[  548.556308] irq 51: nobody cared (try booting with the "irqpoll" option)
[  548.556395] CPU: 0 UID: 0 PID: 2515 Comm: perl Not tainted 6.19.0-rc6-virtme #1 PREEMPT(voluntary) 
[  548.556397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  548.556399] Call Trace:
[  548.556402]  <IRQ>
[  548.556405]  dump_stack_lvl+0x4d/0x70
[  548.556411]  __report_bad_irq+0x35/0xb8
[  548.556414]  note_interrupt.cold+0x28/0x66
[  548.556415]  handle_irq_event+0x6e/0x80
[  548.556418]  handle_edge_irq+0xbc/0x180
[  548.556420]  __common_interrupt+0x40/0xd0
[  548.556423]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  548.556425]  common_interrupt+0x7a/0x90
[  548.556429]  </IRQ>
[  548.556429]  <TASK>
[  548.556430]  asm_common_interrupt+0x26/0x40
[  548.556431] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  548.556435] 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
[  548.556436] RSP: 0018:ff7c84a640ec7d38 EFLAGS: 00000286
[  548.556438] RAX: 00000000ffffffff RBX: ff22e29081d84000 RCX: 0000000000000017
[  548.556439] RDX: ffffffffa63cf3f5 RSI: 0000000000000282 RDI: ffffffffa76c2680
[  548.556439] RBP: 0000000000000001 R08: 0000000000000001 R09: ff22e29082f64800
[  548.556440] R10: ff7c84a640ec7e68 R11: 0000000000000001 R12: ffffffffa76c2680
[  548.556440] R13: ff7c84a640365000 R14: ff22e29082f64800 R15: 0000000000000282
[  548.556441]  ? rpm_suspend+0x185/0x5e0
[  548.556445]  uart_write+0xb4/0x270
[  548.556448]  n_tty_write+0x155/0x560
[  548.556450]  ? swake_up_all+0xd0/0xd0
[  548.556452]  file_tty_write.isra.0+0x15b/0x2a0
[  548.556453]  vfs_write+0x258/0x4d0
[  548.556457]  ? __hrtimer_run_queues+0x161/0x2a0
[  548.556459]  ksys_write+0x73/0xe0
[  548.556461]  do_syscall_64+0xa4/0xfc0
[  548.556462]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  548.556463] RIP: 0033:0x7f4f260bcc5e
[  548.556466] 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
[  548.556466] RSP: 002b:00007ffc70eb90e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  548.556467] RAX: ffffffffffffffda RBX: 000055f4efd9f140 RCX: 00007f4f260bcc5e
[  548.556468] RDX: 0000000000000001 RSI: 000055f4efd9f140 RDI: 0000000000000001
[  548.556468] RBP: 00007ffc70eb90f0 R08: 0000000000000000 R09: 0000000000000000
[  548.556468] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  548.556469] R13: 000055f4efd60010 R14: 0000000000000001 R15: 000055f4efd9f140
[  548.556470]  </TASK>
[  548.556470] handlers:
[  548.557816] [<000000000024ac44>] serial8250_interrupt
[  548.557849] Disabling IRQ #51