[  386.229465] irq 51: nobody cared (try booting with the "irqpoll" option)
[  386.229558] CPU: 0 UID: 0 PID: 3073 Comm: perl Not tainted 6.19.0-rc5-virtme #1 PREEMPT(voluntary) 
[  386.229561] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  386.229563] Call Trace:
[  386.229566]  <IRQ>
[  386.229571]  dump_stack_lvl+0x4d/0x70
[  386.229578]  __report_bad_irq+0x35/0xb8
[  386.229581]  note_interrupt.cold+0x28/0x66
[  386.229583]  handle_irq_event+0x6e/0x80
[  386.229586]  handle_edge_irq+0xbc/0x180
[  386.229589]  __common_interrupt+0x40/0xd0
[  386.229592]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  386.229594]  common_interrupt+0x7a/0x90
[  386.229599]  </IRQ>
[  386.229599]  <TASK>
[  386.229600]  asm_common_interrupt+0x26/0x40
[  386.229602] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  386.229607] Code: 00 66 90 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 f7 c6 00 02 00 00 74 01 fb 65 ff 0d e4 b2 e8 00 <74> 01 c3 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f
[  386.229608] RSP: 0018:ff75fb61012ebd38 EFLAGS: 00000286
[  386.229610] RAX: 00000000ffffffff RBX: ff44eeaf01e54000 RCX: 0000000000000017
[  386.229612] RDX: ffffffff841cedb5 RSI: 0000000000000282 RDI: ffffffff854c2680
[  386.229612] RBP: 0000000000000001 R08: 0000000000000001 R09: ff44eeaf01e9ec00
[  386.229613] R10: ff75fb61012ebe68 R11: 0000000000000001 R12: ffffffff854c2680
[  386.229613] R13: ff75fb6100365000 R14: ff44eeaf01e9ec00 R15: 0000000000000282
[  386.229615]  ? rpm_suspend+0x185/0x5e0
[  386.229619]  uart_write+0xb4/0x270
[  386.229623]  n_tty_write+0x155/0x560
[  386.229625]  ? swake_up_all+0xd0/0xd0
[  386.229628]  file_tty_write.isra.0+0x15b/0x2a0
[  386.229630]  vfs_write+0x258/0x4d0
[  386.229633]  ? __hrtimer_run_queues+0x161/0x2a0
[  386.229637]  ksys_write+0x73/0xe0
[  386.229638]  do_syscall_64+0xa4/0xfc0
[  386.229640]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  386.229642] RIP: 0033:0x7f2e81ed3c5e
[  386.229644] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
[  386.229645] RSP: 002b:00007ffc210c8b10 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  386.229647] RAX: ffffffffffffffda RBX: 000055e99d743150 RCX: 00007f2e81ed3c5e
[  386.229647] RDX: 0000000000000001 RSI: 000055e99d743150 RDI: 0000000000000001
[  386.229648] RBP: 00007ffc210c8b20 R08: 0000000000000000 R09: 0000000000000000
[  386.229648] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  386.229649] R13: 000055e99d704010 R14: 0000000000000001 R15: 000055e99d743150
[  386.229650]  </TASK>
[  386.229651] handlers:
[  386.230972] [<00000000818f707b>] serial8250_interrupt
[  386.231008] Disabling IRQ #51