i386-class support changed in F-13?

[Bruno Wolff III]

On Tue, Jun 01, 2010 at 22:43:25 +0200,
  Gland Vador <glandvador at yahoo.com> wrote:
> On 05.04.2010 14:48, Dan Horák wrote:
> >
> > I was trying to install i686 variant of F-13 to an Alix board (2D13 with
> > Geode LX) and got into troubles. The kernel boots fine, but when it
> > should start initramfs the kernel panics. Everything works well when
> > using complete F-12 environment and when using F-12 kernel+initramfs
> > with F-13 rootfs the initramfs stuff runs well, but when I try to
> > manually chroot into the F-13 from the dracut shell I get an "Invalid
> > instruction" exception. I though last change in x86 CPU support was in
> > F-12 (http://fedoraproject.org/wiki/Features/F12X86Support) and it
> > explicitly talks about Geode LX as still supported. So the question is
> > whether F-13 should still work on Geode LX?
> >
> 
> Sorry to reopen this old topic, but the conclusion is not obvious. The 
> F13 is out and it seems to have lost support for the Geode LX CPU
> (cf.http://sharkcz.livejournal.com/5708.html), due to the use of the 
> NOPL instruction by GCC.
> 
> Will this CPU be supported during F13 and above or should I search for a 
> new distribution ?

I don't believe there was any intentional change in supported CPUs for F13.
If it was supposed to work in F12, I think it is supposed to work in F13.
Did you file a bug against gcc?