INFO: task jbd2/sda1-8:5151 blocked for more than 148 seconds.
      Not tainted 6.15.0-rc5-syzkaller-00136-g9c69f8884904 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jbd2/sda1-8     state:D
 stack:25368 pid:5151  tgid:5151  ppid:2      task_flags:0x240040 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x168f/0x4c70 kernel/sched/core.c:6767
 __schedule_loop kernel/sched/core.c:6845 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:6860
 io_schedule+0x81/0xe0 kernel/sched/core.c:7742
 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:247
 __wait_on_bit+0xb6/0x310 kernel/sched/wait_bit.c:49
 out_of_line_wait_on_bit+0x123/0x170 kernel/sched/wait_bit.c:64
 wait_on_buffer include/linux/buffer_head.h:422 [inline]
 journal_wait_on_commit_record fs/jbd2/commit.c:171 [inline]
 jbd2_journal_commit_transaction+0x3468/0x5960 fs/jbd2/commit.c:881
 kjournald2+0x3cf/0x750 fs/jbd2/journal.c:201
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Showing all locks held in the system:
4 locks held by kworker/0:1/10:
 #0: 
ffff88801a080d48
 (
(wq_completion)events
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3213 [inline]
, at: process_scheduled_works+0x9b1/0x17a0 kernel/workqueue.c:3319
 #1: 
ffffc900000f7c60
 (
(work_completion)(&aux->work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3214 [inline]
, at: process_scheduled_works+0x9ec/0x17a0 kernel/workqueue.c:3319
 #2: 
ffffffff8dfb7da8
 (
pack_mutex
){+.+.}-{4:4}
, at: bpf_prog_pack_free+0x35/0x480 kernel/bpf/core.c:995
 #3: 
ffffffff8dde7c08
 (
text_mutex
){+.+.}-{4:4}
, at: text_poke_set+0xa3/0x180 arch/x86/kernel/alternative.c:2434
3 locks held by kworker/1:0/24:
1 lock held by khungtaskd/31:
 #0: 
ffffffff8df3b860
 (
rcu_read_lock
){....}-{1:3}
, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6764
5 locks held by kworker/1:1/48:
4 locks held by kworker/u8:3/54:
5 locks held by kworker/u9:0/56:
 #0: 
ffff888023f35948
 (
(wq_completion)hci4
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3213 [inline]
, at: process_scheduled_works+0x9b1/0x17a0 kernel/workqueue.c:3319
 #1: 
ffffc9000101fc60
 (
(work_completion)(&hdev->cmd_sync_work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3214 [inline]
, at: process_scheduled_works+0x9ec/0x17a0 kernel/workqueue.c:3319
 #2: 
ffff888032a40d80
 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1d4/0x3a0 net/bluetooth/hci_sync.c:331
 #3: 
ffff888032a40078
 (
&hdev->lock
){+.+.}-{4:4}
, at: hci_abort_conn_sync+0x1f6/0xdd0 net/bluetooth/hci_sync.c:5597
 #4: 
ffffffff8f447f48
 (
hci_cb_list_lock
){+.+.}-{4:4}
, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2049 [inline]
, at: hci_conn_failed+0x165/0x310 net/bluetooth/hci_conn.c:1269
3 locks held by kworker/0:2/975:
 #0: 
ffff88801a080d48
 (
(wq_completion)events
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3213 [inline]
, at: process_scheduled_works+0x9b1/0x17a0 kernel/workqueue.c:3319
 #1: 
ffffc900037d7c60
 (
(work_completion)(&aux->work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3214 [inline]
, at: process_scheduled_works+0x9ec/0x17a0 kernel/workqueue.c:3319
 #2: 
ffffffff8dfb7da8
 (
pack_mutex
){+.+.}-{4:4}
, at: bpf_prog_pack_free+0x35/0x480 kernel/bpf/core.c:995
5 locks held by kworker/u9:1/5129:
 #0: 
ffff888032a89148
 (
(wq_completion)hci3
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3213 [inline]
, at: process_scheduled_works+0x9b1/0x17a0 kernel/workqueue.c:3319
 #1: 
ffffc9000fc77c60
 (
(work_completion)(&hdev->cmd_sync_work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3214 [inline]
, at: process_scheduled_works+0x9ec/0x17a0 kernel/workqueue.c:3319
 #2: 
ffff8880112d4d80
 (
&hdev->req_lock){+.+.}-{4:4}
, at: hci_cmd_sync_work+0x1d4/0x3a0 net/bluetooth/hci_sync.c:331
 #3: 
ffff8880112d4078
 (
&hdev->lock
){+.+.}-{4:4}
, at: hci_abort_conn_sync+0x1f6/0xdd0 net/bluetooth/hci_sync.c:5597
 #4: 
ffffffff8f447f48
 (
hci_cb_list_lock
){+.+.}-{4:4}
, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2049 [inline]
, at: hci_conn_failed+0x165/0x310 net/bluetooth/hci_conn.c:1269
1 lock held by udevd/5189:
 #0: 
ffff88801aef4948
 (
&root->kernfs_rwsem
){++++}-{4:4}
, at: kernfs_dop_revalidate+0x9e/0x5d0 fs/kernfs/dir.c:1178
2 locks held by getty/5580:
 #0: 
ffff888034ca20a0
 (
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: 
ffffc9000333b2f0
 (
&ldata->atomic_read_lock
){+.+.}-{4:4}
, at: n_tty_read+0x43e/0x1400 drivers/tty/n_tty.c:2222
6 locks held by kworker/1:3/5837:
5 locks held by kworker/1:4/5838:
1 lock held by udevd/6136:
 #0: 
ffff88801aef4948
 (
&root->kernfs_rwsem
){++++}-{4:4}
, at: kernfs_dop_revalidate+0x9e/0x5d0 fs/kernfs/dir.c:1178
5 locks held by kworker/u9:3/6160:
 #0: 
ffff888023f34948
 (
(wq_completion)hci5
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3213 [inline]
, at: process_scheduled_works+0x9b1/0x17a0 kernel/workqueue.c:3319
 #1: 
ffffc90004cdfc60
 (
(work_completion)(&hdev->cmd_sync_work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3214 [inline]
, at: process_scheduled_works+0x9ec/0x17a0 kernel/workqueue.c:3319
 #2: 
ffff88807dabcd80
 (
&hdev->req_lock
){+.+.}-{4:4}
, at: hci_cmd_sync_work+0x1d4/0x3a0 net/bluetooth/hci_sync.c:331
 #3: 
ffff88807dabc078
 (
&hdev->lock
){+.+.}-{4:4}
, at: hci_abort_conn_sync+0x1f6/0xdd0 net/bluetooth/hci_sync.c:5597
 #4: 
ffffffff8f447f48
 (
hci_cb_list_lock
){+.+.}-{4:4}
, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2049 [inline]
, at: hci_conn_failed+0x165/0x310 net/bluetooth/hci_conn.c:1269
4 locks held by udevd/6166:
 #0: 
ffff8880245dd540
 (
&p->lock
){+.+.}-{4:4}
, at: seq_read_iter+0xb7/0xe10 fs/seq_file.c:182
 #1: 
ffff8880294b4c88
 (
&of->mutex
#2
){+.+.}-{4:4}
, at: kernfs_seq_start+0x55/0x3c0 fs/kernfs/file.c:154
 #2: 
ffff88802fa8a5a8
 (
kn->active
#21
){.+.+}-{0:0}
, at: kernfs_seq_start+0x75/0x3c0 fs/kernfs/file.c:155
 #3: 
ffff8880462c3198
 (
&dev->mutex
){....}-{4:4}
, at: device_lock_interruptible include/linux/device.h:927 [inline]
, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
5 locks held by kworker/u9:4/6167:
 #0: 
ffff888072c86948
 (
(wq_completion)hci0
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3213 [inline]
, at: process_scheduled_works+0x9b1/0x17a0 kernel/workqueue.c:3319
 #1: 
ffffc90004d3fc60
 (
(work_completion)(&hdev->cmd_sync_work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3214 [inline]
, at: process_scheduled_works+0x9ec/0x17a0 kernel/workqueue.c:3319
 #2: 
ffff8880326a8d80
 (
&hdev->req_lock
){+.+.}-{4:4}
, at: hci_cmd_sync_work+0x1d4/0x3a0 net/bluetooth/hci_sync.c:331
 #3: 
ffff8880326a8078
 (
&hdev->lock
){+.+.}-{4:4}
, at: hci_abort_conn_sync+0x1f6/0xdd0 net/bluetooth/hci_sync.c:5597
 #4: 
ffffffff8f447f48
 (
hci_cb_list_lock
){+.+.}-{4:4}
, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2049 [inline]
, at: hci_conn_failed+0x165/0x310 net/bluetooth/hci_conn.c:1269
1 lock held by udevd/6169:
1 lock held by udevd/6171:
7 locks held by kworker/u9:7/6172:
 #0: 
ffff888023f36148
 (
(wq_completion)hci1
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3213 [inline]
, at: process_scheduled_works+0x9b1/0x17a0 kernel/workqueue.c:3319
 #1: 
ffffc90004d8fc60
 (
(work_completion)(&hdev->cmd_sync_work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3214 [inline]
, at: process_scheduled_works+0x9ec/0x17a0 kernel/workqueue.c:3319
 #2: 
ffff888032a44d80
 (
&hdev->req_lock
){+.+.}-{4:4}
, at: hci_cmd_sync_work+0x1d4/0x3a0 net/bluetooth/hci_sync.c:331
 #3: 
ffff888032a44078
 (
&hdev->lock
){+.+.}-{4:4}
, at: hci_abort_conn_sync+0x1f6/0xdd0 net/bluetooth/hci_sync.c:5597
 #4: 
ffffffff8f447f48
 (
hci_cb_list_lock
){+.+.}-{4:4}
, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2049 [inline]
, at: hci_conn_failed+0x165/0x310 net/bluetooth/hci_conn.c:1269
 #5: 
ffff888031d23338
 (
&conn->lock
#2
){+.+.}-{4:4}
, at: l2cap_conn_del+0x70/0x680 net/bluetooth/l2cap_core.c:1761
 #6: 
ffffffff8df41338
 (
rcu_state.exp_mutex
){+.+.}-{4:4}
, at: exp_funnel_lock kernel/rcu/tree_exp.h:336 [inline]
, at: synchronize_rcu_expedited+0x3b7/0x730 kernel/rcu/tree_exp.h:998
4 locks held by udevd/6177:
 #0: 
ffff8880259400a0
 (
&p->lock
){+.+.}-{4:4}
, at: seq_read_iter+0xb7/0xe10 fs/seq_file.c:182
 #1: 
ffff888070519888
 (
&of->mutex
#2
){+.+.}-{4:4}
, at: kernfs_seq_start+0x55/0x3c0 fs/kernfs/file.c:154
 #2: 
ffff88807b679e18
 (
kn->active
#21
){.+.+}-{0:0}
, at: kernfs_seq_start+0x75/0x3c0 fs/kernfs/file.c:155
 #3: 
ffff888020b4a198
 (
&dev->mutex
){....}-{4:4}
, at: device_lock_interruptible include/linux/device.h:927 [inline]
, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
6 locks held by kworker/0:4/6250:
 #0: 
ffff88801fed9548
 (
(wq_completion)usb_hub_wq
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3213 [inline]
, at: process_scheduled_works+0x9b1/0x17a0 kernel/workqueue.c:3319
 #1: 
ffffc9000500fc60
 ((work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3214 [inline]
, at: process_scheduled_works+0x9ec/0x17a0 kernel/workqueue.c:3319
 #2: 
ffff8880281d5198
 (
&dev->mutex
){....}-{4:4}
, at: device_lock include/linux/device.h:922 [inline]
, at: hub_event+0x184/0x4a00 drivers/usb/core/hub.c:5859
 #3: 
ffff888028843198
 (
&dev->mutex
){....}-{4:4}
, at: device_lock include/linux/device.h:922 [inline]
, at: usb_disconnect+0xf8/0x910 drivers/usb/core/hub.c:2307
 #4: 
ffff88802f72b160
 (
&dev->mutex
){....}-{4:4}
, at: device_lock include/linux/device.h:922 [inline]
, at: __device_driver_lock drivers/base/dd.c:1094 [inline]
, at: device_release_driver_internal+0xb6/0x7c0 drivers/base/dd.c:1292
 #5: 
ffffffff8ebbdb50
 (
minor_rwsem
#2
){+.+.}-{4:4}
, at: usb_deregister_dev+0x87/0x210 drivers/usb/core/file.c:186
3 locks held by kworker/0:5/6265:
 #0: 
ffff88801a080d48
 (
(wq_completion)events
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3213 [inline]
, at: process_scheduled_works+0x9b1/0x17a0 kernel/workqueue.c:3319
 #1: 
ffffc90004fbfc60
 (
(work_completion)(&aux->work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3214 [inline]
, at: process_scheduled_works+0x9ec/0x17a0 kernel/workqueue.c:3319
 #2: 
ffffffff8dfb7da8
 (
pack_mutex
){+.+.}-{4:4}
, at: bpf_prog_pack_free+0x35/0x480 kernel/bpf/core.c:995
3 locks held by kworker/0:6/6340:
 #0: 
ffff88801a080d48
 (
(wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
(wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x9b1/0x17a0 kernel/workqueue.c:3319
 #1: 
ffffc90005157c60
 (
(work_completion)(&aux->work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3214 [inline]
, at: process_scheduled_works+0x9ec/0x17a0 kernel/workqueue.c:3319
 #2: 
ffffffff8dfb7da8
 (
pack_mutex
){+.+.}-{4:4}
, at: bpf_prog_pack_free+0x35/0x480 kernel/bpf/core.c:995
5 locks held by kworker/1:7/6345:
4 locks held by udevd/6384:
 #0: 
ffff888072eb1540
 (
&p->lock
){+.+.}-{4:4}
, at: seq_read_iter+0xb7/0xe10 fs/seq_file.c:182
 #1: 
ffff88802745b088
 (
&of->mutex
#2
){+.+.}-{4:4}
, at: kernfs_seq_start+0x55/0x3c0 fs/kernfs/file.c:154
 #2: 
ffff8880296280f8
 (
kn->active
#21
){.+.+}-{0:0}
, at: kernfs_seq_start+0x75/0x3c0 fs/kernfs/file.c:155
 #3: 
ffff888028843198
 (
&dev->mutex
){....}-{4:4}
, at: device_lock_interruptible include/linux/device.h:927 [inline]
, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
7 locks held by kworker/1:8/6401:
5 locks held by kworker/u8:10/6418:
4 locks held by udevd/6423:
 #0: 
ffff888030b10540
 (
&p->lock
){+.+.}-{4:4}
, at: seq_read_iter+0xb7/0xe10 fs/seq_file.c:182
 #1: 
ffff888023ddf488
 (
&of->mutex
#2
){+.+.}-{4:4}
, at: kernfs_seq_start+0x55/0x3c0 fs/kernfs/file.c:154
 #2: 
ffff8880296280f8
 (
kn->active
#21
){.+.+}-{0:0}
, at: kernfs_seq_start+0x75/0x3c0 fs/kernfs/file.c:155
 #3: 
ffff888028843198
 (
&dev->mutex
){....}-{4:4}
, at: device_lock_interruptible include/linux/device.h:927 [inline]
, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
2 locks held by kworker/1:11/6427:
4 locks held by udevd/6450:
 #0: 
ffff888030aa8b08
 (
&p->lock
){+.+.}-{4:4}
, at: seq_read_iter+0xb7/0xe10 fs/seq_file.c:182
 #1: 
ffff888030943888
 (
&of->mutex
#2
){+.+.}-{4:4}
, at: kernfs_seq_start+0x55/0x3c0 fs/kernfs/file.c:154
 #2: 
ffff888028464698
 (
kn->active
#21
){.+.+}-{0:0}
, at: kernfs_seq_start+0x75/0x3c0 fs/kernfs/file.c:155
 #3: 
ffff888029295198
 (
&dev->mutex
){....}-{4:4}
, at: device_lock_interruptible include/linux/device.h:927 [inline]
, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
1 lock held by udevd/6451:
 #0: 
ffff88801aef4948
 (
&root->kernfs_rwsem
){++++}-{4:4}
, at: kernfs_dop_revalidate+0x9e/0x5d0 fs/kernfs/dir.c:1178
1 lock held by udevd/6495:
 #0: 
ffff88801aef4948
 (
&root->kernfs_rwsem
){++++}-{4:4}
, at: kernfs_dop_revalidate+0x9e/0x5d0 fs/kernfs/dir.c:1178
1 lock held by udevd/6498:
 #0: 
ffff88801aef4948
 (
&root->kernfs_rwsem
){++++}-{4:4}
, at: kernfs_dop_revalidate+0x9e/0x5d0 fs/kernfs/dir.c:1178
1 lock held by syz-executor.0/7209:
 #0: 
ffff88801aef4948
 (
&root->kernfs_rwsem
){++++}-{4:4}
, at: kernfs_remove_by_name_ns+0x3d/0x130 fs/kernfs/dir.c:1709

=============================================

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc5-syzkaller-00136-g9c69f8884904 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x39e/0x3d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:274 [inline]
 watchdog+0xfee/0x1030 kernel/hung_task.c:437
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6401 Comm: kworker/1:8 Not tainted 6.15.0-rc5-syzkaller-00136-g9c69f8884904 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025
Workqueue: events_power_efficient neigh_periodic_work
RIP: 0010:delay_tsc+0x3c/0xc0 arch/x86/lib/delay.c:73
Code: e8 d9 f4 42 f6 e8 34 39 01 00 89 c5 0f 01 f9 66 90 49 89 d6 49 c1 e6 20 49 09 c6 0f 01 f9 66 90 49 89 d7 49 c1 e7 20 49 09 c7 <4d> 29 f7 49 39 df 73 53 bf 01 00 00 00 e8 52 f6 42 f6 65 8b 05 9b
RSP: 0018:ffffc90000a08050 EFLAGS: 00000006
RAX: 0000000091649400 RBX: 0000000000000899 RCX: 0000000000000001
RDX: 00000000000000b1 RSI: ffffffff8bc0fec0 RDI: ffffffff8bc0fe80
RBP: 0000000000000001 R08: ffff888024480237 R09: 1ffff11004890046
R10: dffffc0000000000 R11: ffffffff8b4dd840 R12: 1ffffffff3362f82
R13: 00000000ffffffff R14: 000000b191649176 R15: 000000b191649400
FS:  0000000000000000(0000) GS:ffff888126200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555563a6e788 CR3: 000000000dd36000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 udelay include/asm-generic/delay.h:62 [inline]
 wait_for_lsr+0x160/0x2f0 drivers/tty/serial/8250/8250_port.c:2104
 fifo_wait_for_lsr drivers/tty/serial/8250/8250_port.c:3348 [inline]
 serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3371 [inline]
 serial8250_console_write+0x134c/0x1ba0 drivers/tty/serial/8250/8250_port.c:3456
 console_emit_next_record kernel/printk/printk.c:3138 [inline]
 console_flush_all+0x725/0xc40 kernel/printk/printk.c:3226
 __console_flush_and_unlock kernel/printk/printk.c:3285 [inline]
 console_unlock+0xc4/0x270 kernel/printk/printk.c:3325
 vprintk_emit+0x5b7/0x7a0 kernel/printk/printk.c:2450
 dev_vprintk_emit+0x337/0x3f0 drivers/base/core.c:4917
 dev_printk_emit+0xe0/0x130 drivers/base/core.c:4928
 _dev_warn+0x10a/0x160 drivers/base/core.c:4984
 usb_rx_callback_intf0+0x149/0x190 drivers/media/rc/imon.c:1768
 __usb_hcd_giveback_urb+0x417/0x690 drivers/usb/core/hcd.c:1650
 dummy_timer+0x862/0x4550 drivers/usb/gadget/udc/dummy_hcd.c:1994
 __run_hrtimer kernel/time/hrtimer.c:1761 [inline]
 __hrtimer_run_queues+0x529/0xc60 kernel/time/hrtimer.c:1825
 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1842
 handle_softirqs+0x283/0x870 kernel/softirq.c:579
 do_softirq+0xec/0x180 kernel/softirq.c:480
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x17d/0x1c0 kernel/softirq.c:407
 neigh_periodic_work+0xb41/0xd60 net/core/neighbour.c:966
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xadb/0x17a0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>