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workqueue: cannot queue hci_cmd_timeout on wq hci4
WARNING: kernel/workqueue.c:2437 at __queue_work+0xdfc/0x1360 kernel/workqueue.c:2436, CPU#0: swapper/0/0
Modules linked in:
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:__queue_work+0xe1a/0x1360 kernel/workqueue.c:2436
Code: 28 78 01 00 00 4c 8d 35 64 51 11 10 48 89 f8 48 c1 e8 03 80 3c 18 00 74 05 e8 b2 f3 b0 00 49 8b 77 18 4c 89 f7 48 8b 54 24 28 <67> 48 0f b9 3a 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8
RSP: 0018:ffffc90000007be8 EFLAGS: 00010046
RAX: 1ffff1101009294e RBX: dffffc0000000000 RCX: ffffffff8fc8efc0
RDX: ffff88804ebb8978 RSI: ffffffff8af08c20 RDI: ffffffff91a04590
RBP: 0000000000010000 R08: 0000000000000100 R09: 1ffffffff233adf7
R10: dffffc0000000000 R11: ffffffff818efd60 R12: ffff88804ebb89c0
R13: 0000000000000008 R14: ffffffff91a04590 R15: ffff888080494a58
FS: 0000000000000000(0000) GS:ffff888123620000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe8a77ecc40 CR3: 0000000053e88000 CR4: 00000000003526f0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
call_timer_fn+0x18d/0x5f0 kernel/time/timer.c:1749
expire_timers kernel/time/timer.c:1795 [inline]
__run_timers kernel/time/timer.c:2375 [inline]
__run_timer_base+0x67e/0x8b0 kernel/time/timer.c:2387
run_timer_base kernel/time/timer.c:2396 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2406
handle_softirqs+0x265/0x8d0 kernel/softirq.c:669
__do_softirq kernel/softirq.c:703 [inline]
invoke_softirq kernel/softirq.c:542 [inline]
__irq_exit_rcu+0xc6/0x220 kernel/softirq.c:786
irq_exit_rcu+0x9/0x30 kernel/softirq.c:809
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:64
Code: 1b 95 02 c3 cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 43 3a 27 00 fb f4 3c 17 03 00 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90
RSP: 0018:ffffffff8fc07ca0 EFLAGS: 00000242
RAX: 00000000039aeb97 RBX: ffffffff819ca4d0 RCX: 8000000000000001
RDX: 0000000000000001 RSI: ffffffff8e6a2302 RDI: ffffffff8c8e8c80
RBP: ffffffff8fc07d78 R08: ffff8880b8233d9b R09: 1ffff110170467b3
R10: dffffc0000000000 R11: ffffed10170467b4 R12: 0000000000000000
R13: 1ffffffff1f91df8 R14: 1ffffffff1f80f9c R15: dffffc0000000000
arch_safe_halt arch/x86/kernel/process.c:767 [inline]
default_idle+0x9/0x20 arch/x86/kernel/process.c:768
default_idle_call+0x72/0xb0 kernel/sched/idle.c:122
cpuidle_idle_call kernel/sched/idle.c:199 [inline]
do_idle+0x2e0/0x540 kernel/sched/idle.c:355
cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:454
rest_init+0x378/0x3a0 init/main.c:789
start_kernel+0x392/0x3e0 init/main.c:1247
x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310
x86_64_start_kernel+0x137/0x1b0 arch/x86/kernel/head64.c:291
common_startup_64+0x13e/0x157
----------------
Code disassembly (best guess):
0: 28 78 01 sub %bh,0x1(%rax)
3: 00 00 add %al,(%rax)
5: 4c 8d 35 64 51 11 10 lea 0x10115164(%rip),%r14 # 0x10115170
c: 48 89 f8 mov %rdi,%rax
f: 48 c1 e8 03 shr $0x3,%rax
13: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1)
17: 74 05 je 0x1e
19: e8 b2 f3 b0 00 call 0xb0f3d0
1e: 49 8b 77 18 mov 0x18(%r15),%rsi
22: 4c 89 f7 mov %r14,%rdi
25: 48 8b 54 24 28 mov 0x28(%rsp),%rdx
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: 4c 89 f8 mov %r15,%rax
32: 48 c1 e8 03 shr $0x3,%rax
36: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1)
3a: 74 08 je 0x44
3c: 4c 89 ff mov %r15,%rdi
3f: e8 .byte 0xe8