[  411.051191] irq 51: nobody cared (try booting with the "irqpoll" option)
[  411.051272] CPU: 0 UID: 0 PID: 3074 Comm: perl Not tainted 6.19.0-rc6-virtme #1 PREEMPT(voluntary) 
[  411.051275] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  411.051277] Call Trace:
[  411.051281]  <IRQ>
[  411.051284]  dump_stack_lvl+0x4d/0x70
[  411.051291]  __report_bad_irq+0x35/0xb8
[  411.051294]  note_interrupt.cold+0x28/0x66
[  411.051295]  handle_irq_event+0x6e/0x80
[  411.051298]  handle_edge_irq+0xbc/0x180
[  411.051300]  __common_interrupt+0x40/0xd0
[  411.051303]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  411.051305]  common_interrupt+0x7a/0x90
[  411.051309]  </IRQ>
[  411.051309]  <TASK>
[  411.051309]  asm_common_interrupt+0x26/0x40
[  411.051311] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  411.051314] 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
[  411.051315] RSP: 0018:ff7ef449c113bd38 EFLAGS: 00000286
[  411.051317] RAX: 00000000ffffffff RBX: ff37a1ae01f68000 RCX: 0000000000000017
[  411.051318] RDX: ffffffffa1fcf3f5 RSI: 0000000000000282 RDI: ffffffffa32c2680
[  411.051319] RBP: 0000000000000001 R08: 0000000000000001 R09: ff37a1ae01cf7c00
[  411.051319] R10: ff7ef449c113be68 R11: 0000000000000001 R12: ffffffffa32c2680
[  411.051320] R13: ff7ef449c0345000 R14: ff37a1ae01cf7c00 R15: 0000000000000282
[  411.051320]  ? rpm_suspend+0x185/0x5e0
[  411.051324]  uart_write+0xb4/0x270
[  411.051328]  n_tty_write+0x155/0x560
[  411.051331]  ? swake_up_all+0xd0/0xd0
[  411.051333]  file_tty_write.isra.0+0x15b/0x2a0
[  411.051335]  vfs_write+0x258/0x4d0
[  411.051338]  ? __hrtimer_run_queues+0x161/0x2a0
[  411.051341]  ksys_write+0x73/0xe0
[  411.051342]  do_syscall_64+0xa4/0xfc0
[  411.051344]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  411.051345] RIP: 0033:0x7f6dee04cc5e
[  411.051347] 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
[  411.051348] RSP: 002b:00007ffff5500600 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  411.051349] RAX: ffffffffffffffda RBX: 0000564f60d3c300 RCX: 00007f6dee04cc5e
[  411.051349] RDX: 0000000000000001 RSI: 0000564f60d3c300 RDI: 0000000000000001
[  411.051350] RBP: 00007ffff5500610 R08: 0000000000000000 R09: 0000000000000000
[  411.051350] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  411.051350] R13: 0000564f60cfd010 R14: 0000000000000001 R15: 0000564f60d3c300
[  411.051351]  </TASK>
[  411.051352] handlers:
[  411.052411] [<000000006a513e55>] serial8250_interrupt
[  411.052437] Disabling IRQ #51