Re: Opteron bug

Andi Kleen
2004-06-20T11:49:30Z

On Sun, 20 Jun 2004 13:47:17 +0200
"R. J. Wysocki" <rjwysocki@sisk.pl> wrote:

> On Sunday 20 of June 2004 15:22, Andi Kleen wrote:
> > On Sat, 19 Jun 2004 22:29:14 +0200
> >
> > "R. J. Wysocki" <rjwysocki@sisk.pl> wrote:
> > > Hi,
> > >
> > > I hope everyone interested in the development for Opteron is aware of the
> > > bug described here:
> > >
> > > http://www.3dchips.net/content/story.php?id=3927
> >
> > The kernel never uses backwards REP prefixes.
>
> So it doesn't matter. :-)

Some user space program could still use it.

You'll have to live with that. CPUs like all other complex
systems have bugs.

> Well, is there any case in which the gcc can produce such stuff?

With inline assembly only I guess.

-Andi