[  654.324419] irq 51: nobody cared (try booting with the "irqpoll" option)
[  654.324499] CPU: 0 UID: 0 PID: 14873 Comm: perl Not tainted 6.19.0-rc7-virtme #1 PREEMPT(voluntary) 
[  654.324501] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  654.324503] Call Trace:
[  654.324506]  <IRQ>
[  654.324509]  dump_stack_lvl+0x4d/0x70
[  654.324516]  __report_bad_irq+0x35/0xb8
[  654.324519]  note_interrupt.cold+0x28/0x66
[  654.324520]  handle_irq_event+0x6e/0x80
[  654.324523]  handle_edge_irq+0xbc/0x180
[  654.324525]  __common_interrupt+0x40/0xd0
[  654.324528]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  654.324530]  common_interrupt+0x7a/0x90
[  654.324534]  </IRQ>
[  654.324534]  <TASK>
[  654.324534]  asm_common_interrupt+0x26/0x40
[  654.324537] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  654.324540] 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 92 e8 00 <74> 01 c3 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f
[  654.324541] RSP: 0018:ff5a4cbb41ecfd38 EFLAGS: 00000286
[  654.324543] RAX: 00000000ffffffff RBX: ff3f1f40c1f9c000 RCX: 0000000000000017
[  654.324544] RDX: ffffffff989cf575 RSI: 0000000000000282 RDI: ffffffff99cc2680
[  654.324544] RBP: 0000000000000001 R08: 0000000000000001 R09: ff3f1f40c1f09800
[  654.324544] R10: ff5a4cbb41ecfe68 R11: 0000000000000001 R12: ffffffff99cc2680
[  654.324545] R13: ff5a4cbb40365000 R14: ff3f1f40c1f09800 R15: 0000000000000282
[  654.324545]  ? rpm_suspend+0x185/0x5e0
[  654.324550]  uart_write+0xb4/0x270
[  654.324553]  n_tty_write+0x155/0x560
[  654.324555]  ? swake_up_all+0xd0/0xd0
[  654.324558]  file_tty_write.isra.0+0x15b/0x2a0
[  654.324559]  vfs_write+0x258/0x4d0
[  654.324563]  ? __hrtimer_run_queues+0x161/0x2a0
[  654.324565]  ksys_write+0x73/0xe0
[  654.324566]  do_syscall_64+0xa4/0xfc0
[  654.324568]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  654.324569] RIP: 0033:0x7f90b0b99c5e
[  654.324571] Code: 4d 89 d8 e8 34 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
[  654.324571] RSP: 002b:00007ffe401995e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  654.324572] RAX: ffffffffffffffda RBX: 00005632e024d2f0 RCX: 00007f90b0b99c5e
[  654.324573] RDX: 0000000000000001 RSI: 00005632e024d2f0 RDI: 0000000000000001
[  654.324573] RBP: 00007ffe401995f0 R08: 0000000000000000 R09: 0000000000000000
[  654.324573] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  654.324574] R13: 00005632e020e010 R14: 0000000000000001 R15: 00005632e024d2f0
[  654.324575]  </TASK>
[  654.324575] handlers:
[  654.325915] [<00000000b5fa7488>] serial8250_interrupt
[  654.325949] Disabling IRQ #51
[  721.955951] tc (18844) used greatest stack depth: 11672 bytes left