/page_alloc.c:1409 [inline]
 __free_frozen_pages+0x488/0xb90 mm/page_alloc.c:2943
 free_frozen_pages+0x14/0x20 mm/page_alloc.c:2981
 __free_slab+0x11c/0x1b4 mm/slub.c:3541
 free_slab+0x2c/0x154 mm/slub.c:3575
 discard_slab+0x48/0x90 mm/slub.c:3581
 __slab_free+0x1a8/0x1d8 mm/slub.c:5608
 ___cache_free+0x80/0x94 mm/slub.c:6318
 qlink_free+0x48/0x90 mm/kasan/quarantine.c:163
 qlist_free_all+0x88/0xb0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x118/0x124 mm/kasan/quarantine.c:286
 __kasan_kmalloc+0x2c/0xb4 mm/kasan/common.c:406
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x284/0x56c mm/slub.c:5415
 kmalloc_noprof include/linux/slab.h:950 [inline]
 kzalloc_noprof include/linux/slab.h:1188 [inline]
 nsim_fib6_rt_nh_add+0x64/0x214 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+0xae8/0x5c5c drivers/net/netdevsim/fib.c:889
 nsim_fib_event_work+0x1cc/0x30c drivers/net/netdevsim/fib.c:1493
 process_one_work+0x78c/0x173c kernel/workqueue.c:3302
 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385
 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466
 kthread+0x2f0/0x3c0 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842