[  616.587638] irq 51: nobody cared (try booting with the "irqpoll" option)
[  616.587723] CPU: 0 UID: 0 PID: 3452 Comm: perl Not tainted 6.19.0-rc3-virtme #1 PREEMPT(voluntary) 
[  616.587726] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  616.587727] Call Trace:
[  616.587730]  <IRQ>
[  616.587733]  dump_stack_lvl+0x4d/0x70
[  616.587739]  __report_bad_irq+0x35/0xb8
[  616.587742]  note_interrupt.cold+0x28/0x66
[  616.587743]  handle_irq_event+0x6e/0x80
[  616.587746]  handle_edge_irq+0xbc/0x180
[  616.587749]  __common_interrupt+0x40/0xd0
[  616.587751]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  616.587753]  common_interrupt+0x7a/0x90
[  616.587758]  </IRQ>
[  616.587758]  <TASK>
[  616.587758]  asm_common_interrupt+0x26/0x40
[  616.587760] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  616.587764] 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
[  616.587765] RSP: 0018:ff462c4e41cdbd38 EFLAGS: 00000286
[  616.587767] RAX: 00000000ffffffff RBX: ff450c29c1f68000 RCX: 0000000000000017
[  616.587767] RDX: ffffffff85fcea75 RSI: 0000000000000282 RDI: ffffffff872c0680
[  616.587768] RBP: 0000000000000001 R08: 0000000000000001 R09: ff450c29c1dcec00
[  616.587768] R10: ff462c4e41cdbe68 R11: 0000000000000001 R12: ffffffff872c0680
[  616.587768] R13: ff462c4e4034d000 R14: ff450c29c1dcec00 R15: 0000000000000282
[  616.587769]  ? rpm_suspend+0x185/0x5e0
[  616.587773]  uart_write+0xb4/0x270
[  616.587776]  n_tty_write+0x155/0x560
[  616.587778]  ? swake_up_all+0xd0/0xd0
[  616.587781]  file_tty_write.isra.0+0x15b/0x2a0
[  616.587782]  vfs_write+0x258/0x4d0
[  616.587785]  ? __hrtimer_run_queues+0x161/0x2a0
[  616.587788]  ksys_write+0x73/0xe0
[  616.587789]  do_syscall_64+0xa4/0xfc0
[  616.587790]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  616.587791] RIP: 0033:0x7fd210e28c5e
[  616.587794] 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
[  616.587794] RSP: 002b:00007ffc21c67600 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  616.587795] RAX: ffffffffffffffda RBX: 00005610bb0021f0 RCX: 00007fd210e28c5e
[  616.587796] RDX: 0000000000000001 RSI: 00005610bb0021f0 RDI: 0000000000000001
[  616.587796] RBP: 00007ffc21c67610 R08: 0000000000000000 R09: 0000000000000000
[  616.587796] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  616.587797] R13: 00005610bafc3010 R14: 0000000000000001 R15: 00005610bb0021f0
[  616.587797]  </TASK>
[  616.587798] handlers:
[  616.589192] [<00000000e40d63d7>] serial8250_interrupt
[  616.589230] Disabling IRQ #51