Bluetooth: hci3 command 0x0406 tx timeout
Bluetooth: hci5 command 0x0406 tx timeout
Bluetooth: hci4 command 0x0406 tx timeout
Bluetooth: hci1 command 0x0406 tx timeout
Bluetooth: hci0 command 0x0406 tx timeout
INFO: task syz-executor.1:32257 blocked for more than 140 seconds.
Not tainted 4.14.276-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.1 D28912 32257 8043 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2811 [inline]
__schedule+0x88b/0x1de0 kernel/sched/core.c:3387
schedule+0x8d/0x1b0 kernel/sched/core.c:3431
schedule_timeout+0x80a/0xe90 kernel/time/timer.c:1724
do_wait_for_common kernel/sched/completion.c:91 [inline]
__wait_for_common kernel/sched/completion.c:112 [inline]
wait_for_common+0x272/0x430 kernel/sched/completion.c:123
kthread_stop+0xce/0x640 kernel/kthread.c:555
kvm_mmu_pre_destroy_vm+0x41/0x50 arch/x86/kvm/mmu.c:5912
kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:781 [inline]
kvm_put_kvm+0x30a/0xab0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:819
kvm_vm_release+0x3f/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:830
__fput+0x25f/0x7a0 fs/file_table.c:210
task_work_run+0x11f/0x190 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:191 [inline]
exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164
prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fcf9ee0ed2b
RSP: 002b:00007ffe15e592a0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 000000000000000b RCX: 00007fcf9ee0ed2b
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000000000a
RBP: 00007fcf9ef70960 R08: 0000000000000000 R09: 00007fcf9ef73760
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000020e37
R13: 00007fcf9ef739a8 R14: 00007fcf9ef6f100 R15: 0000000000000002
Showing all locks held in the system:
1 lock held by khungtaskd/1532:
#0: (tasklist_lock){.+.+}, at: [<ffffffff8702578c>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4548
1 lock held by in:imklog/7716:
#0: (&f->f_pos_lock){+.+.}, at: [<ffffffff818d692b>] __fdget_pos+0x1fb/0x2b0 fs/file.c:819
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 1532 Comm: khungtaskd Not tainted 4.14.276-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x1b2/0x281 lib/dump_stack.c:58
nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x13a/0x180 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline]
watchdog+0x5b9/0xb40 kernel/hung_task.c:274
kthread+0x30d/0x420 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7717 Comm: rs:main Q:Reg Not tainted 4.14.276-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880a5894500 task.stack: ffff888092200000
RIP: 0010:queue_lock kernel/futex.c:2343 [inline]
RIP: 0010:futex_wait_setup+0xf9/0x260 kernel/futex.c:2792
RSP: 0018:ffff8880922079f0 EFLAGS: 00000202
RAX: ffffc90000c74a00 RBX: ffff888092207af0 RCX: 000000002d6afbba
RDX: 00000000000001ff RSI: 0000000000000000 RDI: 0000000000000200
RBP: ffffed1012440f5e R08: 0000000000000000 R09: 0000000000000000
R10: 1ffff11012440ff9 R11: 0000000000000000 R12: 000055d4f822c28c
R13: ffff888092207a48 R14: ffff888092207bb8 R15: ffffc90000c74a00
FS: 00007f4c92199700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdebb56f010 CR3: 00000000ab1c2000 CR4: 00000000003426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
futex_wait+0x199/0x5a0 kernel/futex.c:2850
do_futex+0x1d8/0x1570 kernel/futex.c:3906
SYSC_futex kernel/futex.c:3966 [inline]
SyS_futex+0x1da/0x290 kernel/futex.c:3934
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f4c94bda17f
RSP: 002b:00007f4c92198c70 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4c94bda17f
RDX: 00000000000004af RSI: 0000000000000080 RDI: 000055d4f822c28c
RBP: 000055d4f822c288 R08: 000055d4f822c000 R09: 0000000000000257
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4c92198cd0
R13: 0000000000000000 R14: 000055d4f7fd3290 R15: 0000000000000000
Code: c1 ed 03 48 01 c5 eb 10 e8 45 3b 09 00 f6 44 24 14 01 0f 85 27 01 00 00 e8 35 3b 09 00 4c 89 f7 e8 4d bf ff ff 49 89 c7 f0 ff 00 <4c> 8d 40 08 48 8b 44 24 08 80 38 00 0f 85 14 01 00 00 48 8b 04
----------------
Code disassembly (best guess):
0: c1 ed 03 shr $0x3,%ebp
3: 48 01 c5 add %rax,%rbp
6: eb 10 jmp 0x18
8: e8 45 3b 09 00 callq 0x93b52
d: f6 44 24 14 01 testb $0x1,0x14(%rsp)
12: 0f 85 27 01 00 00 jne 0x13f
18: e8 35 3b 09 00 callq 0x93b52
1d: 4c 89 f7 mov %r14,%rdi
20: e8 4d bf ff ff callq 0xffffbf72
25: 49 89 c7 mov %rax,%r15
28: f0 ff 00 lock incl (%rax)
* 2b: 4c 8d 40 08 lea 0x8(%rax),%r8 <-- trapping instruction
2f: 48 8b 44 24 08 mov 0x8(%rsp),%rax
34: 80 38 00 cmpb $0x0,(%rax)
37: 0f 85 14 01 00 00 jne 0x151
3d: 48 rex.W
3e: 8b .byte 0x8b
3f: 04 .byte 0x4