[  373.027636] Mirror/redirect action on
[  381.898644] clocksource: Long readout interval, skipping watchdog check: cs_nsec: 1409084037 wd_nsec: 1409083531
[  502.392678] irq 51: nobody cared (try booting with the "irqpoll" option)
[  502.392757] CPU: 0 UID: 0 PID: 10556 Comm: perl Not tainted 6.19.0-rc7-virtme #1 PREEMPT(voluntary) 
[  502.392761] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  502.392762] Call Trace:
[  502.392767]  <IRQ>
[  502.392771]  dump_stack_lvl+0x4d/0x70
[  502.392778]  __report_bad_irq+0x35/0xb8
[  502.392781]  note_interrupt.cold+0x28/0x66
[  502.392783]  handle_irq_event+0x6e/0x80
[  502.392787]  handle_edge_irq+0xbc/0x180
[  502.392789]  __common_interrupt+0x40/0xd0
[  502.392792]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  502.392795]  common_interrupt+0x7a/0x90
[  502.392799]  </IRQ>
[  502.392800]  <TASK>
[  502.392800]  asm_common_interrupt+0x26/0x40
[  502.392803] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  502.392806] 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
[  502.392807] RSP: 0018:ff62318bc9a33d38 EFLAGS: 00000286
[  502.392810] RAX: 00000000ffffffff RBX: ff15b58fc1f28000 RCX: 0000000000000017
[  502.392811] RDX: ffffffff9e1cf5b5 RSI: 0000000000000282 RDI: ffffffff9f4c2680
[  502.392812] RBP: 0000000000000001 R08: 0000000000000001 R09: ff15b58fc23bf800
[  502.392812] R10: ff62318bc9a33e68 R11: 0000000000000001 R12: ffffffff9f4c2680
[  502.392813] R13: ff62318bc034d000 R14: ff15b58fc23bf800 R15: 0000000000000282
[  502.392814]  ? rpm_suspend+0x185/0x5e0
[  502.392819]  uart_write+0xb4/0x270
[  502.392823]  n_tty_write+0x155/0x560
[  502.392825]  ? swake_up_all+0xd0/0xd0
[  502.392828]  file_tty_write.isra.0+0x15b/0x2a0
[  502.392830]  vfs_write+0x258/0x4d0
[  502.392833]  ? __hrtimer_run_queues+0x161/0x2a0
[  502.392836]  ksys_write+0x73/0xe0
[  502.392838]  do_syscall_64+0xa4/0xfc0
[  502.392840]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  502.392841] RIP: 0033:0x7f982e22fc5e
[  502.392844] 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
[  502.392845] RSP: 002b:00007fffde971b50 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  502.392846] RAX: ffffffffffffffda RBX: 00005634ccebe150 RCX: 00007f982e22fc5e
[  502.392847] RDX: 0000000000000001 RSI: 00005634ccebe150 RDI: 0000000000000001
[  502.392847] RBP: 00007fffde971b60 R08: 0000000000000000 R09: 0000000000000000
[  502.392848] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  502.392848] R13: 00005634cce7f010 R14: 0000000000000001 R15: 00005634ccebe150
[  502.392850]  </TASK>
[  502.392850] handlers:
[  502.394244] [<00000000f359c8bb>] serial8250_interrupt
[  502.394278] Disabling IRQ #51