已经两天了，我的 Debian Wheezy 7 明显无缘无故地随机禁用 IRQ。 IRQ 禁用后，我无法安装硬盘，必须重新启动。
这是系统日志的输出：
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438414] irq 18: nobody cared (try booting with the "irqpoll" option)
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438419] Pid: 0, comm: swapper/0 Tainted: G O 3.2.0-4-amd64 #1 Debian 3.2.57-3+deb7u2
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438421] Call Trace:
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438422] <IRQ> [<ffffffff81092bad>] ? __report_bad_irq+0x2c/0xb5
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438429] [<ffffffff81092f6a>] ? note_interrupt+0x170/0x1f2
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438431] [<ffffffff8109132c>] ? handle_irq_event_percpu+0x15f/0x17d
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438432] [<ffffffff8109137e>] ? handle_irq_event+0x34/0x52
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438435] [<ffffffff8106c189>] ? arch_local_irq_save+0x11/0x17
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438437] [<ffffffff810936e1>] ? handle_fasteoi_irq+0x7c/0xaf
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438440] [<ffffffff8100f9e1>] ? handle_irq+0x1d/0x21
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438442] [<ffffffff8100f5ba>] ? do_IRQ+0x42/0x98
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438445] [<ffffffff8134feee>] ? common_interrupt+0x6e/0x6e
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438446] <EOI> [<ffffffff811b0d34>] ? timerqueue_add+0x80/0xa0
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438450] [<ffffffff811eec0d>] ? intel_idle+0xea/0x119
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438452] [<ffffffff811eebec>] ? intel_idle+0xc9/0x119
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438455] [<ffffffff81270851>] ? cpuidle_idle_call+0xec/0x179
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438457] [<ffffffff8100d242>] ? cpu_idle+0xa5/0xf2
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438460] [<ffffffff816abb36>] ? start_kernel+0x3b8/0x3c3
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438462] [<ffffffff816ab140>] ? early_idt_handlers+0x140/0x140
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438463] [<ffffffff816ab3c4>] ? x86_64_start_kernel+0x104/0x111
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438464] handlers:
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438487] [<ffffffffa00f5cfd>] ata_bmdma_interrupt
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438490] [<ffffffffa0051b0b>] sil24_interrupt
Jul 15 01:56:23 GC01SRVR kernel: [ 5358.438492] Disabling IRQ #18
问题的根源可能是什么？解决问题的途径是什么？