If it's any help the problem doesn't appear on Xen3 enabled kernels
when ACPI is turned off. So it looks like this is most definitely an
ACPI related problem.

Mathieu

On 8/6/06, Martin Husemann <martin@duskware.de> wrote:
> On Sun, Aug 06, 2006 at 05:30:36AM +0000, Mathieu Boespflug wrote:
> > I'm experiencing the exact same problem as Ed on a D600 Dell laptop. Has any
> > workaround or fix to this issue been found yet? I can't find any bug reports
> > related to this.
>
> Maybe not the same, but could be related:
>
>   http://www.netbsd.org/cgi-bin/query-pr-single.pl?number=33922
>
> I think there is some basic problem with shared interrupts.
>
> I have tried everyhthing I could to diagnose it further, looking
> for culprits in the ath driver and the auich driver (those two share
> interrupts in my case), but I haven't found anything. I lack i386 low
> level and/or acpi skills, so this is probably beyound me.
>
> Maybe this should be added to the "critical bugs to fix for 4.0" list?
>
> Martin
>