Re: linux-next: Tree for June 13: IO APIC breakage on HP nx6325

From: Ingo Molnar
Date: Wed Jun 18 2008 - 09:14:55 EST



* Rafael J. Wysocki <rjw@xxxxxxx> wrote:

> > Thanks, it eliminates the WARNING, but still the box doesn't work
> > with the "x86: add C1E aware idle function" patch applied, even with
> > 'highres=off'.
> >
> > The main symptom is that CPU loads are computed incorrectly (I got X
> > using 126% of CPU time from 'top', for example). Apart from this,
> > some processes (like gkrellm) seem to be 'frozen' and only change
> > their state in 'jumps', as though they only got CPU from time to
> > time at random.
> >
> > Reverting the above-mentioned patch fixes those problems.
>
> Ah. If your fix is replaced with the appended one, the system happily
> works with C1E and highres.

very nice! I have applied your fix to tip/x86/cpu.

does this resolve all problems on your box, or is the IO-APIC problem
still open?

Ingo
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