[  522.783700] irq 51: nobody cared (try booting with the "irqpoll" option)
[  522.783781] CPU: 0 UID: 0 PID: 7417 Comm: perl Not tainted 6.19.0-rc4-virtme #1 PREEMPT(voluntary) 
[  522.783784] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  522.783785] Call Trace:
[  522.783788]  <IRQ>
[  522.783791]  dump_stack_lvl+0x4d/0x70
[  522.783798]  __report_bad_irq+0x35/0xb8
[  522.783800]  note_interrupt.cold+0x28/0x66
[  522.783802]  handle_irq_event+0x6e/0x80
[  522.783805]  handle_edge_irq+0xbc/0x180
[  522.783807]  __common_interrupt+0x40/0xd0
[  522.783809]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  522.783811]  common_interrupt+0x7a/0x90
[  522.783815]  </IRQ>
[  522.783815]  <TASK>
[  522.783815]  asm_common_interrupt+0x26/0x40
[  522.783817] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  522.783820] 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
[  522.783821] RSP: 0018:ff7a10ddc29abd38 EFLAGS: 00000286
[  522.783823] RAX: 00000000ffffffff RBX: ff4f863c41f64000 RCX: 0000000000000017
[  522.783824] RDX: ffffffff8cbce9f5 RSI: 0000000000000282 RDI: ffffffff8dec1680
[  522.783824] RBP: 0000000000000001 R08: 0000000000000001 R09: ff4f863c443e2000
[  522.783825] R10: ff7a10ddc29abe68 R11: 0000000000000001 R12: ffffffff8dec1680
[  522.783825] R13: ff7a10ddc035d000 R14: ff4f863c443e2000 R15: 0000000000000282
[  522.783826]  ? rpm_suspend+0x185/0x5e0
[  522.783830]  uart_write+0xb4/0x270
[  522.783833]  n_tty_write+0x155/0x560
[  522.783835]  ? swake_up_all+0xd0/0xd0
[  522.783837]  file_tty_write.isra.0+0x15b/0x2a0
[  522.783838]  vfs_write+0x258/0x4d0
[  522.783842]  ? __hrtimer_run_queues+0x161/0x2a0
[  522.783844]  ksys_write+0x73/0xe0
[  522.783845]  do_syscall_64+0xa4/0xfc0
[  522.783847]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  522.783848] RIP: 0033:0x7f461a748c5e
[  522.783850] 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
[  522.783850] RSP: 002b:00007ffe837cb770 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  522.783851] RAX: ffffffffffffffda RBX: 000055a7b0ed72f0 RCX: 00007f461a748c5e
[  522.783852] RDX: 0000000000000001 RSI: 000055a7b0ed72f0 RDI: 0000000000000001
[  522.783852] RBP: 00007ffe837cb780 R08: 0000000000000000 R09: 0000000000000000
[  522.783853] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  522.783853] R13: 000055a7b0e98010 R14: 0000000000000001 R15: 000055a7b0ed72f0
[  522.783854]  </TASK>
[  522.783854] handlers:
[  522.785156] [<0000000060d65109>] serial8250_interrupt
[  522.785189] Disabling IRQ #51
[  588.296057] tc (11286) used greatest stack depth: 11728 bytes left