I get this at my testing box. Can anybody help me debug/fix this?
Mar 21 20:29:05 box kernel: [ 4787.555028] irq 19: nobody cared (try booting with the "irqpoll" option) Mar 21 20:29:05 box kernel: [ 4787.555035] Pid: 0, comm: swapper/0 Tainted: P O 3.2.0-1-amd64 #1 Mar 21 20:29:05 box kernel: [ 4787.555038] Call Trace: Mar 21 20:29:05 box kernel: [ 4787.555040] <IRQ> [<ffffffff81092062>] ? __report_bad_irq+0x2c/0xb5 Mar 21 20:29:05 box kernel: [ 4787.555051] [<ffffffff810922ea>] ? note_interrupt+0x174/0x1f6 Mar 21 20:29:05 box kernel: [ 4787.555055] [<ffffffff8109069f>] ? handle_irq_event_percpu+0x162/0x180 Mar 21 20:29:05 box kernel: [ 4787.555060] [<ffffffff810135b2>] ? read_tsc+0x5/0x14 Mar 21 20:29:05 box kernel: [ 4787.555063] [<ffffffff810906f1>] ? handle_irq_event+0x34/0x53 Mar 21 20:29:05 box kernel: [ 4787.555069] [<ffffffff8106b8e1>] ? arch_local_irq_save+0x11/0x17 Mar 21 20:29:05 box kernel: [ 4787.555072] [<ffffffff81092a29>] ? handle_fasteoi_irq+0x7c/0x9e Mar 21 20:29:05 box kernel: [ 4787.555077] [<ffffffff8100f835>] ? handle_irq+0x1d/0x21 Mar 21 20:29:05 box kernel: [ 4787.555081] [<ffffffff8100f565>] ? do_IRQ+0x42/0x98 Mar 21 20:29:05 box kernel: [ 4787.555085] [<ffffffff81340aee>] ? common_interrupt+0x6e/0x6e Mar 21 20:29:05 box kernel: [ 4787.555087] <EOI> [<ffffffff811ad378>] ? timerqueue_add+0x80/0xa0 Mar 21 20:29:05 box kernel: [ 4787.555096] [<ffffffff811e39c9>] ? intel_idle+0xea/0x119 Mar 21 20:29:05 box kernel: [ 4787.555100] [<ffffffff811e39a8>] ? intel_idle+0xc9/0x119 Mar 21 20:29:05 box kernel: [ 4787.555105] [<ffffffff812637cb>] ? cpuidle_idle_call+0xec/0x179 Mar 21 20:29:05 box kernel: [ 4787.555109] [<ffffffff8100d255>] ? cpu_idle+0xa5/0xf2 Mar 21 20:29:05 box kernel: [ 4787.555114] [<ffffffff816a9b3d>] ? start_kernel+0x3bd/0x3c8 Mar 21 20:29:05 box kernel: [ 4787.555118] [<ffffffff816a9140>] ? early_idt_handlers+0x140/0x140 Mar 21 20:29:05 box kernel: [ 4787.555121] [<ffffffff816a93c4>] ? x86_64_start_kernel+0x104/0x111 Mar 21 20:29:05 box kernel: [ 4787.555124] handlers: Mar 21 20:29:05 box kernel: [ 4787.555144] [<ffffffffa0086be1>] ata_bmdma_interrupt Mar 21 20:29:05 box kernel: [ 4787.555151] [<ffffffffa01296c8>] irq_handler Mar 21 20:29:05 box kernel: [ 4787.555153] Disabling IRQ #19 thanks!