INFO: task kworker/1:2:30 blocked for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2 state:D
stack:23200 pid:30 tgid:30 ppid:2 task_flags:0x4288060 flags:0x00080000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5295 [inline]
__schedule+0x15dd/0x52d0 kernel/sched/core.c:6908
__schedule_loop kernel/sched/core.c:6990 [inline]
schedule+0x164/0x360 kernel/sched/core.c:7005
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7062
__mutex_lock_common kernel/locking/mutex.c:692 [inline]
__mutex_lock+0x7fe/0x1300 kernel/locking/mutex.c:776
class_mutex_constructor include/linux/mutex.h:253 [inline]
__input_unregister_device+0x328/0x640 drivers/input/input.c:2187
input_unregister_device+0x9b/0x100 drivers/input/input.c:2418
usb_cleanup+0x7c/0x1e0 drivers/input/misc/yealink.c:793
usb_disconnect+0x42/0x70 drivers/input/misc/yealink.c:811
usb_unbind_interface+0x26e/0x910 drivers/usb/core/driver.c:458
device_remove drivers/base/dd.c:573 [inline]
__device_release_driver drivers/base/dd.c:1284 [inline]
device_release_driver_internal+0x4d9/0x860 drivers/base/dd.c:1307
bus_remove_device+0x34d/0x440 drivers/base/bus.c:616
device_del+0x527/0x8f0 drivers/base/core.c:3878
usb_disable_device+0x3d4/0x8d0 drivers/usb/core/message.c:1418
usb_disconnect+0x32f/0x990 drivers/usb/core/hub.c:2345
hub_port_connect drivers/usb/core/hub.c:5407 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
port_event drivers/usb/core/hub.c:5871 [inline]
hub_event+0x1cc9/0x4f30 drivers/usb/core/hub.c:5953
process_one_work kernel/workqueue.c:3275 [inline]
process_scheduled_works+0xb02/0x1830 kernel/workqueue.c:3358
worker_thread+0xa50/0xfc0 kernel/workqueue.c:3439
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Showing all locks held in the system:
3 locks held by kworker/1:0/24:
#0:
ffff88813fe0dd48 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3250 [inline]
ffff88813fe0dd48 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_scheduled_works+0x9ea/0x1830 kernel/workqueue.c:3358
#1:
ffffc900001e7c40 (
(reg_check_chans).work
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3251 [inline]
, at: process_scheduled_works+0xa25/0x1830 kernel/workqueue.c:3358
#2:
ffffffff8fbcce88 (rtnl_mutex){+.+.}-{4:4}, at: reg_check_chans_work+0xa5/0xfe0 net/wireless/reg.c:2462
6 locks held by kworker/1:2/30:
#0: ffff8880212ded48 (
(wq_completion)usb_hub_wq
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3250 [inline]
, at: process_scheduled_works+0x9ea/0x1830 kernel/workqueue.c:3358
#1:
ffffc90000a67c40 (
(work_completion)(&hub->events)){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3251 [inline]
, at: process_scheduled_works+0xa25/0x1830 kernel/workqueue.c:3358
#2:
ffff8880295ab198
(
&dev->mutex
){....}-{4:4}
, at: device_lock include/linux/device.h:895 [inline]
, at: hub_event+0x17f/0x4f30 drivers/usb/core/hub.c:5899
#3:
ffff88802c556198
(&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:895 [inline]
(&dev->mutex){....}-{4:4}, at: usb_disconnect+0xf8/0x990 drivers/usb/core/hub.c:2336
#4: ffff88806df73160
(&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:895 [inline]
(&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1106 [inline]
(&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb6/0x860 drivers/base/dd.c:1304
#5: ffffffff8f63d228 (input_mutex){+.+.}-{4:4}, at: class_mutex_constructor include/linux/mutex.h:253 [inline]
#5: ffffffff8f63d228 (input_mutex){+.+.}-{4:4}, at: __input_unregister_device+0x328/0x640 drivers/input/input.c:2187
1 lock held by khungtaskd/32:
#0: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
#0: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
#0: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6775
4 locks held by kworker/u8:3/50:
#0: ffff88801b6d6948
((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3250 [inline]
((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x9ea/0x1830 kernel/workqueue.c:3358
#1: ffffc90000ba7c40 (net_cleanup_work){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3251 [inline]
, at: process_scheduled_works+0xa25/0x1830 kernel/workqueue.c:3358
#2:
ffffffff8fbbe6f0
(
pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xf4/0x800 net/core/net_namespace.c:675
#3: ffffffff8fbcce88 (rtnl_mutex){+.+.}-{4:4}, at: wg_destruct+0x25/0x310 drivers/net/wireguard/device.c:246
2 locks held by kworker/u8:5/166:
#0: ffff88813fe4c148 ((wq_completion)events_unbound){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3250 [inline]
, at: process_scheduled_works+0x9ea/0x1830 kernel/workqueue.c:3358
#1:
ffffc900030f7c40
(
(reaper_work).work
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3251 [inline]
, at: process_scheduled_works+0xa25/0x1830 kernel/workqueue.c:3358
2 locks held by kworker/0:2/1587:
1 lock held by dhcpcd/5484:
#0:
ffffffff8fbcce88
(
rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: devinet_ioctl+0x32b/0x1b30 net/ipv4/devinet.c:1120
2 locks held by getty/5575:
#0:
ffff8880367180a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000331e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}
, at: n_tty_read+0x45c/0x13c0 drivers/tty/n_tty.c:2211
6 locks held by kworker/1:3/5804:
#0:
ffff8880212ded48
((wq_completion)usb_hub_wq
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3250 [inline]
, at: process_scheduled_works+0x9ea/0x1830 kernel/workqueue.c:3358
#1:
ffffc90003637c40
((work_completion)(&hub->events)
){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3251 [inline]
){+.+.}-{0:0}, at: process_scheduled_works+0xa25/0x1830 kernel/workqueue.c:3358
#2: ffff88802961c198
(
&dev->mutex
){....}-{4:4}, at: device_lock include/linux/device.h:895 [inline]
){....}-{4:4}, at: hub_event+0x17f/0x4f30 drivers/usb/core/hub.c:5899
#3: ffff88807ef1d198
(&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:895 [inline]
(&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1008
#4:
ffff88805fd3f160
(
&dev->mutex
){....}-{4:4}
, at: device_lock include/linux/device.h:895 [inline]
, at: __device_attach+0x88/0x450 drivers/base/dd.c:1008
#5:
ffffffff8f63d228
(
input_mutex
){+.+.}-{4:4}
, at: class_mutex_intr_constructor include/linux/mutex.h:255 [inline]
, at: input_register_device+0xa76/0x1160 drivers/input/input.c:2374
6 locks held by kworker/0:0/5889:
4 locks held by udevd/5890:
#0:
ffff88807db93e80
(
&p->lock
){+.+.}-{4:4}
, at: seq_read_iter+0xb7/0xe10 fs/seq_file.c:183
#1:
ffff888030e58888 (
&of->mutex
#2
){+.+.}-{4:4}
, at: kernfs_seq_start+0x5c/0x420 fs/kernfs/file.c:172
#2:
ffff888033deff08
(
kn->active#29){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
kn->active#29){.+.+}-{0:0}, at: kernfs_seq_start+0xb2/0x420 fs/kernfs/file.c:173
#3:
ffff88802c556198 (&dev->mutex){....}-{4:4}, at: device_lock_interruptible include/linux/device.h:900 [inline]
ffff88802c556198 (&dev->mutex){....}-{4:4}, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
6 locks held by kworker/0:5/5988:
4 locks held by udevd/5990:
#0:
ffff88807db931c8
(
&p->lock
){+.+.}-{4:4}
, at: seq_read_iter+0xb7/0xe10 fs/seq_file.c:183
#1:
ffff88807bfdb888
(
&of->mutex
#2
){+.+.}-{4:4}, at: kernfs_seq_start+0x5c/0x420 fs/kernfs/file.c:172
#2:
ffff888033ced698
(
kn->active
#29
){.+.+}-{0:0}
, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
, at: kernfs_seq_start+0xb2/0x420 fs/kernfs/file.c:173
#3:
ffff88807ef1d198
(
&dev->mutex
){....}-{4:4}
, at: device_lock_interruptible include/linux/device.h:900 [inline]
, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
2 locks held by kworker/u8:1/6001:
#0: ffff88813fe4c148
(
(wq_completion)events_unbound
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3250 [inline]
, at: process_scheduled_works+0x9ea/0x1830 kernel/workqueue.c:3358
#1:
ffffc900037efc40
(
connector_reaper_work
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3251 [inline]
, at: process_scheduled_works+0xa25/0x1830 kernel/workqueue.c:3358
3 locks held by kworker/u8:7/6126:
#0: ffff8880316ab148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3250 [inline]
#0: ffff8880316ab148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x9ea/0x1830 kernel/workqueue.c:3358
#1:
ffffc900026e7c40 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)
){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3251 [inline]
){+.+.}-{0:0}, at: process_scheduled_works+0xa25/0x1830 kernel/workqueue.c:3358
#2:
ffffffff8fbcce88
(
rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4738
5 locks held by kworker/0:6/6147:
4 locks held by udevd/6311:
#0:
ffff8880288bac30
(&p->lock){+.+.}-{4:4}, at: seq_read_iter+0xb7/0xe10 fs/seq_file.c:183
#1: ffff88805d4f9088 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_seq_start+0x5c/0x420 fs/kernfs/file.c:172
#2: ffff888057a06c38
(kn->active#29){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
(kn->active#29){.+.+}-{0:0}, at: kernfs_seq_start+0xb2/0x420 fs/kernfs/file.c:173
#3: ffff88803343f198 (&dev->mutex){....}-{4:4}, at: device_lock_interruptible include/linux/device.h:900 [inline]
#3: ffff88803343f198 (&dev->mutex){....}-{4:4}, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
4 locks held by syz-executor/6662:
#0:
ffff888035ba6420
(
sb_writers
#7
){.+.+}-{0:0}
, at: file_start_write include/linux/fs.h:2710 [inline]
, at: vfs_write+0x227/0xb90 fs/read_write.c:684
#1: ffff88807bfa5088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1de/0x540 fs/kernfs/file.c:343
#2: ffff8880289393c8 (
kn->active
#58
){.+.+}-{0:0}
, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
, at: kernfs_fop_write_iter+0x231/0x540 fs/kernfs/file.c:344
#3:
ffffffff8f441768 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd7/0x370 drivers/net/netdevsim/bus.c:234
8 locks held by syz-executor/6663:
#0:
ffff888035ba6420
(
sb_writers
#7
){.+.+}-{0:0}
, at: file_start_write include/linux/fs.h:2710 [inline]
, at: vfs_write+0x227/0xb90 fs/read_write.c:684
#1:
ffff88805dc28488
(
&of->mutex
){+.+.}-{4:4}
, at: kernfs_fop_write_iter+0x1de/0x540 fs/kernfs/file.c:343
#2:
ffff8880289393c8 (kn->active
#58
){.+.+}-{0:0}
, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
, at: kernfs_fop_write_iter+0x231/0x540 fs/kernfs/file.c:344
#3: ffffffff8f441768
(
nsim_bus_dev_list_lock
){+.+.}-{4:4}
, at: del_device_store+0xd7/0x370 drivers/net/netdevsim/bus.c:234
#4: ffff888035e180e8 (
&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:895 [inline]
&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1106 [inline]
&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb6/0x860 drivers/base/dd.c:1304
#5: ffff888079a7f250
(
&devlink->lock_key
#12
){+.+.}-{4:4}
, at: nsim_drv_remove+0x50/0x170 drivers/net/netdevsim/dev.c:1778
#6:
ffffffff8fbcce88
(rtnl_mutex
){+.+.}-{4:4}
, at: nsim_destroy+0xed/0x680 drivers/net/netdevsim/netdev.c:1177
#7: ffffffff8e5ed510 (cpu_hotplug_lock){++++}-{0:0}, at: flush_all_backlogs net/core/dev.c:6538 [inline]
#7: ffffffff8e5ed510 (cpu_hotplug_lock){++++}-{0:0}, at: unregister_netdevice_many_notify+0xc74/0x2370 net/core/dev.c:12393
4 locks held by syz-executor/6664:
#0:
ffff888035ba6420
(sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2710 [inline]
(sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x227/0xb90 fs/read_write.c:684
#1:
ffff88805b4cf888
(
&of->mutex
){+.+.}-{4:4}
, at: kernfs_fop_write_iter+0x1de/0x540 fs/kernfs/file.c:343
#2:
ffff8880289394b8
(
kn->active
#59
){.+.+}-{0:0}
, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
, at: kernfs_fop_write_iter+0x231/0x540 fs/kernfs/file.c:344
#3:
ffffffff8f441768
(
nsim_bus_dev_list_lock
){+.+.}-{4:4}
, at: new_device_store+0x13c/0x710 drivers/net/netdevsim/bus.c:184
4 locks held by syz-executor/6667:
#0:
ffff888035ba6420
(
sb_writers
#7
){.+.+}-{0:0}
, at: file_start_write include/linux/fs.h:2710 [inline]
, at: vfs_write+0x227/0xb90 fs/read_write.c:684
#1:
ffff88807bfa5888
(
&of->mutex
){+.+.}-{4:4}
, at: kernfs_fop_write_iter+0x1de/0x540 fs/kernfs/file.c:343
#2:
ffff8880289393c8
(
kn->active
#58
){.+.+}-{0:0}
, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
, at: kernfs_fop_write_iter+0x231/0x540 fs/kernfs/file.c:344
#3:
ffffffff8f441768
(
nsim_bus_dev_list_lock
){+.+.}-{4:4}
, at: del_device_store+0xd7/0x370 drivers/net/netdevsim/bus.c:234
3 locks held by kworker/u8:11/6731:
#0:
ffff88813fe4c148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3250 [inline]
ffff88813fe4c148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x9ea/0x1830 kernel/workqueue.c:3358
#1:
ffffc90004fcfc40
(
(linkwatch_work).work){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3251 [inline]
, at: process_scheduled_works+0xa25/0x1830 kernel/workqueue.c:3358
#2:
ffffffff8fbcce88
(
rtnl_mutex
){+.+.}-{4:4}
, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:313
1 lock held by syz-executor/6907:
#0:
ffffffff8fbcce88
(rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978
1 lock held by syz-executor/6908:
#0:
ffffffff8fbcce88
(
rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978
1 lock held by syz-executor/6911:
#0: ffffffff8fbcce88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff8fbcce88 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978
1 lock held by syz-executor/6913:
#0: ffffffff8fbcce88
(
rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978
1 lock held by syz-executor/6998:
#0:
ffffffff8fbcce88
(
rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978
1 lock held by syz-executor/6999:
#0:
ffffffff8fbcce88
(rtnl_mutex){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978
1 lock held by syz-executor/7001:
#0:
ffffffff8fbcce88
(
rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978
1 lock held by syz-executor/7005:
#0:
ffffffff8fbcce88
(rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
(rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/27/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:161 [inline]
__sys_info lib/sys_info.c:157 [inline]
sys_info+0x135/0x170 lib/sys_info.c:165
check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]
watchdog+0xfd9/0x1030 kernel/hung_task.c:515
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Sending NMI from CPU 1 to CPUs 0:
yealink 4-1:36.0: unexpected response 0
yealink 7-1:36.0: urb_irq_callback - urb status -71
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5988 Comm: kworker/0:5 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/27/2026
Workqueue: events_power_efficient neigh_periodic_work
RIP: 0010:io_serial_in+0x77/0xc0 drivers/tty/serial/8250/8250_port.c:400
Code: e8 de 4d 85 fc 44 89 f9 d3 e3 49 83 c6 40 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 7f 88 ef fc 41 03 1e 89 da ec <0f> b6 c0 5b 41 5c 41 5e 41 5f e9 05 f1 cf fb cc 44 89 f9 80 e1 07
RSP: 0018:ffffc90000007230 EFLAGS: 00000002
RAX: 1ffffffff34b9700 RBX: 00000000000003fd RCX: 0000000000000000
RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000020
RBP: ffffffff9a5cbb70 R08: ffff888140ed8237 R09: 1ffff110281db046
R10: dffffc0000000000 R11: ffffffff85404f80 R12: dffffc0000000000
R13: 0000000000000000 R14: ffffffff9a5cb8e0 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff888125463000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b20e5ac168 CR3: 000000005a350000 CR4: 0000000000350ef0
Call Trace:
serial_in drivers/tty/serial/8250/8250.h:128 [inline]
serial_lsr_in drivers/tty/serial/8250/8250.h:150 [inline]
wait_for_lsr+0x1a1/0x2f0 drivers/tty/serial/8250/8250_port.c:1961
fifo_wait_for_lsr drivers/tty/serial/8250/8250_port.c:3234 [inline]
serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3257 [inline]
serial8250_console_write+0x1348/0x1ba0 drivers/tty/serial/8250/8250_port.c:3342
console_emit_next_record kernel/printk/printk.c:3183 [inline]
console_flush_one_record kernel/printk/printk.c:3269 [inline]
console_flush_all+0x718/0xb20 kernel/printk/printk.c:3343
__console_flush_and_unlock kernel/printk/printk.c:3373 [inline]
console_unlock+0xd1/0x1c0 kernel/printk/printk.c:3413
vprintk_emit+0x485/0x560 kernel/printk/printk.c:2479
dev_vprintk_emit+0x355/0x420 drivers/base/core.c:4913
dev_printk_emit+0xee/0x140 drivers/base/core.c:4924
_dev_err+0x11e/0x180 drivers/base/core.c:4979
urb_irq_callback+0x38d/0x5f0 drivers/input/misc/yealink.c:418
__usb_hcd_giveback_urb+0x376/0x540 drivers/usb/core/hcd.c:1657
dummy_timer+0xbbd/0x45d0 drivers/usb/gadget/udc/dummy_hcd.c:1995
__run_hrtimer kernel/time/hrtimer.c:1785 [inline]
__hrtimer_run_queues+0x53a/0xcc0 kernel/time/hrtimer.c:1849
hrtimer_run_softirq+0x182/0x5a0 kernel/time/hrtimer.c:1866
handle_softirqs+0x22a/0x870 kernel/softirq.c:622
do_softirq+0x76/0xd0 kernel/softirq.c:523
__local_bh_enable_ip+0xf8/0x130 kernel/softirq.c:450
spin_unlock_bh include/linux/spinlock.h:395 [inline]
neigh_periodic_work+0xc28/0xe50 net/core/neighbour.c:1038
process_one_work kernel/workqueue.c:3275 [inline]
process_scheduled_works+0xb02/0x1830 kernel/workqueue.c:3358
worker_thread+0xa50/0xfc0 kernel/workqueue.c:3439
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
yealink 7-1:36.0: unexpected response 0
yealink 4-1:36.0: urb_ctl_callback - urb status -71
yealink 7-1:36.0: urb_ctl_callback - urb status -71
yealink 4-1:36.0: urb_irq_callback - urb status -71
yealink 4-1:36.0: unexpected response 0