[  367.394693] Mirror/redirect action on
[  375.607091] clocksource: Long readout interval, skipping watchdog check: cs_nsec: 1441153564 wd_nsec: 1441153620
[  471.988026] irq 51: nobody cared (try booting with the "irqpoll" option)
[  471.988106] CPU: 0 UID: 0 PID: 10559 Comm: perl Not tainted 6.19.0-rc1-virtme #1 PREEMPT(voluntary) 
[  471.988108] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  471.988110] Call Trace:
[  471.988113]  <IRQ>
[  471.988116]  dump_stack_lvl+0x4d/0x70
[  471.988123]  __report_bad_irq+0x35/0xb8
[  471.988125]  note_interrupt.cold+0x28/0x66
[  471.988126]  handle_irq_event+0x6e/0x80
[  471.988129]  handle_edge_irq+0xbc/0x180
[  471.988131]  __common_interrupt+0x40/0xd0
[  471.988133]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  471.988135]  common_interrupt+0x7a/0x90
[  471.988139]  </IRQ>
[  471.988139]  <TASK>
[  471.988140]  asm_common_interrupt+0x26/0x40
[  471.988142] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  471.988145] 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
[  471.988146] RSP: 0018:ff62f9058041fd38 EFLAGS: 00000286
[  471.988148] RAX: 00000000ffffffff RBX: ff2e639581f28000 RCX: 0000000000000017
[  471.988149] RDX: ffffffff9f3ce675 RSI: 0000000000000282 RDI: ffffffffa06c0680
[  471.988149] RBP: 0000000000000001 R08: 0000000000000001 R09: ff2e639582e92400
[  471.988150] R10: ff62f9058041fe68 R11: 0000000000000001 R12: ffffffffa06c0680
[  471.988150] R13: ff62f9058034d000 R14: ff2e639582e92400 R15: 0000000000000282
[  471.988151]  ? rpm_suspend+0x185/0x5e0
[  471.988155]  uart_write+0xb4/0x270
[  471.988158]  n_tty_write+0x155/0x560
[  471.988161]  ? swake_up_all+0xd0/0xd0
[  471.988163]  file_tty_write.isra.0+0x15b/0x2a0
[  471.988164]  vfs_write+0x258/0x4d0
[  471.988168]  ksys_write+0x73/0xe0
[  471.988169]  do_syscall_64+0xa4/0xfc0
[  471.988171]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  471.988172] RIP: 0033:0x7f045e734c5e
[  471.988174] 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
[  471.988175] RSP: 002b:00007fff2fb7bbe0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  471.988176] RAX: ffffffffffffffda RBX: 0000559827377180 RCX: 00007f045e734c5e
[  471.988177] RDX: 0000000000000001 RSI: 0000559827377180 RDI: 0000000000000001
[  471.988177] RBP: 00007fff2fb7bbf0 R08: 0000000000000000 R09: 0000000000000000
[  471.988177] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  471.988178] R13: 0000559827338010 R14: 0000000000000001 R15: 0000559827377180
[  471.988179]  </TASK>
[  471.988179] handlers:
[  471.989326] [<00000000f1a96acf>] serial8250_interrupt
[  471.989354] Disabling IRQ #51