INFO: task udevd:5265 blocked for more than 143 seconds.
Not tainted 6.12.0-rc2-syzkaller-00100-geb952c47d154 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:22192 pid:5265 tgid:5265 ppid:4680 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
bdev_open+0xf0/0xc50 block/bdev.c:904
blkdev_open+0x3d9/0x560 block/fops.c:631
do_dentry_open+0x97a/0x1460 fs/open.c:958
vfs_open+0x3e/0x330 fs/open.c:1088
do_open fs/namei.c:3774 [inline]
path_openat+0x2c84/0x3590 fs/namei.c:3933
do_filp_open+0x235/0x490 fs/namei.c:3960
do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2fa67169a4
RSP: 002b:00007ffee0f1f9f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00005563b569e380 RCX: 00007f2fa67169a4
RDX: 00000000000a0800 RSI: 00005563b56b52d0 RDI: 00000000ffffff9c
RBP: 00005563b56b52d0 R08: 00000000ffffffff R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 00005563b5694540 R14: 0000000000000001 R15: 00005563b567f910
INFO: task kworker/1:6:5340 blocked for more than 144 seconds.
Not tainted 6.12.0-rc2-syzkaller-00100-geb952c47d154 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:6 state:D
stack:21136 pid:5340 tgid:5340 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
kernfs_add_one+0x9a/0x8b0 fs/kernfs/dir.c:778
kernfs_create_dir_ns+0xd9/0x120 fs/kernfs/dir.c:1071
sysfs_create_dir_ns+0x189/0x3a0 fs/sysfs/dir.c:59
create_dir lib/kobject.c:73 [inline]
kobject_add_internal+0x435/0x8d0 lib/kobject.c:240
kobject_add_varg lib/kobject.c:374 [inline]
kobject_add+0x152/0x220 lib/kobject.c:426
device_add+0x4e5/0xbf0 drivers/base/core.c:3613
cdev_device_add+0x1ec/0x3a0 fs/char_dev.c:556
evdev_connect+0x349/0x3f0 drivers/input/evdev.c:1383
input_attach_handler drivers/input/input.c:1027 [inline]
input_register_device+0xd3d/0x1110 drivers/input/input.c:2470
legacy_dvb_usb_remote_init drivers/media/usb/dvb-usb/dvb-usb-remote.c:224 [inline]
dvb_usb_remote_init+0xbc5/0x12f0 drivers/media/usb/dvb-usb/dvb-usb-remote.c:335
dvb_usb_init drivers/media/usb/dvb-usb/dvb-usb-init.c:190 [inline]
dvb_usb_device_init+0x2219/0x2620 drivers/media/usb/dvb-usb/dvb-usb-init.c:310
dibusb_probe+0xb4/0xf0 drivers/media/usb/dvb-usb/dibusb-mb.c:116
usb_probe_interface+0x647/0xbb0 drivers/usb/core/driver.c:399
really_probe+0x2ba/0xad0 drivers/base/dd.c:658
__driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800
driver_probe_device+0x50/0x430 drivers/base/dd.c:830
__device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958
bus_for_each_drv+0x250/0x2e0 drivers/base/bus.c:459
__device_attach+0x333/0x520 drivers/base/dd.c:1030
bus_probe_device+0x189/0x260 drivers/base/bus.c:534
device_add+0x856/0xbf0 drivers/base/core.c:3675
usb_set_configuration+0x1976/0x1fb0 drivers/usb/core/message.c:2210
usb_generic_driver_probe+0x88/0x140 drivers/usb/core/generic.c:254
usb_probe_device+0x1ba/0x380 drivers/usb/core/driver.c:294
really_probe+0x2ba/0xad0 drivers/base/dd.c:658
__driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800
driver_probe_device+0x50/0x430 drivers/base/dd.c:830
__device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958
bus_for_each_drv+0x250/0x2e0 drivers/base/bus.c:459
__device_attach+0x333/0x520 drivers/base/dd.c:1030
bus_probe_device+0x189/0x260 drivers/base/bus.c:534
device_add+0x856/0xbf0 drivers/base/core.c:3675
usb_new_device+0x104a/0x19a0 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+0x2d6d/0x5150 drivers/usb/core/hub.c:5903
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task udevd:5495 blocked for more than 146 seconds.
Not tainted 6.12.0-rc2-syzkaller-00100-geb952c47d154 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D
stack:24592 pid:5495 tgid:5495 ppid:4680 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159
lookup_fast+0x1f6/0x4a0
walk_component fs/namei.c:2049 [inline]
link_path_walk+0x672/0xea0 fs/namei.c:2418
path_openat+0x266/0x3590 fs/namei.c:3929
do_filp_open+0x235/0x490 fs/namei.c:3960
do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2fa67169a4
RSP: 002b:00007ffee0f16fe0 EFLAGS: 00000246
ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f2fa67169a4
RDX: 0000000000080000 RSI: 00007ffee0f17118 RDI: 00000000ffffff9c
RBP: 00007ffee0f17118 R08: 0000000000000008 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000
R13: 00005563a5e9db42 R14: 0000000000000001 R15: 00005563a5eb9160
INFO: task syz.1.932:7380 blocked for more than 147 seconds.
Not tainted 6.12.0-rc2-syzkaller-00100-geb952c47d154 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.932 state:D
stack:25712 pid:7380 tgid:7379 ppid:5267 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
kernfs_remove_by_name_ns+0x7a/0x160 fs/kernfs/dir.c:1689
module_remove_driver+0x5e/0x1d0 drivers/base/module.c:108
bus_remove_driver+0x1fb/0x320 drivers/base/bus.c:745
usb_gadget_unregister_driver+0x4e/0x70 drivers/usb/gadget/udc/core.c:1731
raw_release+0xf6/0x1e0 drivers/usb/gadget/legacy/raw_gadget.c:462
__fput+0x241/0x880 fs/file_table.c:431
task_work_run+0x251/0x310 kernel/task_work.c:228
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x28e0 kernel/exit.c:939
do_group_exit+0x207/0x2c0 kernel/exit.c:1088
get_signal+0x16a3/0x1740 kernel/signal.c:2917
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
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+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9d45f7dbfb
RSP: 002b:00007f9d46ce6f10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007f9d45f7dbfb
RDX: 00007f9d46ce7fe0 RSI: 0000000080085502 RDI: 0000000000000003
RBP: 00007f9d46ce7fe0 R08: 0000000000000000 R09: 00312e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000080085502
R13: 0000000800000000 R14: 0000000020000640 R15: 00007f9d45ffa273
INFO: task syz.2.946:7408 blocked for more than 148 seconds.
Not tainted 6.12.0-rc2-syzkaller-00100-geb952c47d154 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.946 state:D
stack:23328 pid:7408 tgid:7407 ppid:5254 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
kernfs_add_one+0x9a/0x8b0 fs/kernfs/dir.c:778
kernfs_create_dir_ns+0xd9/0x120 fs/kernfs/dir.c:1071
sysfs_create_dir_ns+0x189/0x3a0 fs/sysfs/dir.c:59
create_dir lib/kobject.c:73 [inline]
kobject_add_internal+0x435/0x8d0 lib/kobject.c:240
kobject_add_varg lib/kobject.c:374 [inline]
kobject_add+0x152/0x220 lib/kobject.c:426
device_add+0x4e5/0xbf0 drivers/base/core.c:3613
add_partition+0x508/0x890 block/partitions/core.c:360
blk_add_partition block/partitions/core.c:556 [inline]
blk_add_partitions block/partitions/core.c:625 [inline]
bdev_disk_changed+0xb22/0x13f0 block/partitions/core.c:685
loop_reread_partitions drivers/block/loop.c:534 [inline]
loop_set_status+0x70c/0x8f0 drivers/block/loop.c:1303
lo_ioctl+0xcbc/0x1f50
blkdev_ioctl+0x57f/0x6a0 block/ioctl.c:693
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xfb/0x170 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3ccdd7dbfb
RSP: 002b:00007f3ccec28d60 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f3ccec28df0 RCX: 00007f3ccdd7dbfb
RDX: 00007f3ccec28f00 RSI: 0000000000004c04 RDI: 0000000000000004
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000001043
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3ccec28f00
R13: 0000000000000001 R14: 00007f3ccdf35f80 R15: 00007ffcc1bdf008
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720
6 locks held by kworker/u8:2/33:
#0:
ffff88801bae5948
(
(wq_completion)netns
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3204 [inline]
, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1:
ffffc90000a97d00
(
net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fcc52d0
(pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:580
#3:
ffff88805d3920e8
(
&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:1014 [inline]
, at: devl_dev_lock net/devlink/devl_internal.h:108 [inline]
, at: devlink_pernet_pre_exit+0x13b/0x440 net/devlink/core.c:506
#4:
ffff88805d393250
(
&devlink->lock_key
#3
){+.+.}-{3:3}
, at: devl_lock net/devlink/core.c:276 [inline]
, at: devl_dev_lock net/devlink/devl_internal.h:109 [inline]
, at: devlink_pernet_pre_exit+0x14d/0x440 net/devlink/core.c:506
#5: ffffffff8fcd1dc8 (rtnl_mutex){+.+.}-{3:3}, at: nsim_init_netdevsim drivers/net/netdevsim/netdev.c:678 [inline]
#5: ffffffff8fcd1dc8 (rtnl_mutex){+.+.}-{3:3}, at: nsim_create+0x408/0x890 drivers/net/netdevsim/netdev.c:750
3 locks held by kworker/u8:6/1120:
#0:
ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90004167d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90004167d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fcd1dc8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276
3 locks held by kworker/u8:7/1820:
3 locks held by kworker/u8:9/2957:
#0:
ffff88802e03d148
(
(wq_completion)ipv6_addrconf
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3204 [inline]
, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90009d5fd00
(
(work_completion)(&(&ifa->dad_work)->work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3205 [inline]
, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2:
ffffffff8fcd1dc8
(
rtnl_mutex
){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4196
6 locks held by kworker/1:2/4639:
#0: ffff888021a9c548 ((wq_completion)usb_hub_wq
){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1:
ffffc9000dac7d00
(
(work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3205 [inline]
, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2:
ffff888144302190
(
&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5849
#3:
ffff888021a80190
(
&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
&dev->mutex){....}-{3:3}, at: __device_attach+0x8e/0x520 drivers/base/dd.c:1005
#4: ffff88805ebe7160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#4: ffff88805ebe7160 (&dev->mutex){....}-{3:3}, at: __device_attach+0x8e/0x520 drivers/base/dd.c:1005
#5: ffffffff8f75cfe8 (input_mutex){+.+.}-{3:3}
, at: input_register_device+0xaee/0x1110 drivers/input/input.c:2463
3 locks held by udevd/4680:
#0:
ffff888030c542b8
(
&f->f_pos_lock
){+.+.}-{3:3}
, at: fdget_pos+0x24e/0x320 fs/file.c:1160
#1: ffff88805b25ee90 (&type->i_mutex_dir_key#4){++++}-{3:3}, at: iterate_dir+0x20c/0x800 fs/readdir.c:101
#2:
ffff88801bae6948
(&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_fop_readdir+0x2ac/0x820 fs/kernfs/dir.c:1854
1 lock held by dhcpcd/4894:
#0: ffffffff8fcd1dc8 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x2ce/0x1aa0 net/ipv4/devinet.c:1097
2 locks held by getty/4983:
#0:
ffff888032bb20a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
6 locks held by kworker/1:3/5259:
#0:
ffff888021a9c548
(
(wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
(wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1:
ffffc90004297d00
((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2:
ffff8880285b2190
(&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
(&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5849
#3:
ffff88805fffc190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
ffff88805fffc190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x8e/0x520 drivers/base/dd.c:1005
#4:
ffff88805ecd3160
(
&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
&dev->mutex){....}-{3:3}, at: __device_attach+0x8e/0x520 drivers/base/dd.c:1005
#5:
ffffffff8f75cfe8
(
input_mutex
){+.+.}-{3:3}
, at: input_register_device+0xaee/0x1110 drivers/input/input.c:2463
6 locks held by kworker/1:4/5261:
#0: ffff888021a9c548
((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90004277d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90004277d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffff888143ff3190 (&dev->mutex){....}-{3:3}