BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 274s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 274s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 273s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=15/256 refcnt=16
    pending: nsim_dev_trap_report_work, nsim_dev_trap_report_work, psi_avgs_work, macvlan_process_broadcast, macvlan_process_broadcast, psi_avgs_work, psi_avgs_work, psi_avgs_work, ovs_dp_masks_rebalance, macvlan_process_broadcast, macvlan_process_broadcast, macvlan_process_broadcast, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=14/256 refcnt=15
    in-flight: 1109:request_firmware_work_func
    pending: nsim_dev_trap_report_work, nsim_dev_trap_report_work, nsim_dev_trap_report_work, psi_avgs_work, psi_avgs_work, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance, switchdev_deferred_process_work, rht_deferred_worker, rht_deferred_worker, rht_deferred_worker, rht_deferred_worker, vmstat_shepherd
workqueue events_highpri: flags=0x10
  pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=2/256 refcnt=3
    in-flight: 150:snd_vmidi_output_work
    pending: snd_vmidi_output_work
workqueue events_long: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: defense_work_handler, defense_work_handler, defense_work_handler
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=8/256 refcnt=9
    pending: defense_work_handler, defense_work_handler, defense_work_handler, br_multicast_gc_work, br_multicast_gc_work, br_multicast_gc_work, br_multicast_gc_work, br_multicast_gc_work
workqueue events_unbound: flags=0x2
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=5/512 refcnt=8
    pending: cfg80211_wiphy_work, cfg80211_wiphy_work, cfg80211_wiphy_work, cfg80211_wiphy_work, flush_memcg_stats_dwork
workqueue events_freezable: flags=0x4
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: update_balloon_stats_func
workqueue events_power_efficient: flags=0x80
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: wg_ratelimiter_gc_entries, gc_worker, neigh_periodic_work
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: do_cache_clean, neigh_periodic_work
workqueue mm_percpu_wq: flags=0x8
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: vmstat_update
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: vmstat_update
workqueue writeback: flags=0x4a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/256 refcnt=5
    pending: wb_update_bandwidth_workfn, wb_workfn
workqueue kblockd: flags=0x18
  pwq 3: cpus=1 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2
    pending: blk_mq_timeout_work
  pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2
    pending: blk_mq_timeout_work
workqueue dm_bufio_cache: flags=0x8
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: work_fn
workqueue mld: flags=0x40008
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=6
    pending: mld_ifc_work
    inactive: mld_ifc_work, mld_ifc_work, mld_dad_work, mld_dad_work
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=19
    pending: mld_ifc_work
    inactive: mld_ifc_work, mld_dad_work, mld_dad_work, mld_ifc_work, mld_dad_work, mld_dad_work, mld_ifc_work, mld_dad_work, mld_dad_work, mld_ifc_work, mld_ifc_work, mld_dad_work, mld_dad_work, mld_dad_work, mld_dad_work, mld_dad_work, mld_dad_work
workqueue ipv6_addrconf: flags=0x40008
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=24
    pending: addrconf_dad_work
    inactive: addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=71
    in-flight: 4259:addrconf_dad_work
    inactive: addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work
, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work
workqueue krxrpcd: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=4
    pending: rxrpc_peer_keepalive_worker
    inactive: rxrpc_peer_keepalive_worker, rxrpc_peer_keepalive_worker
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=4
    pending: rxrpc_peer_keepalive_worker
    inactive: rxrpc_peer_keepalive_worker, rxrpc_peer_keepalive_worker
workqueue bat_events: flags=0xe000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=48
    pending: batadv_nc_worker
    inactive: batadv_nc_worker, batadv_nc_worker, batadv_nc_worker, batadv_nc_worker, batadv_mcast_mla_update, batadv_mcast_mla_update, batadv_iv_send_outstanding_bat_ogm_packet, batadv_mcast_mla_update, batadv_mcast_mla_update, batadv_iv_send_outstanding_bat_ogm_packet, batadv_iv_send_outstanding_bat_ogm_packet, batadv_iv_send_outstanding_bat_ogm_packet, batadv_iv_send_outstanding_bat_ogm_packet, batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, batadv_purge_orig, batadv_purge_orig, batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 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_mcast_mla_update, batadv_iv_send_outstanding_bat_ogm_packet, batadv_iv_send_outstanding_bat_ogm_packet, batadv_iv_send_outstanding_bat_ogm_packet, batadv_iv_send_outstanding_bat_ogm_packet
, batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, batadv_iv_send_outstanding_bat_ogm_packet, batadv_iv_send_outstanding_bat_ogm_packet, batadv_tt_purge, batadv_tt_purge, batadv_tt_purge, batadv_tt_purge, batadv_tt_purge, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work
workqueue hci3: flags=0xa0012
  pwq 5: cpus=0-1 node=0 flags=0x4 nice=-20 active=1/1 refcnt=4
    pending: hci_conn_timeout
workqueue wg-kex-wg0: flags=0x6
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=4
    pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x28
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
workqueue wg-kex-wg1: flags=0x6
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/256 refcnt=5
    pending: wg_packet_handshake_send_worker, wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
workqueue wg-kex-wg0: flags=0x6
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=4
    pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x28
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
workqueue wg-kex-wg1: flags=0x6
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/256 refcnt=5
    pending: wg_packet_handshake_send_worker, wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x6
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/256 refcnt=5
    pending: wg_packet_handshake_send_worker, wg_packet_handshake_send_worker
workqueue wg-crypt-wg2: flags=0x28
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x6
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/256 refcnt=5
    pending: wg_packet_handshake_send_worker, wg_packet_handshake_send_worker
workqueue wg-crypt-wg2: flags=0x28
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
workqueue wg-kex-wg0: flags=0x6
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/256 refcnt=5
    pending: wg_packet_handshake_send_worker, wg_packet_handshake_send_worker
workqueue wg-kex-wg1: flags=0x6
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/256 refcnt=5
    pending: wg_packet_handshake_send_worker, wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x6
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=4
    pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg2: flags=0x28
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
workqueue wg-kex-wg0: flags=0x6
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=4
    pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x28
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
workqueue wg-kex-wg1: flags=0x6
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/256 refcnt=5
    pending: wg_packet_handshake_send_worker, wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
workqueue wg-kex-wg0: flags=0x6
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/256 refcnt=5
    pending: wg_packet_handshake_send_worker, wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x28
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x6
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=4
    pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg2: flags=0x28
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
workqueue wg-kex-wg1: flags=0x6
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/256 refcnt=5
    pending: wg_packet_handshake_send_worker, wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x6
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/256 refcnt=5
    pending: wg_packet_handshake_send_worker, wg_packet_handshake_send_worker
workqueue wg-crypt-wg2: flags=0x28
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_encrypt_worker
pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=50s workers=10 idle: 7 4290 4178 4235 4276 4233 13 4230
pool 1: cpus=0 node=0 flags=0x0 nice=-20 hung=275s workers=2 idle: 8
------------[ cut here ]------------
WARNING: CPU: 0 PID: 14 at kernel/rcu/tree_stall.h:937 rcu_check_gp_start_stall+0x2dc/0x460 kernel/rcu/tree_stall.h:929
Modules linked in:
CPU: 0 PID: 14 Comm: ksoftirqd/0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:rcu_check_gp_start_stall+0x2dc/0x460 kernel/rcu/tree_stall.h:937
Code: ff ff ff 48 c7 c7 20 1c 32 96 be 04 00 00 00 e8 3a f5 58 00 48 89 df b8 01 00 00 00 87 05 cc ba cc 14 85 c0 0f 85 19 ff ff ff <0f> 0b 48 81 ff 80 37 32 8c 74 47 48 c7 c0 c4 2b 8a 8d 48 c1 e8 03
RSP: 0018:ffffc90000d37a58 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffffffff8c323780 RCX: ffffffff81656146
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff8c323780
RBP: ffffc90000d37cb0 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff2c64384 R12: 0000000000002904
R13: ffff8880b903b258 R14: 0000000000000a02 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 000000001fe2a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rcu_core+0x62b/0x1670 kernel/rcu/tree.c:2758
 handle_softirqs+0x339/0x830 kernel/softirq.c:576
 run_ksoftirqd+0xa4/0x100 kernel/softirq.c:943
 smpboot_thread_fn+0x4f6/0x970 kernel/smpboot.c:164
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>