2.6.8 error message - irq 7: nobody cared

[Ray Curd <rayjc@superdad.freeserve.co.uk>]

Hello to all,

I recently upgraded to the 2.6.8 kernel and everything went fine but 
then I started getting these intermitent error messages on the 
console

irq 7: nobody cared!
[__report_bad_irq+42/144] __report_bad_irq+0x2a/0x90
[note_interrupt+108/160] note_interrupt+0x6c/0xa0
[do_IRQ+289/304] do_IRQ+0x121/0x130
[common_interrupt+24/32] common_interrupt+0x18/0x20
[__do_softirq+48/128] __do_softirq+0x30/0x80
[do_softirq+38/48] do_softirq+0x26/0x30
[do_IRQ+253/304] do_IRQ+0xfd/0x130
[common_interrupt+24/32] common_interrupt+0x18/0x20
[default_idle+35/48] default_idle+0x23/0x30
[cpu_idle+44/64] cpu_idle+0x2c/0x40
[start_kernel+410/480] start_kernel+0x19a/0x1e0
[unknown_bootoption+0/352] unknown_bootoption+0x0/0x160
[__crc_get_wchan+3875811/6133658] (ide_intr+0x0/0x190 [ide_core])
Disabling IRQ #7

Sometimes it was just the Disabling IRQ #7 on its own, and they 
occured about every two minutes, They didn't happen every time one 
day I ran without any at all. There was no other effects on my m/c as 
far as I could tell and at the moment I have returned to 2.4.27 with 
no sign of them at all.

As I feel completely out of my depth I hope someone may be able to 
explain what may be happening.

Regards 

Ray Curd.