[  546.548415] irq 51: nobody cared (try booting with the "irqpoll" option)
[  546.548487] CPU: 0 UID: 0 PID: 2519 Comm: perl Not tainted 6.19.0-rc4-virtme #1 PREEMPT(voluntary) 
[  546.548490] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  546.548491] Call Trace:
[  546.548495]  <IRQ>
[  546.548498]  dump_stack_lvl+0x4d/0x70
[  546.548505]  __report_bad_irq+0x35/0xb8
[  546.548507]  note_interrupt.cold+0x28/0x66
[  546.548508]  handle_irq_event+0x6e/0x80
[  546.548511]  handle_edge_irq+0xbc/0x180
[  546.548513]  __common_interrupt+0x40/0xd0
[  546.548516]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  546.548518]  common_interrupt+0x7a/0x90
[  546.548522]  </IRQ>
[  546.548522]  <TASK>
[  546.548523]  asm_common_interrupt+0x26/0x40
[  546.548525] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  546.548528] 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
[  546.548529] RSP: 0018:ff53d9a5c1043d38 EFLAGS: 00000286
[  546.548531] RAX: 00000000ffffffff RBX: ff12412bc1f64000 RCX: 0000000000000017
[  546.548532] RDX: ffffffff98bce9f5 RSI: 0000000000000282 RDI: ffffffff99ec1680
[  546.548532] RBP: 0000000000000001 R08: 0000000000000001 R09: ff12412bc4016800
[  546.548533] R10: ff53d9a5c1043e68 R11: 0000000000000001 R12: ffffffff99ec1680
[  546.548533] R13: ff53d9a5c034d000 R14: ff12412bc4016800 R15: 0000000000000282
[  546.548534]  ? rpm_suspend+0x185/0x5e0
[  546.548538]  uart_write+0xb4/0x270
[  546.548541]  n_tty_write+0x155/0x560
[  546.548543]  ? swake_up_all+0xd0/0xd0
[  546.548545]  file_tty_write.isra.0+0x15b/0x2a0
[  546.548546]  vfs_write+0x258/0x4d0
[  546.548550]  ksys_write+0x73/0xe0
[  546.548551]  do_syscall_64+0xa4/0xfc0
[  546.548553]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  546.548554] RIP: 0033:0x7f5ee134ec5e
[  546.548556] 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
[  546.548557] RSP: 002b:00007fffffa15910 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  546.548558] RAX: ffffffffffffffda RBX: 000055857387e1a0 RCX: 00007f5ee134ec5e
[  546.548558] RDX: 0000000000000001 RSI: 000055857387e1a0 RDI: 0000000000000001
[  546.548559] RBP: 00007fffffa15920 R08: 0000000000000000 R09: 0000000000000000
[  546.548559] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  546.548559] R13: 000055857383f010 R14: 0000000000000001 R15: 000055857387e1a0
[  546.548560]  </TASK>
[  546.548560] handlers:
[  546.549742] [<00000000a668e27b>] serial8250_interrupt
[  546.549774] Disabling IRQ #51