=====================================================
WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected
6.15.0-rc5-syzkaller-00032-g0d8d44db295c #0 Not tainted
-----------------------------------------------------
syz.0.16/5484 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
ffff88803efdb0c0 (&new->fa_lock){....}-{3:3}, at: kill_fasync_rcu fs/fcntl.c:1124 [inline]
ffff88803efdb0c0 (&new->fa_lock){....}-{3:3}, at: kill_fasync+0x199/0x4d0 fs/fcntl.c:1148
and this task is already holding:
ffff8880119eb028 (&client->buffer_lock){....}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline]
ffff8880119eb028 (&client->buffer_lock){....}-{3:3}, at: evdev_pass_values+0xb9/0xbd0 drivers/input/evdev.c:261
which would create a new lock dependency:
(&client->buffer_lock){....}-{3:3} -> (&new->fa_lock){....}-{3:3}
but this new dependency connects a SOFTIRQ-irq-safe lock:
(&dev->event_lock#2){..-.}-{3:3}
... which became SOFTIRQ-irq-safe at:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xa7/0xf0 kernel/locking/spinlock.c:162
class_spinlock_irqsave_constructor include/linux/spinlock.h:585 [inline]
input_inject_event+0xab/0x320 drivers/input/input.c:418
led_trigger_event+0x138/0x210 drivers/leds/led-triggers.c:407
kbd_propagate_led_state drivers/tty/vt/keyboard.c:1080 [inline]
kbd_bh+0x1c6/0x2e0 drivers/tty/vt/keyboard.c:1269
tasklet_action_common+0x369/0x580 kernel/softirq.c:829
handle_softirqs+0x283/0x870 kernel/softirq.c:579
run_ksoftirqd+0x9b/0x100 kernel/softirq.c:968
smpboot_thread_fn+0x53f/0xa60 kernel/smpboot.c:164
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
to a SOFTIRQ-irq-unsafe lock:
(tasklist_lock){.+.+}-{3:3}
... which became SOFTIRQ-irq-unsafe at:
...
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x36/0x50 kernel/locking/spinlock.c:228
__do_wait+0xde/0x740 kernel/exit.c:1662
do_wait+0x1f8/0x520 kernel/exit.c:1706
kernel_wait+0xab/0x170 kernel/exit.c:1882
call_usermodehelper_exec_sync kernel/umh.c:136 [inline]
call_usermodehelper_exec_work+0xbe/0x230 kernel/umh.c:163
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
other info that might help us debug this:
Chain exists of:
&dev->event_lock#2 --> &client->buffer_lock --> tasklist_lock
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(tasklist_lock);
local_irq_disable();
lock(&dev->event_lock#2);
lock(&client->buffer_lock);
<Interrupt>
lock(&dev->event_lock#2);
*** DEADLOCK ***
7 locks held by syz.0.16/5484:
#0: ffff8880350ca118 (&evdev->mutex){+.+.}-{4:4}, at: evdev_write+0x1a1/0x480 drivers/input/evdev.c:511
#1: ffff888033b03230 (&dev->event_lock#2){..-.}-{3:3}, at: class_spinlock_irqsave_constructor include/linux/spinlock.h:585 [inline]
#1: ffff888033b03230 (&dev->event_lock#2){..-.}-{3:3}, at: input_inject_event+0xab/0x320 drivers/input/input.c:418
#2: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
#2: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: input_inject_event+0xbc/0x320 drivers/input/input.c:419
#3: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#3: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#3: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
#3: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: input_pass_values+0x8d/0x890 drivers/input/input.c:118
#4: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#4: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#4: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: evdev_events+0x79/0x340 drivers/input/evdev.c:298
#5: ffff8880119eb028 (&client->buffer_lock){....}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline]
#5: ffff8880119eb028 (&client->buffer_lock){....}-{3:3}, at: evdev_pass_values+0xb9/0xbd0 drivers/input/evdev.c:261
#6: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#6: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#6: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: kill_fasync+0x53/0x4d0 fs/fcntl.c:1147
the dependencies between SOFTIRQ-irq-safe lock and the holding lock:
-> (&dev->event_lock#2){..-.}-{3:3} {
IN-SOFTIRQ-W at:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xa7/0xf0 kernel/locking/spinlock.c:162
class_spinlock_irqsave_constructor include/linux/spinlock.h:585 [inline]
input_inject_event+0xab/0x320 drivers/input/input.c:418
led_trigger_event+0x138/0x210 drivers/leds/led-triggers.c:407
kbd_propagate_led_state drivers/tty/vt/keyboard.c:1080 [inline]
kbd_bh+0x1c6/0x2e0 drivers/tty/vt/keyboard.c:1269
tasklet_action_common+0x369/0x580 kernel/softirq.c:829
handle_softirqs+0x283/0x870 kernel/softirq.c:579
run_ksoftirqd+0x9b/0x100 kernel/softirq.c:968
smpboot_thread_fn+0x53f/0xa60 kernel/smpboot.c:164
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
INITIAL USE at:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xa7/0xf0 kernel/locking/spinlock.c:162
class_spinlock_irqsave_constructor include/linux/spinlock.h:585 [inline]
input_inject_event+0xab/0x320 drivers/input/input.c:418
kbd_led_trigger_activate+0xbc/0x100 drivers/tty/vt/keyboard.c:1036
led_trigger_set+0x52a/0x950 drivers/leds/led-triggers.c:212
led_match_default_trigger drivers/leds/led-triggers.c:269 [inline]
led_trigger_set_default+0x215/0x250 drivers/leds/led-triggers.c:287
led_classdev_register_ext+0x73d/0x930 drivers/leds/led-class.c:566
led_classdev_register include/linux/leds.h:274 [inline]
input_leds_connect+0x517/0x790 drivers/input/input-leds.c:145
input_attach_handler drivers/input/input.c:993 [inline]
input_register_device+0xceb/0x10b0 drivers/input/input.c:2412
atkbd_connect+0x70e/0x9c0 drivers/input/keyboard/atkbd.c:1340
serio_connect_driver drivers/input/serio/serio.c:43 [inline]
serio_driver_probe+0x7f/0xa0 drivers/input/serio/serio.c:747
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x26a/0x9a0 drivers/base/dd.c:657
__driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799
driver_probe_device+0x4f/0x430 drivers/base/dd.c:829
__driver_attach+0x452/0x700 drivers/base/dd.c:1215
bus_for_each_dev+0x230/0x2b0 drivers/base/bus.c:370
serio_attach_driver drivers/input/serio/serio.c:776 [inline]
serio_handle_event+0x1a2/0x860 drivers/input/serio/serio.c:213
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
}
... key at: [<ffffffff99b88560>] input_allocate_device.__key.5+0x0/0x20
-> (&client->buffer_lock){....}-{3:3} {
INITIAL USE at:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:351 [inline]
evdev_pass_values+0xb9/0xbd0 drivers/input/evdev.c:261
evdev_events+0x1e6/0x340 drivers/input/evdev.c:306
input_pass_values+0x285/0x890 drivers/input/input.c:127
input_event_dispose+0x330/0x6b0 drivers/input/input.c:341
input_inject_event+0x1fe/0x320 drivers/input/input.c:423
evdev_write+0x2fc/0x480 drivers/input/evdev.c:528
vfs_write+0x27b/0xa90 fs/read_write.c:682
ksys_write+0x145/0x250 fs/read_write.c:736
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
}
... key at: [<ffffffff99b88800>] evdev_open.__key.25+0x0/0x20
... acquired at:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:351 [inline]
evdev_pass_values+0xb9/0xbd0 drivers/input/evdev.c:261
evdev_events+0x1e6/0x340 drivers/input/evdev.c:306
input_pass_values+0x285/0x890 drivers/input/input.c:127
input_event_dispose+0x330/0x6b0 drivers/input/input.c:341
input_inject_event+0x1fe/0x320 drivers/input/input.c:423
evdev_write+0x2fc/0x480 drivers/input/evdev.c:528
vfs_write+0x27b/0xa90 fs/read_write.c:682
ksys_write+0x145/0x250 fs/read_write.c:736
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
the dependencies between the lock to be acquired
and SOFTIRQ-irq-unsafe lock:
-> (tasklist_lock){.+.+}-{3:3} {
HARDIRQ-ON-R at:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x36/0x50 kernel/locking/spinlock.c:228
__do_wait+0xde/0x740 kernel/exit.c:1662
do_wait+0x1f8/0x520 kernel/exit.c:1706
kernel_wait+0xab/0x170 kernel/exit.c:1882
call_usermodehelper_exec_sync kernel/umh.c:136 [inline]
call_usermodehelper_exec_work+0xbe/0x230 kernel/umh.c:163
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
SOFTIRQ-ON-R at:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x36/0x50 kernel/locking/spinlock.c:228
__do_wait+0xde/0x740 kernel/exit.c:1662
do_wait+0x1f8/0x520 kernel/exit.c:1706
kernel_wait+0xab/0x170 kernel/exit.c:1882
call_usermodehelper_exec_sync kernel/umh.c:136 [inline]
call_usermodehelper_exec_work+0xbe/0x230 kernel/umh.c:163
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
INITIAL USE at:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline]
_raw_write_lock_irq+0xa2/0xf0 kernel/locking/spinlock.c:326
copy_process+0x21d5/0x3b80 kernel/fork.c:2560
kernel_clone+0x21e/0x870 kernel/fork.c:2844
user_mode_thread+0xdd/0x140 kernel/fork.c:2922
rest_init+0x23/0x300 init/main.c:708
start_kernel+0x470/0x4f0 init/main.c:1099
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:513
x86_64_start_kernel+0x66/0x70 arch/x86/kernel/head64.c:494
common_startup_64+0x13e/0x147
INITIAL READ USE at:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x36/0x50 kernel/locking/spinlock.c:228
__do_wait+0xde/0x740 kernel/exit.c:1662
do_wait+0x1f8/0x520 kernel/exit.c:1706
kernel_wait+0xab/0x170 kernel/exit.c:1882
call_usermodehelper_exec_sync kernel/umh.c:136 [inline]
call_usermodehelper_exec_work+0xbe/0x230 kernel/umh.c:163
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
}
... key at: [<ffffffff8dc0c058>] tasklist_lock+0x18/0x40
... acquired at:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x36/0x50 kernel/locking/spinlock.c:228
send_sigio+0x101/0x370 fs/fcntl.c:921
kill_fasync_rcu fs/fcntl.c:1133 [inline]
kill_fasync+0x24d/0x4d0 fs/fcntl.c:1148
lease_break_callback+0x26/0x30 fs/locks.c:558
__break_lease+0x6a2/0x1620 fs/locks.c:1592
vfs_truncate+0x428/0x520 fs/open.c:109
do_sys_truncate+0xdb/0x190 fs/open.c:138
__do_sys_truncate fs/open.c:150 [inline]
__se_sys_truncate fs/open.c:148 [inline]
__x64_sys_truncate+0x5b/0x70 fs/open.c:148
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> (&f_owner->lock){....}-{3:3} {
INITIAL USE at:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline]
_raw_write_lock_irq+0xa2/0xf0 kernel/locking/spinlock.c:326
__f_setown+0x67/0x370 fs/fcntl.c:136
generic_add_lease fs/locks.c:1874 [inline]
generic_setlease+0xd5d/0x1240 fs/locks.c:1942
do_fcntl_add_lease fs/locks.c:2047 [inline]
fcntl_setlease+0x3a2/0x4c0 fs/locks.c:2069
do_fcntl+0x6a0/0x1910 fs/fcntl.c:536
__do_sys_fcntl fs/fcntl.c:591 [inline]
__se_sys_fcntl+0xc8/0x150 fs/fcntl.c:576
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
INITIAL READ USE at:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_read_lock_irq include/linux/rwlock_api_smp.h:169 [inline]
_raw_read_lock_irq+0xaa/0xf0 kernel/locking/spinlock.c:244
f_getown+0x54/0x2a0 fs/fcntl.c:204
sock_ioctl+0x536/0x790 net/socket.c:1256
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf9/0x170 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
}
... key at: [<ffffffff99879cc0>] file_f_owner_allocate.__key+0x0/0x20
... acquired at:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0xaf/0x100 kernel/locking/spinlock.c:236
send_sigio+0x38/0x370 fs/fcntl.c:907
kill_fasync_rcu fs/fcntl.c:1133 [inline]
kill_fasync+0x24d/0x4d0 fs/fcntl.c:1148
lease_break_callback+0x26/0x30 fs/locks.c:558
__break_lease+0x6a2/0x1620 fs/locks.c:1592
vfs_truncate+0x428/0x520 fs/open.c:109
do_sys_truncate+0xdb/0x190 fs/open.c:138
__do_sys_truncate fs/open.c:150 [inline]
__se_sys_truncate fs/open.c:148 [inline]
__x64_sys_truncate+0x5b/0x70 fs/open.c:148
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> (&new->fa_lock){....}-{3:3} {
INITIAL READ USE at:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0xaf/0x100 kernel/locking/spinlock.c:236
kill_fasync_rcu fs/fcntl.c:1124 [inline]
kill_fasync+0x199/0x4d0 fs/fcntl.c:1148
lease_break_callback+0x26/0x30 fs/locks.c:558
__break_lease+0x6a2/0x1620 fs/locks.c:1592
vfs_truncate+0x428/0x520 fs/open.c:109
do_sys_truncate+0xdb/0x190 fs/open.c:138
__do_sys_truncate fs/open.c:150 [inline]
__se_sys_truncate fs/open.c:148 [inline]
__x64_sys_truncate+0x5b/0x70 fs/open.c:148
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
}
... key at: [<ffffffff99879ce0>] fasync_insert_entry.__key+0x0/0x20
... acquired at:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0xaf/0x100 kernel/locking/spinlock.c:236
kill_fasync_rcu fs/fcntl.c:1124 [inline]
kill_fasync+0x199/0x4d0 fs/fcntl.c:1148
__pass_event drivers/input/evdev.c:240 [inline]
evdev_pass_values+0x627/0xbd0 drivers/input/evdev.c:278
evdev_events+0x1e6/0x340 drivers/input/evdev.c:306
input_pass_values+0x285/0x890 drivers/input/input.c:127
input_event_dispose+0x330/0x6b0 drivers/input/input.c:341
input_inject_event+0x1fe/0x320 drivers/input/input.c:423
evdev_write+0x2fc/0x480 drivers/input/evdev.c:528
vfs_write+0x27b/0xa90 fs/read_write.c:682
ksys_write+0x145/0x250 fs/read_write.c:736
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
stack backtrace:
CPU: 0 UID: 0 PID: 5484 Comm: syz.0.16 Not tainted 6.15.0-rc5-syzkaller-00032-g0d8d44db295c #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
print_bad_irq_dependency kernel/locking/lockdep.c:2652 [inline]
check_irq_usage kernel/locking/lockdep.c:2893 [inline]
check_prev_add kernel/locking/lockdep.c:3170 [inline]
check_prevs_add kernel/locking/lockdep.c:3285 [inline]
validate_chain+0x1f05/0x2140 kernel/locking/lockdep.c:3909
__lock_acquire+0xaac/0xd20 kernel/locking/lockdep.c:5235
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0xaf/0x100 kernel/locking/spinlock.c:236
kill_fasync_rcu fs/fcntl.c:1124 [inline]
kill_fasync+0x199/0x4d0 fs/fcntl.c:1148
__pass_event drivers/input/evdev.c:240 [inline]
evdev_pass_values+0x627/0xbd0 drivers/input/evdev.c:278
evdev_events+0x1e6/0x340 drivers/input/evdev.c:306
input_pass_values+0x285/0x890 drivers/input/input.c:127
input_event_dispose+0x330/0x6b0 drivers/input/input.c:341
input_inject_event+0x1fe/0x320 drivers/input/input.c:423
evdev_write+0x2fc/0x480 drivers/input/evdev.c:528
vfs_write+0x27b/0xa90 fs/read_write.c:682
ksys_write+0x145/0x250 fs/read_write.c:736
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f70a058e969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f70a131c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f70a07b6080 RCX: 00007f70a058e969
RDX: 0000000000001068 RSI: 0000200000000040 RDI: 0000000000000009
RBP: 00007f70a0610ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f70a07b6080 R15: 00007ffcf79148d8
</TASK>