[  556.001137] irq 51: nobody cared (try booting with the "irqpoll" option)
[  556.001256] CPU: 0 UID: 0 PID: 9726 Comm: perl Not tainted 6.19.0-rc4-virtme #1 PREEMPT(voluntary) 
[  556.001259] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  556.001260] Call Trace:
[  556.001264]  <IRQ>
[  556.001268]  dump_stack_lvl+0x4d/0x70
[  556.001274]  __report_bad_irq+0x35/0xb8
[  556.001277]  note_interrupt.cold+0x28/0x66
[  556.001278]  handle_irq_event+0x6e/0x80
[  556.001281]  handle_edge_irq+0xbc/0x180
[  556.001283]  __common_interrupt+0x40/0xd0
[  556.001285]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  556.001287]  common_interrupt+0x7a/0x90
[  556.001291]  </IRQ>
[  556.001291]  <TASK>
[  556.001292]  asm_common_interrupt+0x26/0x40
[  556.001294] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  556.001297] 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 c2 e8 00 <74> 01 c3 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f
[  556.001298] RSP: 0018:ff3e9586438b3d38 EFLAGS: 00000286
[  556.001300] RAX: 00000000ffffffff RBX: ff3aef4781d84000 RCX: 0000000000000017
[  556.001301] RDX: ffffffff831ce9f5 RSI: 0000000000000282 RDI: ffffffff844c1680
[  556.001301] RBP: 0000000000000001 R08: 0000000000000001 R09: ff3aef47831d0c00
[  556.001302] R10: ff3e9586438b3e68 R11: 0000000000000001 R12: ffffffff844c1680
[  556.001302] R13: ff3e95864034d000 R14: ff3aef47831d0c00 R15: 0000000000000282
[  556.001303]  ? rpm_suspend+0x185/0x5e0
[  556.001308]  uart_write+0xb4/0x270
[  556.001311]  n_tty_write+0x155/0x560
[  556.001313]  ? swake_up_all+0xd0/0xd0
[  556.001315]  file_tty_write.isra.0+0x15b/0x2a0
[  556.001316]  vfs_write+0x258/0x4d0
[  556.001320]  ksys_write+0x73/0xe0
[  556.001321]  do_syscall_64+0xa4/0xfc0
[  556.001323]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  556.001324] RIP: 0033:0x7eff5e1a4c5e
[  556.001326] 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
[  556.001327] RSP: 002b:00007ffcb7157110 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  556.001328] RAX: ffffffffffffffda RBX: 000055fcc0a93290 RCX: 00007eff5e1a4c5e
[  556.001328] RDX: 0000000000000001 RSI: 000055fcc0a93290 RDI: 0000000000000001
[  556.001328] RBP: 00007ffcb7157120 R08: 0000000000000000 R09: 0000000000000000
[  556.001329] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  556.001329] R13: 000055fcc0a54010 R14: 0000000000000001 R15: 000055fcc0a93290
[  556.001330]  </TASK>
[  556.001330] handlers:
[  556.002930] [<0000000093692ec9>] serial8250_interrupt
[  556.002958] Disabling IRQ #51