Re: kernel won't boot on a Cyrix MediaGXm (Geode )

[Samuel Sieb]

Juergen Beisert wrote:
> On Dienstag, 22. Juli 2008, Ingo Molnar wrote:
> > could you try to figure out which particular use of getCx86() or
> > setCx86() makes the difference? Here are the suspect nested ones, for
> > which the macro->inline change can be material:
> >
> > $ grep -n 'Cx86.*Cx86' arch/x86/kernel/*/*.c > 1
> >
> > i've applied the patch below to tip/master:
> >
> >    http://people.redhat.com/mingo/tip.git/README
> >
> > could you check whether it boots your system fine, out of box?

It doesn't.

> The only critical tweak I found is the one that changes the "Performance 
> Control Incrementer" because its settings depends on the CPU's core 
> frequency.
> Maybe this tweak should be removed, because the BIOS (hopefully) set it in a 
> way the hardware supports.
This was the only line that was a problem.  See the other branch of this 
thread with Juergen Beisert.

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