IRQ 7 problem

[Sam Folk-Williams]

I'm getting this in my syslog constantly -- any suggestions on what's
causing this or how to fix it?

Sep 25 06:52:02 localhost kernel: irq 7: nobody cared!
Sep 25 06:52:02 localhost kernel:  [__report_bad_irq+49/115]
__report_bad_irq+0x31/0x73
Sep 25 06:52:02 localhost kernel:  [note_interrupt+76/111]
note_interrupt+0x4c/0x6f
Sep 25 06:52:02 localhost kernel:  [do_IRQ+146/249] do_IRQ+0x92/0xf9
Sep 25 06:52:02 localhost kernel:  [common_interrupt+24/32]
common_interrupt+0x18/0x20
Sep 25 06:52:02 localhost kernel:  [__do_softirq+44/115] __do_softirq+0x2c/0x73
Sep 25 06:52:02 localhost kernel:  [do_softirq+34/38] do_softirq+0x22/0x26
Sep 25 06:52:02 localhost kernel:  [do_IRQ+229/249] do_IRQ+0xe5/0xf9
Sep 25 06:52:02 localhost kernel:  [common_interrupt+24/32]
common_interrupt+0x18/0x20
Sep 25 06:52:02 localhost kernel:  [default_idle+0/38] default_idle+0x0/0x26
Sep 25 06:52:02 localhost kernel:  [default_idle+35/38] default_idle+0x23/0x26
Sep 25 06:52:02 localhost kernel:  [cpu_idle+29/50] cpu_idle+0x1d/0x32
Sep 25 06:52:02 localhost kernel:  [start_kernel+403/407]
start_kernel+0x193/0x197
Sep 25 06:52:02 localhost kernel: handlers:
Sep 25 06:52:02 localhost kernel: [__crc_seq_read+7525436/8342461]
(ide_intr+0x0/0x15d [ide_core])
Sep 25 06:52:02 localhost kernel: Disabling IRQ #7