rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P199/1:b..l P8146/1:b..l P9/1:b..l P29/2:b..l P5861/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=30625, q=50 ncpus=2)
task:udevd state:R running task stack:23992 pid:5861 tgid:5861 ppid:4961 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x16dc/0x5500 kernel/sched/core.c:7234
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7556
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x8f0 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_acquire+0x221/0x350 kernel/locking/lockdep.c:5872
Code: ff ff ff e8 61 6c a1 09 f7 44 24 08 00 02 00 00 0f 84 3a ff ff ff 65 48 8b 05 2b a7 fc 10 48 3b 44 24 58 75 33 fb 48 83 c4 60 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 d0 35 a5 09 cc 48 8d 3d b8 1b 12
RSP: 0018:ffffc90005cefd60 EFLAGS: 00000286
RAX: 7db65da12603e100 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 000000005f479b93 RSI: ffffffff8daf21b7 RDI: ffffffff8bca6480
RBP: ffffffff8243355e R08: ffffffff8243355e R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: 0000000000000002
R13: ffffffff8e1c3000 R14: 0000000000000000 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
rcu_read_lock include/linux/rcupdate.h:840 [inline]
fast_dput+0x3b/0x670 fs/dcache.c:938
dput+0x30/0x60 fs/dcache.c:1040
path_put+0x39/0x60 fs/namei.c:722
do_readlinkat+0x223/0x510 fs/stat.c:588
__do_sys_readlink fs/stat.c:605 [inline]
__se_sys_readlink fs/stat.c:602 [inline]
__x64_sys_readlink+0x7f/0x90 fs/stat.c:602
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f869cb0a3a7
RSP: 002b:00007ffc39eceeb8 EFLAGS: 00000202 ORIG_RAX: 0000000000000059
RAX: ffffffffffffffda RBX: 00007ffc39ecf700 RCX: 00007f869cb0a3a7
RDX: 0000000000000400 RSI: 00007ffc39ecf2c0 RDI: 00007ffc39eceec0
RBP: 0000000000000200 R08: 000055826f0e4c29 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc39eceec0
R13: 00007ffc39ecf2c0 R14: 000055826f0e7ca4 R15: 000055826f0e7bcc
task:ktimers/1 state:R running task stack:22640 pid:29 tgid:29 ppid:2 task_flags:0x4208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x16dc/0x5500 kernel/sched/core.c:7234
preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:7413
preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:188 [inline]
_raw_spin_unlock_irq+0x45/0x50 kernel/locking/spinlock.c:206
expire_timers kernel/time/timer.c:1798 [inline]
__run_timers kernel/time/timer.c:2374 [inline]
__run_timer_base+0x66b/0x9b0 kernel/time/timer.c:2386
run_timer_base kernel/time/timer.c:2395 [inline]
run_timer_softirq+0x67/0x170 kernel/time/timer.c:2403
handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
run_ktimerd+0x69/0x100 kernel/softirq.c:1151
smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
task:kworker/0:0 state:R running task stack:20288 pid:9 tgid:9 ppid:2 task_flags:0x4208060 flags:0x00080000
Workqueue: events_power_efficient wg_ratelimiter_gc_entries
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x16dc/0x5500 kernel/sched/core.c:7234
preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:7413
preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
_raw_spin_unlock_irqrestore+0x74/0x80 kernel/locking/spinlock.c:198
unlock_rt_mutex_safe kernel/locking/rtmutex.c:350 [inline]
rt_mutex_slowunlock+0x4ee/0xa20 kernel/locking/rtmutex.c:1467
rt_spin_unlock+0x10d/0x200 kernel/locking/spinlock_rt.c:84
spin_unlock include/linux/spinlock_rt.h:109 [inline]
wg_ratelimiter_gc_entries+0x3a6/0x470 drivers/net/wireguard/ratelimiter.c:76
process_one_work kernel/workqueue.c:3322 [inline]
process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
task:syz.3.725 state:R running task stack:28696 pid:8146 tgid:8144 ppid:5602 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x16dc/0x5500 kernel/sched/core.c:7234
preempt_schedule_notrace+0x57/0x90 kernel/sched/core.c:7506
preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13
rcu_is_watching+0x7f/0xb0 kernel/rcu/tree.c:753
rcu_read_lock include/linux/rcupdate.h:841 [inline]
__rt_spin_lock kernel/locking/spinlock_rt.c:50 [inline]
rt_spin_lock+0x20e/0x400 kernel/locking/spinlock_rt.c:57
spin_lock include/linux/spinlock_rt.h:45 [inline]
d_instantiate+0x63/0xb0 fs/dcache.c:2172
alloc_path_pseudo+0x19c/0x220 fs/file_table.c:411
alloc_file_pseudo+0xa8/0x1e0 fs/file_table.c:423
__anon_inode_getfile fs/anon_inodes.c:164 [inline]
__anon_inode_getfd fs/anon_inodes.c:281 [inline]
anon_inode_getfd+0xc8/0x200 fs/anon_inodes.c:305
map_create+0x7f1/0x1e50 kernel/bpf/syscall.c:1669
__sys_bpf+0xaea/0xd90 kernel/bpf/syscall.c:6395
__do_sys_bpf kernel/bpf/syscall.c:6537 [inline]
__se_sys_bpf kernel/bpf/syscall.c:6534 [inline]
__x64_sys_bpf+0xba/0xd0 kernel/bpf/syscall.c:6534
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f652c3bde99
RSP: 002b:00007f652a616028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f652c645fa0 RCX: 00007f652c3bde99
RDX: 0000000000000048 RSI: 0000200000000640 RDI: 0000000000000000
RBP: 00007f652c453eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f652c646038 R14: 00007f652c645fa0 R15: 00007ffcc9764a18
task:kworker/0:2 state:R running task stack:20832 pid:199 tgid:199 ppid:2 task_flags:0x4208060 flags:0x00080000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x16dc/0x5500 kernel/sched/core.c:7234
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7556
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x8f0 kernel/entry/common.c:167
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:679
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:114 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:128 [inline]
RIP: 0010:lock_release+0x94/0x3c0 kernel/locking/lockdep.c:5885
Code: 85 0d 02 00 00 65 4c 8b 3d e1 77 fc 10 41 83 bf 04 0c 00 00 00 0f 85 f7 01 00 00 49 81 3e e0 24 61 93 0f 84 ea 01 00 00 9c 5b 48 c7 c7 6d c7 89 8d e8 ef 5a a1 09 65 ff 05 90 bd fc 10 c7 44
RSP: 0018:ffffc900039f6f50 EFLAGS: 00000287
RAX: 0000000000000000 RBX: 0000000000000287 RCX: 0000000080000001
RDX: dffffc0000000000 RSI: ffffffff8bca6460 RDI: ffffffff8bca6420
RBP: ffffffff8f620120 R08: ffffffff8b4489a0 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: 0000000000000000
R13: ffffffff819dfde0 R14: ffffffff8f6200f8 R15: ffff888020f65d00
rt_spin_unlock+0x29/0x200 kernel/locking/spinlock_rt.c:80
spin_unlock_irqrestore include/linux/spinlock_rt.h:129 [inline]
__wake_up_common_lock+0x190/0x1f0 kernel/sched/wait.c:127
netlink_unlock_table net/netlink/af_netlink.c:462 [inline]
netlink_broadcast_filtered+0xde5/0xea0 net/netlink/af_netlink.c:1543
netlink_broadcast+0x37/0x50 net/netlink/af_netlink.c:1563
uevent_net_broadcast_untagged lib/kobject_uevent.c:331 [inline]
kobject_uevent_net_broadcast+0x37b/0x560 lib/kobject_uevent.c:410
kobject_uevent_env+0x569/0x9e0 lib/kobject_uevent.c:611
device_add+0x544/0xb80 drivers/base/core.c:3738
usb_set_configuration+0x1ad8/0x2180 drivers/usb/core/message.c:2268
usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
usb_probe_device+0x1c3/0x3b0 drivers/usb/core/driver.c:291
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x254/0xae0 drivers/base/dd.c:706
__driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
__device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
bus_for_each_drv+0x25b/0x2f0 drivers/base/bus.c:500
__device_attach+0x2c7/0x450 drivers/base/dd.c:1098
device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
bus_probe_device+0x12d/0x220 drivers/base/bus.c:620
device_add+0x7d7/0xb80 drivers/base/core.c:3772
usb_new_device+0x98d/0x1610 drivers/usb/core/hub.c:2695
hub_port_connect drivers/usb/core/hub.c:5567 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
port_event drivers/usb/core/hub.c:5871 [inline]
hub_event+0x28cf/0x4cf0 drivers/usb/core/hub.c:5953
process_one_work kernel/workqueue.c:3322 [inline]
process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: rcu_preempt kthread starved for 10502 jiffies! g30625 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:26912 pid:18 tgid:18 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x16dc/0x5500 kernel/sched/core.c:7234
__schedule_loop kernel/sched/core.c:7311 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7326
schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x30c/0x11f0 kernel/rcu/tree.c:2123
rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2325
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:64
Code: 6b 71 02 c3 cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 93 44 27 00 fb f4 8c cd 03 00 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90
RSP: 0018:ffffffff8de07de0 EFLAGS: 00000246
RAX: 000000000067a0af RBX: ffffffff8199847c RCX: 0000000080000001
RDX: 0000000000000001 RSI: ffffffff8d8828c8 RDI: ffffffff8bca6480
RBP: ffffffff8de07eb8 R08: ffff8880b8633d5b R09: 1ffff110170c67ab
R10: dffffc0000000000 R11: ffffed10170c67ac R12: 0000000000000000
R13: 1ffffffff1bdede8 R14: 1ffffffff1bc0fc4 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff888125c49000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32bfdff8 CR3: 000000005df06000 CR4: 00000000003526f0
Call Trace:
arch_safe_halt arch/x86/kernel/process.c:767 [inline]
default_idle+0x9/0x20 arch/x86/kernel/process.c:768
default_idle_call+0x72/0xb0 kernel/sched/idle.c:122
cpuidle_idle_call kernel/sched/idle.c:199 [inline]
do_idle+0x1cc/0x540 kernel/sched/idle.c:355
cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:454
rest_init+0x2de/0x300 init/main.c:717
start_kernel+0x392/0x3e0 init/main.c:1175
x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310
x86_64_start_kernel+0x137/0x1b0 arch/x86/kernel/head64.c:291
common_startup_64+0x13e/0x157
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 252s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x100
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=11 refcnt=12
in-flight: 5584:__usb_queue_reset_device for 254s
pending: vmstat_shepherd, 2*nsim_dev_hwstats_traffic_work, 4*psi_avgs_work, 3*ovs_dp_masks_rebalance
workqueue events_long: flags=0x100
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=6 refcnt=7
pending: 5*defense_work_handler, br_fdb_cleanup
workqueue events_unbound: flags=0x2
pwq 8: cpus=0-1 flags=0x4 nice=0 active=5 refcnt=6
pending: crng_reseed, 4*cfg80211_wiphy_work
pwq 8: cpus=0-1 flags=0x4 nice=0 active=4 refcnt=5
in-flight: 5840:fsnotify_mark_destroy_workfn for 0s ,43:nsim_dev_trap_report_work for 0s ,67:fsnotify_connector_destroy_workfn for 253s ,13:nsim_dev_trap_report_work for 0s
workqueue events_freezable: flags=0x104
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: update_balloon_stats_func
workqueue events_power_efficient: flags=0x180
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=4 refcnt=5
in-flight: 9:wg_ratelimiter_gc_entries for 252s
pending: gc_worker, neigh_managed_work, neigh_periodic_work
workqueue rcu_gp: flags=0x108
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: srcu_invoke_callbacks
workqueue kvfree_rcu_reclaim: flags=0xa
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: kfree_rcu_monitor
workqueue mm_percpu_wq: flags=0x108
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: vmstat_update
workqueue kblockd: flags=0x118
pwq 3: cpus=0 node=0 flags=0x0 nice=-20 active=1 refcnt=2
pending: blk_mq_timeout_work
workqueue usb_hub_wq: flags=0x104
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=4 refcnt=5
in-flight: 5734:hub_event for 259s hub_event ,199:hub_event for 256s hub_event
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=4 refcnt=5
in-flight: 5823:hub_event for 254s hub_event ,36:hub_event for 255s hub_event
workqueue bat_events: flags=0x6000a
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=6
pending: batadv_bla_periodic_work
inactive: batadv_dat_purge, batadv_bla_periodic_work
workqueue wg-kex-wg0: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-kex-wg0: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-kex-wg1: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-kex-wg1: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-kex-wg2: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-kex-wg2: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-kex-wg0: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-kex-wg1: flags=0x6
pwq 8: cpus=0-1 flags=0x4 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_tx_worker
workqueue wg-kex-wg0: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-kex-wg2: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-kex-wg0: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
in-flight: 12:wg_packet_handshake_send_worker for 0s
workqueue wg-kex-wg1: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-kex-wg1: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3
pending: 2*wg_packet_handshake_send_worker
workqueue wg-kex-wg2: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-kex-wg2: flags=0x124
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
in-flight: 5723:wg_packet_handshake_receive_worker for 0s
workqueue wg-kex-wg2: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=252s workers=9 idle: 10 5792 5604 5814 5716
pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=0s workers=9 idle: 31 5822 822 5730 5828 5827
pool 8: cpus=0-1 flags=0x4 nice=0 hung=0s workers=18 idle: 55 1156 5800 69 5839 152 5801 180 1000 1013 1022 1039 1695
Showing backtraces of busy workers in stalled worker pools:
pool 2:
task:kworker/0:0 state:R running task stack:20288 pid:9 tgid:9 ppid:2 task_flags:0x4208060 flags:0x00080000
Workqueue: events_power_efficient wg_ratelimiter_gc_entries
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x16dc/0x5500 kernel/sched/core.c:7234
preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:7413
preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
_raw_spin_unlock_irqrestore+0x74/0x80 kernel/locking/spinlock.c:198
unlock_rt_mutex_safe kernel/locking/rtmutex.c:350 [inline]
rt_mutex_slowunlock+0x4ee/0xa20 kernel/locking/rtmutex.c:1467
rt_spin_unlock+0x10d/0x200 kernel/locking/spinlock_rt.c:84
spin_unlock include/linux/spinlock_rt.h:109 [inline]
wg_ratelimiter_gc_entries+0x3a6/0x470 drivers/net/wireguard/ratelimiter.c:76
process_one_work kernel/workqueue.c:3322 [inline]
process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
pool 2:
task:kworker/0:6 state:D stack:20472 pid:5734 tgid:5734 ppid:2 task_flags:0x4208060 flags:0x00080000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x16dc/0x5500 kernel/sched/core.c:7234
__schedule_loop kernel/sched/core.c:7311 [inline]
rt_mutex_schedule+0x76/0xf0 kernel/sched/core.c:7607
rt_mutex_slowlock_block+0x55c/0x680 kernel/locking/rtmutex.c:1670
__rt_mutex_slowlock kernel/locking/rtmutex.c:1747 [inline]
__rt_mutex_slowlock_locked kernel/locking/rtmutex.c:1787 [inline]
rt_mutex_slowlock+0x2d4/0x780 kernel/locking/rtmutex.c:1827
__rt_mutex_lock kernel/locking/rtmutex.c:1842 [inline]
__mutex_lock_common kernel/locking/rtmutex_api.c:560 [inline]
mutex_lock_nested+0x168/0x1d0 kernel/locking/rtmutex_api.c:578
port_event drivers/usb/core/hub.c:-1 [inline]
hub_event+0x3719/0x4cf0 drivers/usb/core/hub.c:5953
process_one_work kernel/workqueue.c:3322 [inline]
process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
pool 2:
task:kworker/0:2 state:R running task stack:20832 pid:199 tgid:199 ppid:2 task_flags:0x4208060 flags:0x00080000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x16dc/0x5500 kernel/sched/core.c:7234
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7556
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x8f0 kernel/entry/common.c:167
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:679
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:114 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:128 [inline]
RIP: 0010:lock_release+0x94/0x3c0 kernel/locking/lockdep.c:5885
Code: 85 0d 02 00 00 65 4c 8b 3d e1 77 fc 10 41 83 bf 04 0c 00 00 00 0f 85 f7 01 00 00 49 81 3e e0 24 61 93 0f 84 ea 01 00 00 9c 5b 48 c7 c7 6d c7 89 8d e8 ef 5a a1 09 65 ff 05 90 bd fc 10 c7 44
RSP: 0018:ffffc900039f6f50 EFLAGS: 00000287
RAX: 0000000000000000 RBX: 0000000000000287 RCX: 0000000080000001
RDX: dffffc0000000000 RSI: ffffffff8bca6460 RDI: ffffffff8bca6420
RBP: ffffffff8f620120 R08: ffffffff8b4489a0 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: 0000000000000000
R13: ffffffff819dfde0 R14: ffffffff8f6200f8 R15: ffff888020f65d00
rt_spin_unlock+0x29/0x200 kernel/locking/spinlock_rt.c:80
spin_unlock_irqrestore include/linux/spinlock_rt.h:129 [inline]
__wake_up_common_lock+0x190/0x1f0 kernel/sched/wait.c:127
netlink_unlock_table net/netlink/af_netlink.c:462 [inline]
netlink_broadcast_filtered+0xde5/0xea0 net/netlink/af_netlink.c:1543
netlink_broadcast+0x37/0x50 net/netlink/af_netlink.c:1563
uevent_net_broadcast_untagged lib/kobject_uevent.c:331 [inline]
kobject_uevent_net_broadcast+0x37b/0x560 lib/kobject_uevent.c:410
kobject_uevent_env+0x569/0x9e0 lib/kobject_uevent.c:611
device_add+0x544/0xb80 drivers/base/core.c:3738
usb_set_configuration+0x1ad8/0x2180 drivers/usb/core/message.c:2268
usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
usb_probe_device+0x1c3/0x3b0 drivers/usb/core/driver.c:291
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x254/0xae0 drivers/base/dd.c:706
__driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
__device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
bus_for_each_drv+0x25b/0x2f0 drivers/base/bus.c:500
__device_attach+0x2c7/0x450 drivers/base/dd.c:1098
device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
bus_probe_device+0x12d/0x220 drivers/base/bus.c:620
device_add+0x7d7/0xb80 drivers/base/core.c:3772
usb_new_device+0x98d/0x1610 drivers/usb/core/hub.c:2695
hub_port_connect drivers/usb/core/hub.c:5567 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
port_event drivers/usb/core/hub.c:5871 [inline]
hub_event+0x28cf/0x4cf0 drivers/usb/core/hub.c:5953
process_one_work kernel/workqueue.c:3322 [inline]
process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
pool 2:
task:kworker/0:3 state:R running task stack:21592 pid:5584 tgid:5584 ppid:2 task_flags:0x4288060 flags:0x00080000
Workqueue: events __usb_queue_reset_device
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x16dc/0x5500 kernel/sched/core.c:7234
__schedule_loop kernel/sched/core.c:7311 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7326
schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
schedule_timeout_uninterruptible kernel/time/sleep_timeout.c:158 [inline]
msleep+0xa1/0x100 kernel/time/sleep_timeout.c:318
hub_port_wait_reset drivers/usb/core/hub.c:2965 [inline]
hub_port_reset+0x605/0x1800 drivers/usb/core/hub.c:3093
hub_port_init+0x2a1/0x28b0 drivers/usb/core/hub.c:4939
usb_reset_and_verify_device+0x4aa/0x1ac0 drivers/usb/core/hub.c:6215
usb_reset_device+0x55a/0xb20 drivers/usb/core/hub.c:6410
__usb_queue_reset_device+0x73/0xa0 drivers/usb/core/message.c:1964
process_one_work kernel/workqueue.c:3322 [inline]
process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245