[  521.270643] irq 51: nobody cared (try booting with the "irqpoll" option)
[  521.270716] CPU: 0 UID: 0 PID: 21752 Comm: perl Not tainted 6.19.0-rc3-virtme #1 PREEMPT(voluntary) 
[  521.270718] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  521.270719] Call Trace:
[  521.270722]  <IRQ>
[  521.270724]  dump_stack_lvl+0x4d/0x70
[  521.270730]  __report_bad_irq+0x35/0xb8
[  521.270732]  note_interrupt.cold+0x28/0x66
[  521.270733]  handle_irq_event+0x6e/0x80
[  521.270736]  handle_edge_irq+0xbc/0x180
[  521.270739]  __common_interrupt+0x40/0xd0
[  521.270741]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  521.270743]  common_interrupt+0x7a/0x90
[  521.270747]  </IRQ>
[  521.270747]  <TASK>
[  521.270748]  asm_common_interrupt+0x26/0x40
[  521.270750] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  521.270753] 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 a2 e8 00 <74> 01 c3 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f
[  521.270753] RSP: 0018:ff388687879efd38 EFLAGS: 00000286
[  521.270755] RAX: 00000000ffffffff RBX: ff222d9641f28000 RCX: 0000000000000017
[  521.270756] RDX: ffffffff871ceef5 RSI: 0000000000000282 RDI: ffffffff884c1680
[  521.270756] RBP: 0000000000000001 R08: 0000000000000001 R09: ff222d96423bf400
[  521.270757] R10: ff388687879efe68 R11: 0000000000000001 R12: ffffffff884c1680
[  521.270757] R13: ff3886878035d000 R14: ff222d96423bf400 R15: 0000000000000282
[  521.270758]  ? rpm_suspend+0x185/0x5e0
[  521.270762]  uart_write+0xb4/0x270
[  521.270765]  n_tty_write+0x155/0x560
[  521.270767]  ? swake_up_all+0xd0/0xd0
[  521.270769]  file_tty_write.isra.0+0x15b/0x2a0
[  521.270771]  vfs_write+0x258/0x4d0
[  521.270774]  ? __hrtimer_run_queues+0x161/0x2a0
[  521.270776]  ksys_write+0x73/0xe0
[  521.270777]  do_syscall_64+0xa4/0xfc0
[  521.270779]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  521.270780] RIP: 0033:0x7fa938c86c5e
[  521.270781] 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
[  521.270782] RSP: 002b:00007ffeaad41f30 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  521.270783] RAX: ffffffffffffffda RBX: 000055e3bb4c7170 RCX: 00007fa938c86c5e
[  521.270783] RDX: 0000000000000001 RSI: 000055e3bb4c7170 RDI: 0000000000000001
[  521.270783] RBP: 00007ffeaad41f40 R08: 0000000000000000 R09: 0000000000000000
[  521.270784] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  521.270784] R13: 000055e3bb488010 R14: 0000000000000001 R15: 000055e3bb4c7170
[  521.270785]  </TASK>
[  521.270785] handlers:
[  521.272175] [<00000000091d069c>] serial8250_interrupt
[  521.272204] Disabling IRQ #51