INFO: task kworker/0:2:803 blocked for more than 143 seconds.
Not tainted 6.11.0-rc1-syzkaller-00012-gd483f034f032 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:2 state:D
stack:18976 pid:803 tgid:803 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xcda/0x2f80 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0x539/0x12a0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d8/0x200 kernel/locking/rwsem.c:1580
kernfs_add_one+0xb1/0x520 fs/kernfs/dir.c:778
kernfs_create_dir_ns+0xf4/0x150 fs/kernfs/dir.c:1071
sysfs_create_dir_ns+0x13b/0x2b0 fs/sysfs/dir.c:59
create_dir lib/kobject.c:73 [inline]
kobject_add_internal+0x2c8/0x990 lib/kobject.c:240
kobject_add_varg lib/kobject.c:374 [inline]
kobject_add+0x16f/0x240 lib/kobject.c:426
device_add+0x289/0x1a70 drivers/base/core.c:3617
usb_new_device+0xd90/0x1a10 drivers/usb/core/hub.c:2651
hub_port_connect drivers/usb/core/hub.c:5521 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
port_event drivers/usb/core/hub.c:5821 [inline]
hub_event+0x2e66/0x4f50 drivers/usb/core/hub.c:5903
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf20 kernel/workqueue.c:3390
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task syz-executor:2649 blocked for more than 144 seconds.
Not tainted 6.11.0-rc1-syzkaller-00012-gd483f034f032 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D
stack:24416 pid:2649 tgid:2649 ppid:1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xcda/0x2f80 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_read_slowpath+0x61e/0xb20 kernel/locking/rwsem.c:1086
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x124/0x330 kernel/locking/rwsem.c:1528
kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
d_revalidate fs/namei.c:868 [inline]
d_revalidate fs/namei.c:865 [inline]
lookup_fast+0x239/0x540 fs/namei.c:1679
walk_component+0x5b/0x5b0 fs/namei.c:2035
link_path_walk.part.0.constprop.0+0x669/0xd40 fs/namei.c:2404
link_path_walk fs/namei.c:2336 [inline]
path_openat+0x238/0x2d20 fs/namei.c:3882
do_filp_open+0x1dc/0x430 fs/namei.c:3913
do_sys_openat2+0x17a/0x1e0 fs/open.c:1416
do_sys_open fs/open.c:1431 [inline]
__do_sys_openat fs/open.c:1447 [inline]
__se_sys_openat fs/open.c:1442 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1442
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f24a5fb72f1
RSP: 002b:00007ffc10e2be70 EFLAGS: 00000287
ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000509 RCX: 00007f24a5fb72f1
RDX: 0000000000090800 RSI: 00007f24a6025e04 RDI: 00000000ffffff9c
RBP: 00007ffc10e2bf0c R08: 000000000002ce9e R09: 00007f24a6c80080
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 00000000000ee8f2 R14: 00000000000ee8f2 R15: 00007ffc10e2bf60
INFO: task udevd:5008 blocked for more than 144 seconds.
Not tainted 6.11.0-rc1-syzkaller-00012-gd483f034f032 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D
stack:24608 pid:5008 tgid:5008 ppid:2547 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xcda/0x2f80 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
device_lock include/linux/device.h:1009 [inline]
uevent_show+0x188/0x3b0 drivers/base/core.c:2743
dev_attr_show+0x53/0xe0 drivers/base/core.c:2437
sysfs_kf_seq_show+0x23e/0x410 fs/sysfs/file.c:59
seq_read_iter+0x4fa/0x12c0 fs/seq_file.c:230
kernfs_fop_read_iter+0x41a/0x590 fs/kernfs/file.c:279
new_sync_read fs/read_write.c:395 [inline]
vfs_read+0x869/0xbd0 fs/read_write.c:476
ksys_read+0x12f/0x260 fs/read_write.c:619
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6658f3cb6a
RSP: 002b:00007ffef156ce28 EFLAGS: 00000246
ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000055719def1c90 RCX: 00007f6658f3cb6a
RDX: 0000000000001000 RSI: 000055719df4c9f0 RDI: 0000000000000008
RBP: 000055719def1c90 R08: 0000000000000008 R09: 0000000000000004
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000003fff R14: 00007ffef156d308 R15: 000000000000000a
INFO: task syz.0.2284:12807 blocked for more than 145 seconds.
Not tainted 6.11.0-rc1-syzkaller-00012-gd483f034f032 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.2284 state:D
stack:27872 pid:12807 tgid:12807 ppid:2649 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xcda/0x2f80 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0x539/0x12a0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d8/0x200 kernel/locking/rwsem.c:1580
kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
sysfs_remove_file include/linux/sysfs.h:773 [inline]
driver_remove_file drivers/base/driver.c:198 [inline]
driver_remove_file+0x4a/0x60 drivers/base/driver.c:194
remove_bind_files drivers/base/bus.c:600 [inline]
bus_remove_driver+0x224/0x2c0 drivers/base/bus.c:738
driver_unregister+0x76/0xb0 drivers/base/driver.c:274
usb_gadget_unregister_driver+0x49/0x70 drivers/usb/gadget/udc/core.c:1733
raw_release+0x1a9/0x2f0 drivers/usb/gadget/legacy/raw_gadget.c:462
__fput+0x408/0xbb0 fs/file_table.c:422
task_work_run+0x14e/0x250 kernel/task_work.c:222
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xaa3/0x2b30 kernel/exit.c:882
do_group_exit+0xd3/0x2a0 kernel/exit.c:1031
get_signal+0x25fd/0x2770 kernel/signal.c:2917
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x147/0x260 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f24a5fb79f9
RSP: 002b:00007ffc10e2bcb8 EFLAGS: 00000246
ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 00000000000ef4e2 RCX: 00007f24a5fb79f9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f24a6145f8c
RBP: 00007f24a6145f8c R08: 00007f24a6145f80 R09: 00007ffc10e2bf9f
R10: 00007ffc10e2bdb0 R11: 0000000000000246 R12: 0000000000000bea
R13: 00007ffc10e2bdb0 R14: 00007ffc10e2bdd0 R15: 00000000000ee8f8
INFO: task syz.2.2287:12817 blocked for more than 146 seconds.
Not tainted 6.11.0-rc1-syzkaller-00012-gd483f034f032 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.2287 state:D
stack:27872 pid:12817 tgid:12817 ppid:2653 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xcda/0x2f80 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0x539/0x12a0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d8/0x200 kernel/locking/rwsem.c:1580
kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
sysfs_remove_file include/linux/sysfs.h:773 [inline]
driver_remove_file drivers/base/driver.c:198 [inline]
driver_remove_file+0x4a/0x60 drivers/base/driver.c:194
remove_bind_files drivers/base/bus.c:600 [inline]
bus_remove_driver+0x224/0x2c0 drivers/base/bus.c:738
driver_unregister+0x76/0xb0 drivers/base/driver.c:274
usb_gadget_unregister_driver+0x49/0x70 drivers/usb/gadget/udc/core.c:1733
raw_release+0x1a9/0x2f0 drivers/usb/gadget/legacy/raw_gadget.c:462
__fput+0x408/0xbb0 fs/file_table.c:422
task_work_run+0x14e/0x250 kernel/task_work.c:222
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x24e/0x260 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9732c579f9
RSP: 002b:00007ffc42a489e8 EFLAGS: 00000246
ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00000000000eef15 RCX: 00007f9732c579f9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007ffc42a48ac0 R08: 0000000000000001 R09: 00007ffc42a48ccf
R10: 00007f9732ae0000 R11: 0000000000000246 R12: 000000000000015e
R13: 00007ffc42a48ae0 R14: 00007ffc42a48b00 R15: ffffffffffffffff
INFO: task syz.3.2289:12827 blocked for more than 146 seconds.
Not tainted 6.11.0-rc1-syzkaller-00012-gd483f034f032 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.2289 state:D
stack:28648 pid:12827 tgid:12826 ppid:2656 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xcda/0x2f80 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0x539/0x12a0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d8/0x200 kernel/locking/rwsem.c:1580
kernfs_add_one+0xb1/0x520 fs/kernfs/dir.c:778
kernfs_create_dir_ns+0xf4/0x150 fs/kernfs/dir.c:1071
sysfs_create_dir_ns+0x13b/0x2b0 fs/sysfs/dir.c:59
create_dir lib/kobject.c:73 [inline]
kobject_add_internal+0x2c8/0x990 lib/kobject.c:240
kobject_add_varg lib/kobject.c:374 [inline]
kobject_init_and_add+0x11c/0x190 lib/kobject.c:457
bus_add_driver+0x186/0x690 drivers/base/bus.c:666
driver_register+0x15c/0x4b0 drivers/base/driver.c:246
usb_gadget_register_driver_owner+0xfd/0x2f0 drivers/usb/gadget/udc/core.c:1701
raw_ioctl_run drivers/usb/gadget/legacy/raw_gadget.c:595 [inline]
raw_ioctl+0x1737/0x2b90 drivers/usb/gadget/legacy/raw_gadget.c:1306
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl fs/ioctl.c:893 [inline]
__x64_sys_ioctl+0x193/0x220 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f568f3675fb
RSP: 002b:00007f568dfe4f20 EFLAGS: 00000246
ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f568f3675fb
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003
RBP: 00007f568dfe5ff0 R08: 0000000000000010 R09: 00332e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f568dfe4fc0 R14: 0000000020000000 R15: 00007f568f620320
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0:
ffffffff88cb68a0
(
rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6620
7 locks held by kworker/1:1/36:
4 locks held by kworker/0:2/803:
#0:
ffff888105297548
((wq_completion)usb_hub_wq
){+.+.}-{0:0}
, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc90001bcfd80
((work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff888107717190
(
&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:1009 [inline]
, at: hub_event+0x1be/0x4f50 drivers/usb/core/hub.c:5849
#3:
ffff888100abc148
(&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_add_one+0xb1/0x520 fs/kernfs/dir.c:778
2 locks held by getty/2605:
#0:
ffff888113c790a0
(
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1:
ffffc900000432f0
(
&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/2649:
#0:
ffff888100abc148
(&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by syz-executor/2653:
#0:
ffff888100abc148
(&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by syz-executor/2656:
#0:
ffff888100abc148
(
&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by syz-executor/2658:
#0: ffff888100abc148
(&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by syz-executor/2660:
#0:
ffff888100abc148
(&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
7 locks held by kworker/1:4/4921:
4 locks held by udevd/5008:
#0:
ffff88811a462c30
(
&p->lock){+.+.}-{3:3}
, at: seq_read_iter+0xde/0x12c0 fs/seq_file.c:182
#1:
ffff88811aa1dc88
(&of->mutex
#2
){+.+.}-{3:3}
, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
#2:
ffff88811df85008
(kn->active
#3
){++++}-{0:0}
, at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155
#3: ffff888113173190
(
&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:1009 [inline]
, at: uevent_show+0x188/0x3b0 drivers/base/core.c:2743
3 locks held by kworker/1:6/6567:
1 lock held by syz.0.2284/12807:
#0: ffff888100abc148
(
&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
1 lock held by syz.4.2285/12828:
#0:
ffff888100abc148
(
&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_add_one+0xb1/0x520 fs/kernfs/dir.c:778
1 lock held by syz.2.2287/12817:
#0:
ffff888100abc148
(&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
1 lock held by syz.1.2288/12821:
#0:
ffff888100abc148
(
&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
1 lock held by syz.3.2289/12827:
#0:
ffff888100abc148
(&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_add_one+0xb1/0x520 fs/kernfs/dir.c:778
1 lock held by syz-executor/12829:
#0: ffff888100abc148
(
&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by syz-executor/12830:
#0:
ffff888100abc148
(&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by syz-executor/12831:
#0:
ffff888100abc148
(&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by syz-executor/12832:
#0: ffff888100abc148
(
&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by syz-executor/12833:
#0:
ffff888100abc148
(&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc1-syzkaller-00012-gd483f034f032 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xf4e/0x1280 kernel/hung_task.c:379
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
yealink 4-1:36.0: unexpected response 0
yealink 4-1:36.0: urb_ctl_callback - urb status -71
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 36 Comm: kworker/1:1 Not tainted 6.11.0-rc1-syzkaller-00012-gd483f034f032 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Workqueue: events_power_efficient gc_worker
RIP: 0010:io_serial_out+0x8f/0xb0 drivers/tty/serial/8250/8250_port.c:413
Code: 48 8d 7d 40 44 89 e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 1c 66 03 5d 40 44 89 e8 89 da ee <5b> 5d 41 5c 41 5d c3 cc cc cc cc e8 c1 c9 0f ff eb a0 e8 4a ca 0f
RSP: 0018:ffffc900001b85c0 EFLAGS: 00000002
RAX: 000000000000005b RBX: 00000000000003f8 RCX: 0000000000000000
RDX: 00000000000003f8 RSI: ffffffff82988b85 RDI: ffffffff8dfc8700
RBP: ffffffff8dfc86c0 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 000000000000005b R14: ffffffff82988b20 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8881f6300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f982a3f3fe8 CR3: 0000000112592000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
serial_out drivers/tty/serial/8250/8250.h:142 [inline]
serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3322 [inline]
serial8250_console_write+0xce7/0x1090 drivers/tty/serial/8250/8250_port.c:3393
console_emit_next_record kernel/printk/printk.c:2983 [inline]
console_flush_all+0x53c/0xd70 kernel/printk/printk.c:3049
console_unlock+0xae/0x290 kernel/printk/printk.c:3118
vprintk_emit kernel/printk/printk.c:2348 [inline]
vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2303
dev_vprintk_emit drivers/base/core.c:4909 [inline]
dev_printk_emit+0xfb/0x140 drivers/base/core.c:4920
__dev_printk+0xf5/0x270 drivers/base/core.c:4932
_dev_err+0xe5/0x120 drivers/base/core.c:4975
urb_ctl_callback+0x1eb/0x2f0 drivers/input/misc/yealink.c:456
__usb_hcd_giveback_urb+0x466/0x6e0 drivers/usb/core/hcd.c:1650
usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734
dummy_timer+0x17c3/0x38d0 drivers/usb/gadget/udc/dummy_hcd.c:1987
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1753
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1815
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x8b/0xb0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__seqprop_spinlock_sequence include/linux/seqlock.h:227 [inline]
RIP: 0010:nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:345 [inline]
RIP: 0010:gc_worker+0x2e1/0x1770 net/netfilter/nf_conntrack_core.c:1488
Code: 00 00 48 c7 c7 e8 9e 32 8a e8 5b 1c 3a fb 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 09 fd 5b fb 48 85 db 58 0f 85 3d 10 00 00 ca 01 5c fb eb 07 e8 c3 01 5c fb f3 90 44 8b 35 0a 3c 3b 04 31
RSP: 0018:ffffc90000267bc8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff85f76e91
RDX: ffff888102ecd700 RSI: ffffffff85f76ea0 RDI: 0000000000000007
RBP: ffff888111000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000005903
R13: dffffc0000000000 R14: 000000000000b205 R15: 0000000000040000
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf20 kernel/workqueue.c:3390
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244