[  155.318073] irq 19: nobody cared (try booting with the "irqpoll" option)
[  155.318088] Pid: 0, comm: swapper Not tainted 2.6.39-ARCH #1
[  155.318094] Call Trace:
[  155.318100]  <IRQ>  [<ffffffff813e1112>] __report_bad_irq+0x40/0xa9
[  155.318132]  [<ffffffff810bf05b>] note_interrupt+0x19b/0x1e0
[  155.318146]  [<ffffffff810bd21f>] handle_irq_event_percpu+0xcf/0x2b0
[  155.318157]  [<ffffffff810bd445>] handle_irq_event+0x45/0x70
[  155.318165]  [<ffffffff810bf867>] handle_fasteoi_irq+0x57/0xd0
[  155.318175]  [<ffffffff8100da62>] handle_irq+0x22/0x40
[  155.318184]  [<ffffffff813eb5aa>] do_IRQ+0x5a/0xe0
[  155.318194]  [<ffffffff813e9293>] common_interrupt+0x13/0x13
[  155.318199]  <EOI>  [<ffffffff813e8c30>] ? _raw_spin_unlock_irqrestore+0x10/0x40
[  155.318220]  [<ffffffff8108d4dc>] clockevents_notify+0x4c/0x170
[  155.318262]  [<ffffffffa0339cdf>] lapic_timer_state_broadcast+0x46/0x48 [processor]
[  155.318276]  [<ffffffffa033a158>] acpi_idle_enter_bm+0x272/0x286 [processor]
[  155.318288]  [<ffffffff8130a1ad>] cpuidle_idle_call+0x9d/0x350
[  155.318301]  [<ffffffff8100a22a>] cpu_idle+0xba/0x100
[  155.318310]  [<ffffffff813c6b82>] rest_init+0x96/0xa4
[  155.318319]  [<ffffffff81745c37>] start_kernel+0x3f2/0x3ff
[  155.318328]  [<ffffffff81745347>] x86_64_start_reservations+0x132/0x136
[  155.318336]  [<ffffffff81745140>] ? early_idt_handlers+0x140/0x140
[  155.318344]  [<ffffffff8174544d>] x86_64_start_kernel+0x102/0x111
[  155.318349] handlers:
[  155.318353] [<ffffffffa00c2e10>] (radeon_driver_irq_handler_kms+0x0/0x20 [radeon])
[  155.318414] Disabling IRQ #19