[  750.748840] irq 51: nobody cared (try booting with the "irqpoll" option)
[  750.748938] CPU: 0 UID: 0 PID: 20093 Comm: perl Not tainted 6.19.0-rc3-virtme #1 PREEMPT(voluntary) 
[  750.748940] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  750.748941] Call Trace:
[  750.748944]  <IRQ>
[  750.748947]  dump_stack_lvl+0x4d/0x70
[  750.748953]  __report_bad_irq+0x35/0xb8
[  750.748955]  note_interrupt.cold+0x28/0x66
[  750.748956]  handle_irq_event+0x6e/0x80
[  750.748959]  handle_edge_irq+0xbc/0x180
[  750.748961]  __common_interrupt+0x40/0xd0
[  750.748964]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  750.748966]  common_interrupt+0x7a/0x90
[  750.748970]  </IRQ>
[  750.748970]  <TASK>
[  750.748970]  asm_common_interrupt+0x26/0x40
[  750.748972] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  750.748975] 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
[  750.748976] RSP: 0018:ff85b5648241fd38 EFLAGS: 00000286
[  750.748978] RAX: 00000000ffffffff RBX: ff4dad9f01f28000 RCX: 0000000000000017
[  750.748978] RDX: ffffffffb09ce8f5 RSI: 0000000000000282 RDI: ffffffffb1cc1680
[  750.748979] RBP: 0000000000000001 R08: 0000000000000001 R09: ff4dad9f01c1ec00
[  750.748979] R10: ff85b5648241fe68 R11: 0000000000000001 R12: ffffffffb1cc1680
[  750.748979] R13: ff85b56480355000 R14: ff4dad9f01c1ec00 R15: 0000000000000282
[  750.748980]  ? rpm_suspend+0x185/0x5e0
[  750.748984]  uart_write+0xb4/0x270
[  750.748987]  n_tty_write+0x155/0x560
[  750.748990]  ? swake_up_all+0xd0/0xd0
[  750.748992]  file_tty_write.isra.0+0x15b/0x2a0
[  750.748993]  vfs_write+0x258/0x4d0
[  750.748996]  ? __hrtimer_run_queues+0x161/0x2a0
[  750.748998]  ksys_write+0x73/0xe0
[  750.748999]  do_syscall_64+0xa4/0xfc0
[  750.749001]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  750.749002] RIP: 0033:0x7f7ef1af4c5e
[  750.749003] 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
[  750.749004] RSP: 002b:00007ffd958da2f0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  750.749005] RAX: ffffffffffffffda RBX: 000055c292e5f190 RCX: 00007f7ef1af4c5e
[  750.749005] RDX: 0000000000000001 RSI: 000055c292e5f190 RDI: 0000000000000001
[  750.749006] RBP: 00007ffd958da300 R08: 0000000000000000 R09: 0000000000000000
[  750.749006] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  750.749006] R13: 000055c292e20010 R14: 0000000000000001 R15: 000055c292e5f190
[  750.749007]  </TASK>
[  750.749007] handlers:
[  750.750688] [<00000000637dfeb0>] serial8250_interrupt
[  750.750725] Disabling IRQ #51