Bluetooth: hci0: sending frame failed (-49)
Bluetooth: hci0: command 0x1003 tx timeout
Bluetooth: hci0: sending frame failed (-49)
Bluetooth: hci0: command 0x1001 tx timeout
Bluetooth: hci0: sending frame failed (-49)
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:908
in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper/0
1 lock held by swapper/0/0:
#0: 00000000186cb519 ((&sp->resync_t)){+.-.}, at: lockdep_copy_map include/linux/lockdep.h:168 [inline]
#0: 00000000186cb519 ((&sp->resync_t)){+.-.}, at: call_timer_fn+0xda/0x720 kernel/time/timer.c:1316
Preemption disabled at:
[<ffffffff874b23fd>] schedule_preempt_disabled+0x1d/0x20 kernel/sched/core.c:3618
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x197/0x210 lib/dump_stack.c:118
___might_sleep.cold+0x1bd/0x1f6 kernel/sched/core.c:6191
__might_sleep+0x95/0x190 kernel/sched/core.c:6144
__mutex_lock_common kernel/locking/mutex.c:908 [inline]
__mutex_lock+0xc8/0x1300 kernel/locking/mutex.c:1072
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
tpk_write+0x5d/0x340 drivers/char/ttyprintk.c:123
resync_tnc+0x1b6/0x320 drivers/net/hamradio/6pack.c:522
call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers kernel/time/timer.c:1684 [inline]
__run_timers kernel/time/timer.c:1652 [inline]
run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
__do_softirq+0x25c/0x921 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x180/0x1d0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
</IRQ>
RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61
Code: ff ff 48 89 df e8 42 72 56 fa eb 82 e9 07 00 00 00 0f 00 2d 24 b7 5b 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 14 b7 5b 00 fb f4 <c3> 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 ce 57 0d fa e8 b9
RSP: 0018:ffffffff88e07cb0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff11e4b74 RBX: ffffffff88e79ec0 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff88e7a73c
RBP: ffffffff88e07ce0 R08: ffffffff88e79ec0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff88f25b90 R14: 0000000000000000 R15: ffffffff88e79ec0
arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:556
default_idle_call+0x36/0x90 kernel/sched/idle.c:93
cpuidle_idle_call kernel/sched/idle.c:153 [inline]
do_idle+0x30c/0x4d0 kernel/sched/idle.c:263
cpu_startup_entry+0xc8/0xe0 kernel/sched/idle.c:369
rest_init+0x219/0x222 init/main.c:441
start_kernel+0x88c/0x8c5 init/main.c:737
x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:490
x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:471
secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
================================
WARNING: inconsistent lock state
4.19.88-syzkaller #0 Tainted: G W
--------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
swapper/0/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
0000000038bc970f (&tpk_port.port_write_mutex){+.?.}, at: tpk_write+0x5d/0x340 drivers/char/ttyprintk.c:123
{SOFTIRQ-ON-W} state was registered at:
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903
__mutex_lock_common kernel/locking/mutex.c:925 [inline]
__mutex_lock+0xf7/0x1300 kernel/locking/mutex.c:1072
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
tpk_write+0x5d/0x340 drivers/char/ttyprintk.c:123
tnc_init drivers/net/hamradio/6pack.c:536 [inline]
sixpack_open+0x9d3/0xbf5 drivers/net/hamradio/6pack.c:632
tty_ldisc_open.isra.0+0x89/0xd0 drivers/tty/tty_ldisc.c:462
tty_set_ldisc+0x2e3/0x690 drivers/tty/tty_ldisc.c:587
tiocsetd drivers/tty/tty_io.c:2359 [inline]
tty_ioctl+0x65e/0x1510 drivers/tty/tty_io.c:2603
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:501 [inline]
do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688
ksys_ioctl+0xab/0xd0 fs/ioctl.c:705
__do_sys_ioctl fs/ioctl.c:712 [inline]
__se_sys_ioctl fs/ioctl.c:710 [inline]
__x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
irq event stamp: 202032
hardirqs last enabled at (202032): [<ffffffff87449fd6>] dump_stack+0x1f6/0x210 lib/dump_stack.c:123
hardirqs last disabled at (202031): [<ffffffff87449e91>] dump_stack+0xb1/0x210 lib/dump_stack.c:100
softirqs last enabled at (201968): [<ffffffff81401edc>] _local_bh_enable+0x1c/0x30 kernel/softirq.c:162
softirqs last disabled at (201969): [<ffffffff81404a60>] invoke_softirq kernel/softirq.c:372 [inline]
softirqs last disabled at (201969): [<ffffffff81404a60>] irq_exit+0x180/0x1d0 kernel/softirq.c:412
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&tpk_port.port_write_mutex);
<Interrupt>
lock(&tpk_port.port_write_mutex);
*** DEADLOCK ***
1 lock held by swapper/0/0:
#0: 00000000186cb519 ((&sp->resync_t)){+.-.}, at: lockdep_copy_map include/linux/lockdep.h:168 [inline]
#0: 00000000186cb519 ((&sp->resync_t)){+.-.}, at: call_timer_fn+0xda/0x720 kernel/time/timer.c:1316
stack backtrace:
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x197/0x210 lib/dump_stack.c:118
print_usage_bug.cold+0x330/0x42a kernel/locking/lockdep.c:2540
valid_state kernel/locking/lockdep.c:2553 [inline]
mark_lock_irq kernel/locking/lockdep.c:2747 [inline]
mark_lock+0xd1b/0x1370 kernel/locking/lockdep.c:3127
mark_irqflags kernel/locking/lockdep.c:3005 [inline]
__lock_acquire+0xc62/0x49c0 kernel/locking/lockdep.c:3368
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903
__mutex_lock_common kernel/locking/mutex.c:925 [inline]
__mutex_lock+0xf7/0x1300 kernel/locking/mutex.c:1072
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
tpk_write+0x5d/0x340 drivers/char/ttyprintk.c:123
resync_tnc+0x1b6/0x320 drivers/net/hamradio/6pack.c:522
call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers kernel/time/timer.c:1684 [inline]
__run_timers kernel/time/timer.c:1652 [inline]
run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
__do_softirq+0x25c/0x921 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x180/0x1d0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
</IRQ>
RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61
Code: ff ff 48 89 df e8 42 72 56 fa eb 82 e9 07 00 00 00 0f 00 2d 24 b7 5b 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 14 b7 5b 00 fb f4 <c3> 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 ce 57 0d fa e8 b9
RSP: 0018:ffffffff88e07cb0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff11e4b74 RBX: ffffffff88e79ec0 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff88e7a73c
RBP: ffffffff88e07ce0 R08: ffffffff88e79ec0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff88f25b90 R14: 0000000000000000 R15: ffffffff88e79ec0
arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:556
default_idle_call+0x36/0x90 kernel/sched/idle.c:93
cpuidle_idle_call kernel/sched/idle.c:153 [inline]
do_idle+0x30c/0x4d0 kernel/sched/idle.c:263
cpu_startup_entry+0xc8/0xe0 kernel/sched/idle.c:369
rest_init+0x219/0x222 init/main.c:441
start_kernel+0x88c/0x8c5 init/main.c:737
x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:490
x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:471
secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
Bluetooth: hci0: command 0x1009 tx timeout
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:908
in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper/0
INFO: lockdep is turned off.
Preemption disabled at:
[<ffffffff874b23fd>] schedule_preempt_disabled+0x1d/0x20 kernel/sched/core.c:3618
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 4.19.88-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x197/0x210 lib/dump_stack.c:118
___might_sleep.cold+0x1bd/0x1f6 kernel/sched/core.c:6191
__might_sleep+0x95/0x190 kernel/sched/core.c:6144
__mutex_lock_common kernel/locking/mutex.c:908 [inline]
__mutex_lock+0xc8/0x1300 kernel/locking/mutex.c:1072
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
tpk_write+0x5d/0x340 drivers/char/ttyprintk.c:123
resync_tnc+0x1b6/0x320 drivers/net/hamradio/6pack.c:522
call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers kernel/time/timer.c:1684 [inline]
__run_timers kernel/time/timer.c:1652 [inline]
run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
__do_softirq+0x25c/0x921 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x180/0x1d0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
</IRQ>
RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61
Code: ff ff 48 89 df e8 42 72 56 fa eb 82 e9 07 00 00 00 0f 00 2d 24 b7 5b 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 14 b7 5b 00 fb f4 <c3> 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 ce 57 0d fa e8 b9
RSP: 0018:ffffffff88e07cb0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff11e4b74 RBX: ffffffff88e79ec0 RCX: 1ffffffff127701c
RDX: dffffc0000000000 RSI: ffffffff81704ece RDI: ffffffff874c270c
RBP: ffffffff88e07ce0 R08: ffffffff88e79ec0 R09: ffffed1015d04733
R10: ffffed1015d04732 R11: ffff8880ae823993 R12: 0000000000000000
R13: ffffffff88f25b90 R14: 0000000000000000 R15: ffffffff88e79ec0
arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:556
default_idle_call+0x36/0x90 kernel/sched/idle.c:93
cpuidle_idle_call kernel/sched/idle.c:153 [inline]
do_idle+0x30c/0x4d0 kernel/sched/idle.c:263
cpu_startup_entry+0xc8/0xe0 kernel/sched/idle.c:369
rest_init+0x219/0x222 init/main.c:441
start_kernel+0x88c/0x8c5 init/main.c:737
x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:490
x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:471
secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
kobject: 'rfkill4' (0000000074c22fd7): kobject_uevent_env
kobject: 'rfkill4' (0000000074c22fd7): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill4'
kobject: 'rfkill4' (0000000074c22fd7): kobject_cleanup, parent (null)
kobject: 'rfkill4' (0000000074c22fd7): calling ktype release
kobject: 'rfkill4': free name
kobject: 'hci0' (000000003b2f3fba): kobject_uevent_env
kobject: 'hci0' (000000003b2f3fba): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0'
kobject: 'bluetooth' (00000000db877332): kobject_cleanup, parent (null)
kobject: 'bluetooth' (00000000db877332): calling ktype release
kobject: 'bluetooth': free name
kobject: 'hci0' (000000003b2f3fba): kobject_cleanup, parent (null)
kobject: 'hci0' (000000003b2f3fba): calling ktype release
kobject: 'hci0': free name
[U] è`è`è
kobject: 'rx-0' (000000000c364ab5): kobject_cleanup, parent 00000000ed5d8805
kobject: 'rx-0' (000000000c364ab5): auto cleanup 'remove' event
kobject: 'rx-0' (000000000c364ab5): kobject_uevent_env
kobject: 'rx-0' (000000000c364ab5): fill_kobj_path: path = '/devices/virtual/net/sp0/queues/rx-0'
kobject: 'rx-0' (000000000c364ab5): auto cleanup kobject_del
kobject: 'rx-0' (000000000c364ab5): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (0000000026652036): kobject_cleanup, parent 00000000ed5d8805
kobject: 'tx-0' (0000000026652036): auto cleanup 'remove' event
kobject: 'tx-0' (0000000026652036): kobject_uevent_env
kobject: 'tx-0' (0000000026652036): fill_kobj_path: path = '/devices/virtual/net/sp0/queues/tx-0'
kobject: 'tx-0' (0000000026652036): auto cleanup kobject_del
kobject: 'tx-0' (0000000026652036): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000ed5d8805): kobject_cleanup, parent (null)
kobject: 'queues' (00000000ed5d8805): calling ktype release
kobject: 'queues' (00000000ed5d8805): kset_release
kobject: 'queues': free name
kobject: 'sp0' (00000000a9aa070c): kobject_uevent_env
kobject: 'sp0' (00000000a9aa070c): fill_kobj_path: path = '/devices/virtual/net/sp0'
kobject: 'sp0' (00000000a9aa070c): kobject_cleanup, parent (null)
kobject: 'sp0' (00000000a9aa070c): calling ktype release
kobject: 'sp0': free name