[  459.526843] clocksource: Long readout interval, skipping watchdog check: cs_nsec: 1365334234 wd_nsec: 1365333746
[  467.575622] irq 51: nobody cared (try booting with the "irqpoll" option)
[  467.575728] CPU: 0 UID: 0 PID: 21249 Comm: perl Not tainted 6.19.0-rc3-virtme #1 PREEMPT(voluntary) 
[  467.575730] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  467.575732] Call Trace:
[  467.575735]  <IRQ>
[  467.575738]  dump_stack_lvl+0x4d/0x70
[  467.575744]  __report_bad_irq+0x35/0xb8
[  467.575747]  note_interrupt.cold+0x28/0x66
[  467.575748]  handle_irq_event+0x6e/0x80
[  467.575751]  handle_edge_irq+0xbc/0x180
[  467.575753]  __common_interrupt+0x40/0xd0
[  467.575756]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  467.575758]  common_interrupt+0x7a/0x90
[  467.575762]  </IRQ>
[  467.575762]  <TASK>
[  467.575763]  asm_common_interrupt+0x26/0x40
[  467.575765] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  467.575768] 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
[  467.575769] RSP: 0018:ff62868a002a3d38 EFLAGS: 00000286
[  467.575770] RAX: 00000000ffffffff RBX: ff2418a181f94000 RCX: 0000000000000017
[  467.575771] RDX: ffffffffb85ce8f5 RSI: 0000000000000282 RDI: ffffffffb98c1680
[  467.575772] RBP: 0000000000000001 R08: 0000000000000001 R09: ff2418a181ef6c00
[  467.575772] R10: ff62868a002a3e68 R11: 0000000000000001 R12: ffffffffb98c1680
[  467.575773] R13: ff62868a0035d000 R14: ff2418a181ef6c00 R15: 0000000000000282
[  467.575774]  ? rpm_suspend+0x185/0x5e0
[  467.575778]  uart_write+0xb4/0x270
[  467.575781]  n_tty_write+0x155/0x560
[  467.575783]  ? swake_up_all+0xd0/0xd0
[  467.575786]  file_tty_write.isra.0+0x15b/0x2a0
[  467.575787]  vfs_write+0x258/0x4d0
[  467.575790]  ? __hrtimer_run_queues+0x161/0x2a0
[  467.575792]  ksys_write+0x73/0xe0
[  467.575793]  do_syscall_64+0xa4/0xfc0
[  467.575796]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  467.575797] RIP: 0033:0x7f2efaeabc5e
[  467.575798] 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
[  467.575799] RSP: 002b:00007ffd2e4fa600 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  467.575800] RAX: ffffffffffffffda RBX: 00005589bad0f2b0 RCX: 00007f2efaeabc5e
[  467.575800] RDX: 0000000000000001 RSI: 00005589bad0f2b0 RDI: 0000000000000001
[  467.575801] RBP: 00007ffd2e4fa610 R08: 0000000000000000 R09: 0000000000000000
[  467.575801] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  467.575802] R13: 00005589bacd0010 R14: 0000000000000001 R15: 00005589bad0f2b0
[  467.575802]  </TASK>
[  467.575803] handlers:
[  467.577498] [<0000000088bc1095>] serial8250_interrupt
[  467.577543] Disabling IRQ #51