[  252.616779] irq 51: nobody cared (try booting with the "irqpoll" option)
[  252.616899] CPU: 0 UID: 0 PID: 1566 Comm: perl Not tainted 6.19.0-rc6-virtme #1 PREEMPT(voluntary) 
[  252.616901] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  252.616903] Call Trace:
[  252.616906]  <IRQ>
[  252.616909]  dump_stack_lvl+0x4d/0x70
[  252.616916]  __report_bad_irq+0x35/0xb8
[  252.616918]  note_interrupt.cold+0x28/0x66
[  252.616919]  handle_irq_event+0x6e/0x80
[  252.616923]  handle_edge_irq+0xbc/0x180
[  252.616925]  __common_interrupt+0x40/0xd0
[  252.616927]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  252.616929]  common_interrupt+0x7a/0x90
[  252.616933]  </IRQ>
[  252.616933]  <TASK>
[  252.616934]  asm_common_interrupt+0x26/0x40
[  252.616936] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  252.616939] 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
[  252.616939] RSP: 0018:ff4b09b0c191bd38 EFLAGS: 00000286
[  252.616942] RAX: 00000000ffffffff RBX: ff2a5fb481e54000 RCX: 0000000000000017
[  252.616943] RDX: ffffffffa91cf3f5 RSI: 0000000000000282 RDI: ffffffffaa4c2680
[  252.616943] RBP: 0000000000000001 R08: 0000000000000001 R09: ff2a5fb481e9f800
[  252.616944] R10: ff4b09b0c191be68 R11: 0000000000000001 R12: ffffffffaa4c2680
[  252.616944] R13: ff4b09b0c034d000 R14: ff2a5fb481e9f800 R15: 0000000000000282
[  252.616945]  ? rpm_suspend+0x185/0x5e0
[  252.616949]  uart_write+0xb4/0x270
[  252.616952]  n_tty_write+0x155/0x560
[  252.616954]  ? swake_up_all+0xd0/0xd0
[  252.616956]  file_tty_write.isra.0+0x15b/0x2a0
[  252.616958]  vfs_write+0x258/0x4d0
[  252.616961]  ? __hrtimer_run_queues+0x161/0x2a0
[  252.616963]  ksys_write+0x73/0xe0
[  252.616965]  do_syscall_64+0xa4/0xfc0
[  252.616967]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  252.616968] RIP: 0033:0x7fd6488c9c5e
[  252.616970] Code: 4d 89 d8 e8 34 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
[  252.616971] RSP: 002b:00007fffff2ff740 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  252.616972] RAX: ffffffffffffffda RBX: 000055cb1695f140 RCX: 00007fd6488c9c5e
[  252.616972] RDX: 0000000000000001 RSI: 000055cb1695f140 RDI: 0000000000000001
[  252.616972] RBP: 00007fffff2ff750 R08: 0000000000000000 R09: 0000000000000000
[  252.616973] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  252.616973] R13: 000055cb16920010 R14: 0000000000000001 R15: 000055cb1695f140
[  252.616974]  </TASK>
[  252.616974] handlers:
[  252.618698] [<000000004cc334d5>] serial8250_interrupt
[  252.618734] Disabling IRQ #51