[  368.887433] Mirror/redirect action on
[  375.837153] clocksource: Long readout interval, skipping watchdog check: cs_nsec: 1510073480 wd_nsec: 1510072762
[  452.611443] irq 51: nobody cared (try booting with the "irqpoll" option)
[  452.611531] CPU: 0 UID: 0 PID: 10560 Comm: perl Not tainted 6.19.0-rc5-virtme #1 PREEMPT(voluntary) 
[  452.611533] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  452.611535] Call Trace:
[  452.611539]  <IRQ>
[  452.611543]  dump_stack_lvl+0x4d/0x70
[  452.611549]  __report_bad_irq+0x35/0xb8
[  452.611551]  note_interrupt.cold+0x28/0x66
[  452.611552]  handle_irq_event+0x6e/0x80
[  452.611555]  handle_edge_irq+0xbc/0x180
[  452.611557]  __common_interrupt+0x40/0xd0
[  452.611560]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  452.611561]  common_interrupt+0x7a/0x90
[  452.611566]  </IRQ>
[  452.611566]  <TASK>
[  452.611566]  asm_common_interrupt+0x26/0x40
[  452.611569] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  452.611572] 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
[  452.611573] RSP: 0018:ff2bb79747e77d38 EFLAGS: 00000286
[  452.611575] RAX: 00000000ffffffff RBX: ff1f480a81d84000 RCX: 0000000000000017
[  452.611576] RDX: ffffffffacfcedb5 RSI: 0000000000000282 RDI: ffffffffae2c2680
[  452.611577] RBP: 0000000000000001 R08: 0000000000000001 R09: ff1f480a83541800
[  452.611577] R10: ff2bb79747e77e68 R11: 0000000000000001 R12: ffffffffae2c2680
[  452.611577] R13: ff2bb7974035d000 R14: ff1f480a83541800 R15: 0000000000000282
[  452.611578]  ? rpm_suspend+0x185/0x5e0
[  452.611583]  uart_write+0xb4/0x270
[  452.611586]  n_tty_write+0x155/0x560
[  452.611588]  ? swake_up_all+0xd0/0xd0
[  452.611591]  file_tty_write.isra.0+0x15b/0x2a0
[  452.611592]  vfs_write+0x258/0x4d0
[  452.611595]  ? __hrtimer_run_queues+0x161/0x2a0
[  452.611598]  ksys_write+0x73/0xe0
[  452.611599]  do_syscall_64+0xa4/0xfc0
[  452.611600]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  452.611602] RIP: 0033:0x7f24b78d5c5e
[  452.611603] 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
[  452.611604] RSP: 002b:00007ffea2a50be0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  452.611605] RAX: ffffffffffffffda RBX: 000055e9925e6240 RCX: 00007f24b78d5c5e
[  452.611605] RDX: 0000000000000001 RSI: 000055e9925e6240 RDI: 0000000000000001
[  452.611606] RBP: 00007ffea2a50bf0 R08: 0000000000000000 R09: 0000000000000000
[  452.611606] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  452.611606] R13: 000055e9925a7010 R14: 0000000000000001 R15: 000055e9925e6240
[  452.611607]  </TASK>
[  452.611608] handlers:
[  452.613019] [<000000001207059c>] serial8250_interrupt
[  452.613053] Disabling IRQ #51