BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 40s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=8 refcnt=9
    pending: 2*nsim_dev_hwstats_traffic_work, psi_avgs_work, 4*ovs_dp_masks_rebalance, psi_avgs_work
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=14 refcnt=15
    pending: free_obj_work, 3*nsim_dev_hwstats_traffic_work, delayed_vfree_work, 3*psi_avgs_work, 2*ovs_dp_masks_rebalance, l2cap_chan_timeout, psi_avgs_work, drm_fb_helper_damage_work, l2cap_chan_timeout
workqueue events_long: flags=0x0
  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=5 refcnt=6
    in-flight: 14:cfg80211_wiphy_work cfg80211_wiphy_work ,678:cfg80211_wiphy_work cfg80211_wiphy_work
    pending: cfg80211_wiphy_work
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=10 refcnt=11
    in-flight: 41:cfg80211_wiphy_work cfg80211_wiphy_work ,42:nsim_dev_trap_report_work ,12:nsim_dev_trap_report_work ,777:cfg80211_wiphy_work cfg80211_wiphy_work ,608:nsim_dev_trap_report_work
    pending: nsim_dev_trap_report_work, toggle_allocation_gate, nsim_dev_trap_report_work
workqueue events_power_efficient: flags=0x82
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
    pending: neigh_periodic_work
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=3 refcnt=4
    in-flight: 6794:reg_check_chans_work ,200:neigh_periodic_work
    pending: fb_flashcursor
workqueue mm_percpu_wq: flags=0x8
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=4
    pending: vmstat_update, lru_add_drain_per_cpu BAR(8234)
workqueue writeback: flags=0x4a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
    in-flight: 2122:wb_workfn
workqueue bat_events: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=48
    in-flight: 266:batadv_tt_purge
    inactive: 3*batadv_tt_purge, 2*batadv_bla_periodic_work, 2*batadv_dat_purge, 2*batadv_bla_periodic_work, batadv_tt_purge, 2*batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, 4*batadv_nc_worker, 9*batadv_iv_send_outstanding_bat_ogm_packet, 3*batadv_purge_orig, 2*batadv_iv_send_outstanding_bat_ogm_packet, 2*batadv_purge_orig, 2*batadv_iv_send_outstanding_bat_ogm_packet, 5*batadv_mcast_mla_update, 2*batadv_iv_send_outstanding_bat_ogm_packet, batadv_nc_worker
workqueue vsock-loopback: flags=0x0
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3
    in-flight: 6593:vsock_loopback_work
    pending: vsock_loopback_work
workqueue wg-kex-wg0: 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-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-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_tx_worker, wg_packet_decrypt_worker
workqueue wg-kex-wg2: 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-wg2: flags=0x28
  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-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-kex-wg1: flags=0x6
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
    in-flight: 560: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=3 refcnt=4
    pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encrypt_worker
workqueue wg-crypt-wg0: flags=0x28
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: wg_packet_tx_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-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-crypt-wg2: flags=0x28
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=3 refcnt=4
    pending: wg_packet_tx_worker, wg_packet_decrypt_worker, wg_packet_encrypt_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_tx_worker, wg_packet_decrypt_worker
workqueue wg-crypt-wg2: flags=0x28
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=3 refcnt=4
    pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encrypt_worker
pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=40s workers=7 idle: 6604 26 3910 24 6579 6643
pool 8: cpus=0-1 flags=0x6 nice=0 hung=0s workers=13 manager: 2071
Showing backtraces of running workers in stalled CPU-bound worker pools:
pool 6:
task:kworker/1:4     state:R  running task     stack:0     pid:6593  tgid:6593  ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: vsock-loopback vsock_loopback_work
Call trace:
 __switch_to+0x414/0x834 arch/arm64/kernel/process.c:737 (T)
 context_switch kernel/sched/core.c:5396 [inline]
 __schedule+0x1414/0x2a28 kernel/sched/core.c:6785
 preempt_schedule_common+0xe0/0x194 kernel/sched/core.c:6965
 preempt_schedule+0x60/0x80 kernel/sched/core.c:6989
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock_irqrestore+0x94/0x98 kernel/locking/spinlock.c:194
 __debug_check_no_obj_freed lib/debugobjects.c:1108 [inline]
 debug_check_no_obj_freed+0x454/0x470 lib/debugobjects.c:1129
 free_pages_prepare mm/page_alloc.c:1255 [inline]
 __free_frozen_pages+0x4cc/0xd2c mm/page_alloc.c:2706
 free_frozen_pages+0x14/0x20 mm/page_alloc.c:2744
 __free_slab+0x110/0x1e8 mm/slub.c:2688
 free_slab+0x24/0x120 mm/slub.c:2711
 discard_slab+0x50/0xb8 mm/slub.c:2717
 __slab_free+0x1dc/0x280 mm/slub.c:4554
 do_slab_free mm/slub.c:4595 [inline]
 ___cache_free+0x150/0x170 mm/slub.c:4701
 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:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4148 [inline]
 slab_alloc_node mm/slub.c:4197 [inline]
 kmem_cache_alloc_node_noprof+0x240/0x3f4 mm/slub.c:4249
 kmalloc_reserve+0xc4/0x268 net/core/skbuff.c:579
 __alloc_skb+0x170/0x2ec net/core/skbuff.c:670
 alloc_skb include/linux/skbuff.h:1336 [inline]
 virtio_vsock_alloc_skb include/linux/virtio_vsock.h:67 [inline]
 virtio_transport_alloc_skb+0x64/0xd38 net/vmw_vsock/virtio_transport_common.c:264
 virtio_transport_reset_no_sock net/vmw_vsock/virtio_transport_common.c:1175 [inline]
 virtio_transport_recv_pkt+0x9f4/0x2084 net/vmw_vsock/virtio_transport_common.c:1610
 vsock_loopback_work+0x298/0x32c net/vmw_vsock/vsock_loopback.c:133
 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3321 [inline]
 worker_thread+0x990/0xed8 kernel/workqueue.c:3402
 kthread+0x5fc/0x75c kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847