BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 39s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x100
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=8 refcnt=9
    in-flight: 867:request_firmware_work_func for 86s
    pending: nsim_dev_hwstats_traffic_work, vmstat_shepherd, 3*psi_avgs_work, 2*ovs_dp_masks_rebalance
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=15 refcnt=16
    in-flight: 1367:nsim_fib_event_work for 47s ,4804:nsim_fib_event_work for 43s nsim_fib_event_work ,26:nsim_fib_event_work for 53s ,4803:nsim_fib_event_work for 55s nsim_fib_event_work
    pending: 4*nsim_dev_hwstats_traffic_work, psi_avgs_work, 4*ovs_dp_masks_rebalance
workqueue events_long: flags=0x100
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4
    pending: 3*defense_work_handler
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=3 refcnt=4
    pending: 3*defense_work_handler
workqueue events_unbound: flags=0x2
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=23 refcnt=24
    in-flight: 15:cfg80211_wiphy_work for 19s ,40:cfg80211_wiphy_work for 19s ,12:cfg80211_wiphy_work for 50s cfg80211_wiphy_work
    pending: crng_reseed, 4*macvlan_process_broadcast, flush_memcg_stats_dwork, macvlan_process_broadcast, toggle_allocation_gate, macvlan_process_broadcast, nsim_dev_trap_report_work, macvlan_process_broadcast, nsim_dev_trap_report_work, cfg80211_wiphy_work, nsim_dev_trap_report_work, cfg80211_wiphy_work, 2*nsim_dev_trap_report_work, 2*macvlan_process_broadcast
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=15 refcnt=16
    in-flight: 1226:cfg80211_wiphy_work for 3s ,1117:cfg80211_wiphy_work for 45s ,1454:cfg80211_wiphy_work for 43s ,1517:cfg80211_wiphy_work for 47s ,39:cfg80211_wiphy_work for 49s ,833:cfg80211_wiphy_work for 44s
    pending: call_usermodehelper_exec_work, 3*cfg80211_wiphy_work, call_usermodehelper_exec_work, 4*cfg80211_wiphy_work
workqueue events_power_efficient: flags=0x82
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=7 refcnt=8
    pending: neigh_periodic_work, fb_flashcursor, neigh_managed_work, wg_ratelimiter_gc_entries, do_cache_clean, gc_worker, neigh_managed_work
workqueue mm_percpu_wq: flags=0x108
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: vmstat_update
  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=4 MAYDAY
    in-flight: 33(RESCUER):wb_workfn for 32s
    pending: mayday_cursor_func
workqueue bat_events: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=45 MAYDAY
    in-flight: 2853(RESCUER):batadv_tt_purge for 6s
    pending: mayday_cursor_func
    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, 5*batadv_mcast_mla_update, 4*batadv_iv_send_outstanding_bat_ogm_packet, 3*batadv_purge_orig, 7*batadv_iv_send_outstanding_bat_ogm_packet, 2*batadv_purge_orig, 4*batadv_iv_send_outstanding_bat_ogm_packet, batadv_bla_periodic_work, batadv_dat_purge, batadv_tt_purge
workqueue ext4-rsv-conversion: flags=0xa
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 MAYDAY
    in-flight: 4309(RESCUER):ext4_end_io_rsv_work for 0s
    pending: mayday_cursor_func
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=0x128
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_encrypt_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=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=0x128
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=3 refcnt=4
    pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-crypt-wg2: flags=0x128
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_encrypt_worker
  pwq 6: cpus=1 node=0 flags=0x0 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=0x6 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x128
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_encrypt_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-crypt-wg1: flags=0x128
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_encrypt_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-crypt-wg2: flags=0x128
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_encrypt_worker
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3
    pending: wg_packet_decrypt_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=0x128
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_encrypt_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=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=0x128
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: 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-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=1 refcnt=2
    pending: wg_packet_encrypt_worker
  pwq 6: cpus=1 node=0 flags=0x0 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=0x6 nice=0 active=1 refcnt=2
    pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x128
  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-wg1: flags=0x128
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: 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_decrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg2: 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-wg2: flags=0x128
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: 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-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=0x128
  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=1 refcnt=2
    pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x128
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_encrypt_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-wg2: 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-wg2: flags=0x128
  pwq 6: cpus=1 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=23s workers=6 idle: 4812 9 4718 10 4310
pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=39s workers=9 idle: 4805 24 4819 4839 4972
pool 8: cpus=0-1 flags=0x6 nice=0 hung=0s workers=10 manager: 5052
Showing backtraces of busy workers in stalled worker pools:
pool 6:
task:kworker/1:2     state:R  running task     stack:0     pid:1367  tgid:1367  ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events nsim_fib_event_work
Call trace:
 __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:775 (T)
 context_switch kernel/sched/core.c:5510 [inline]
 __schedule+0x1370/0x2d80 kernel/sched/core.c:7234
 __schedule_loop kernel/sched/core.c:7311 [inline]
 schedule+0x13c/0x20c kernel/sched/core.c:7326
 schedule_timeout+0x13c/0x28c kernel/time/sleep_timeout.c:99
 schedule_timeout_uninterruptible+0x78/0xbc 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+0x57a0/0x60c4 drivers/net/netdevsim/fib.c:889
 nsim_fib_event_work+0x1d8/0x320 drivers/net/netdevsim/fib.c:1493
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3405
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3486
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842
pool 6:
task:kworker/1:4     state:R  running task     stack:0     pid:4804  tgid:4804  ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events nsim_fib_event_work
Call trace:
 __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:775 (T)
 context_switch kernel/sched/core.c:5510 [inline]
 __schedule+0x1370/0x2d80 kernel/sched/core.c:7234
 __schedule_loop kernel/sched/core.c:7311 [inline]
 schedule+0x13c/0x20c kernel/sched/core.c:7326
 schedule_timeout+0x13c/0x28c kernel/time/sleep_timeout.c:99
 schedule_timeout_uninterruptible+0x78/0xbc 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+0x57a0/0x60c4 drivers/net/netdevsim/fib.c:889
 nsim_fib_event_work+0x1d8/0x320 drivers/net/netdevsim/fib.c:1493
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3405
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3486
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842
pool 6:
task:kworker/1:1     state:R  running task     stack:0     pid:26    tgid:26    ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events nsim_fib_event_work
Call trace:
 __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:775 (T)
 context_switch kernel/sched/core.c:5510 [inline]
 __schedule+0x1370/0x2d80 kernel/sched/core.c:7234
 preempt_schedule_irq+0x74/0x174 kernel/sched/core.c:7556
 raw_irqentry_exit_cond_resched+0x30/0x40 kernel/entry/common.c:145
 irqentry_exit_to_kernel_mode_preempt+0x44/0x54 include/linux/irq-entry-common.h:468
 arm64_exit_to_kernel_mode+0x3c/0x94 arch/arm64/kernel/entry-common.c:59
 __el1_irq arch/arm64/kernel/entry-common.c:512 [inline]
 el1_interrupt+0x4c/0x60 arch/arm64/kernel/entry-common.c:522
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:527
 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:590
 write_comp_data+0x8/0x84 kernel/kcov.c:240 (P)
 __page_table_check_zero+0x228/0x40c mm/page_table_check.c:143
 page_table_check_free include/linux/page_table_check.h:46 [inline]
 __free_pages_prepare mm/page_alloc.c:1407 [inline]
 __free_frozen_pages+0xaec/0xbb8 mm/page_alloc.c:2950
 free_frozen_pages+0x14/0x20 mm/page_alloc.c:2988
 __free_slab+0x11c/0x1b4 mm/slub.c:3441
 free_slab+0x2c/0x154 mm/slub.c:3475
 discard_slab+0x48/0x90 mm/slub.c:3481
 __slab_free+0x1a0/0x1d0 mm/slub.c:5741
 ___cache_free+0x80/0x94 mm/slub.c:6449
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0xb4/0x120 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+0x2e8/0x5ec mm/slub.c:5489
 _kmalloc_noprof include/linux/slab.h:988 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 nsim_fib6_rt_create drivers/net/netdevsim/fib.c:547 [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+0xa04/0x60c4 drivers/net/netdevsim/fib.c:889
 nsim_fib_event_work+0x1d8/0x320 drivers/net/netdevsim/fib.c:1493
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3405
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3486
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842
pool 6:
task:kworker/1:3     state:R  running task     stack:0     pid:4803  tgid:4803  ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events nsim_fib_event_work
Call trace:
 __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:775 (T)
 context_switch kernel/sched/core.c:5510 [inline]
 __schedule+0x1370/0x2d80 kernel/sched/core.c:7234
 __schedule_loop kernel/sched/core.c:7311 [inline]
 schedule+0x13c/0x20c kernel/sched/core.c:7326
 schedule_timeout+0x13c/0x28c kernel/time/sleep_timeout.c:99
 schedule_timeout_uninterruptible+0x78/0xbc 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+0x57a0/0x60c4 drivers/net/netdevsim/fib.c:889
 nsim_fib_event_work+0x1d8/0x320 drivers/net/netdevsim/fib.c:1493
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3405
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3486
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842