[  743.395241] irq 51: nobody cared (try booting with the "irqpoll" option)
[  743.395335] CPU: 0 UID: 0 PID: 18641 Comm: perl Not tainted 6.19.0-rc2-virtme #1 PREEMPT(voluntary) 
[  743.395339] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  743.395340] Call Trace:
[  743.395344]  <IRQ>
[  743.395347]  dump_stack_lvl+0x4d/0x70
[  743.395354]  __report_bad_irq+0x35/0xb8
[  743.395357]  note_interrupt.cold+0x28/0x66
[  743.395358]  handle_irq_event+0x6e/0x80
[  743.395361]  handle_edge_irq+0xbc/0x180
[  743.395363]  __common_interrupt+0x40/0xd0
[  743.395366]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  743.395368]  common_interrupt+0x7a/0x90
[  743.395371]  </IRQ>
[  743.395372]  <TASK>
[  743.395372]  asm_common_interrupt+0x26/0x40
[  743.395374] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  743.395378] 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
[  743.395379] RSP: 0018:ff476638c02d3d38 EFLAGS: 00000286
[  743.395381] RAX: 00000000ffffffff RBX: ff46839641f64000 RCX: 0000000000000017
[  743.395381] RDX: ffffffffa4fce935 RSI: 0000000000000282 RDI: ffffffffa62c0680
[  743.395382] RBP: 0000000000000001 R08: 0000000000000001 R09: ff468396423bf400
[  743.395382] R10: ff476638c02d3e68 R11: 0000000000000001 R12: ffffffffa62c0680
[  743.395383] R13: ff476638c0355000 R14: ff468396423bf400 R15: 0000000000000282
[  743.395383]  ? rpm_suspend+0x185/0x5e0
[  743.395388]  uart_write+0xb4/0x270
[  743.395391]  n_tty_write+0x155/0x560
[  743.395393]  ? swake_up_all+0xd0/0xd0
[  743.395396]  file_tty_write.isra.0+0x15b/0x2a0
[  743.395397]  vfs_write+0x258/0x4d0
[  743.395400]  ? __hrtimer_run_queues+0x161/0x2a0
[  743.395403]  ksys_write+0x73/0xe0
[  743.395404]  do_syscall_64+0xa4/0xfc0
[  743.395406]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  743.395407] RIP: 0033:0x7f7c02522c5e
[  743.395409] 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
[  743.395409] RSP: 002b:00007ffe1116dbb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  743.395411] RAX: ffffffffffffffda RBX: 0000564068502290 RCX: 00007f7c02522c5e
[  743.395411] RDX: 0000000000000001 RSI: 0000564068502290 RDI: 0000000000000001
[  743.395411] RBP: 00007ffe1116dbc0 R08: 0000000000000000 R09: 0000000000000000
[  743.395412] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  743.395412] R13: 00005640684c3010 R14: 0000000000000001 R15: 0000564068502290
[  743.395413]  </TASK>
[  743.395413] handlers:
[  743.397023] [<00000000de2cdc0a>] serial8250_interrupt
[  743.397060] Disabling IRQ #51