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workqueue: cannot queue hci_cmd_timeout on wq hci7
WARNING: kernel/workqueue.c:2270 at __queue_work+0xcbb/0x10f0 kernel/workqueue.c:2269, CPU#1: kworker/1:1/54
Modules linked in:
CPU: 1 UID: 0 PID: 54 Comm: kworker/1:1 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: rcu_gp process_srcu
RIP: 0010:__queue_work+0xcbf/0x10f0 kernel/workqueue.c:2269
Code: 00 00 00 fc ff df 49 8d 94 24 78 01 00 00 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 15 04 00 00 48 8d 3d d5 ad 0c 0f 48 8b 75 18 <67> 48 0f b9 3a e9 77 f7 ff ff e8 62 73 38 00 90 0f 0b 90 e9 ff f5
RSP: 0018:ffffc900006a0bf0 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: 0000000000000100 RCX: 1ffff1100b431951
RDX: ffff888037635178 RSI: ffffffff8a74ecb0 RDI: ffffffff90db48a0
RBP: ffff88805a18ca70 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000000 R12: ffff888037635000
R13: 1ffff920000d418f R14: ffffffff81ceabd0 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880d649d000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f624220 CR3: 000000010de25000 CR4: 0000000000352ef0
Call Trace:
call_timer_fn+0x19a/0x590 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1794 [inline]
__run_timers+0x570/0xac0 kernel/time/timer.c:2373
__run_timer_base kernel/time/timer.c:2385 [inline]
__run_timer_base kernel/time/timer.c:2377 [inline]
run_timer_base+0x114/0x190 kernel/time/timer.c:2394
run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2404
handle_softirqs+0x1ea/0x910 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0xef/0x150 kernel/softirq.c:723
irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
sysvec_apic_timer_interrupt+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1056
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:188 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 90 f3 0f 1e fa 53 48 8b 74 24 08 48 89 fb 48 83 c7 18 e8 aa ef 61 f6 48 89 df e8 92 3d 62 f6 e8 2d 67 8d f6 fb bf 01 00 00 00 f2 84 52 f6 65 8b 05 8b a0 86 08 85 c0 74 06 5b c3 cc cc cc cc
RSP: 0018:ffffc90000a7fb68 EFLAGS: 00000202
RAX: 000000000010db97 RBX: ffff88801c3018b0 RCX: 0000000000000040
RDX: 0000000000000000 RSI: ffffffff8de617e9 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff9b1b3240 R14: ffff88801c301980 R15: ffff88801bed4800
spin_unlock_irq include/linux/spinlock.h:401 [inline]
process_srcu+0x18b/0x1ab0 kernel/rcu/srcutree.c:1998
process_one_work+0x9c2/0x1840 kernel/workqueue.c:3275
process_scheduled_works kernel/workqueue.c:3358 [inline]
worker_thread+0x5da/0xe40 kernel/workqueue.c:3439
kthread+0x370/0x450 kernel/kthread.c:467
ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 fc add %bh,%ah
4: ff lcall (bad)
5: df 49 8d fisttps -0x73(%rcx)
8: 94 xchg %eax,%esp
9: 24 78 and $0x78,%al
b: 01 00 add %eax,(%rax)
d: 00 48 89 add %cl,-0x77(%rax)
10: f9 stc
11: 48 c1 e9 03 shr $0x3,%rcx
15: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1)
19: 0f 85 15 04 00 00 jne 0x434
1f: 48 8d 3d d5 ad 0c 0f lea 0xf0cadd5(%rip),%rdi # 0xf0cadfb
26: 48 8b 75 18 mov 0x18(%rbp),%rsi
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: e9 77 f7 ff ff jmp 0xfffff7ab
34: e8 62 73 38 00 call 0x38739b
39: 90 nop
3a: 0f 0b ud2
3c: 90 nop
3d: e9 .byte 0xe9
3e: ff f5 push %rbp