Re: [coLinux-users] Problems with 20040710 snapshot

[<sl...@bl...>]

Peng <rin...@gm...> writes:

> The floating point error is probably caused by the CFLAGS.  I solved
> it by recompiling the system (at least, xfree) with "-march=i686".

By the way, this is equivalent to -march=pentiumpro.  Inside GCC,
using -march=pentiumpro instead of -march=pentium4 uses the
PROCESSOR_PENTIUMPRO flag instead of PROCESSOR_PENTIUM4, and turns off
PTA_SSE, PTA_SSE2, PTA_MMX, PTA_PREFETCH_SSE.  (Both -march=pentium2
and -march=pentium3 also use PROCESSOR_PENTIUMPRO.)

I am making a wild guess that it will be enough to turn off PTA_MMX.
I want to try some recompiling with "-march=pentium4 -mno-mmx" to see
if that is enough to fix things.

-- 
Joe

> Good luck,
> 
> Peng
> 
> On Sat, 21 Aug 2004 13:49:20 +0200, Ronald Pijnacker <pij...@ds...> wrote:
> > On Thu, Aug 19, 2004 at 04:10:37PM -0400, Peng wrote:
> > > Which distribution are you using?
> > 
> > I am using the same Gentoo linux that I also use natively.
> > I do compile with optimization flags for the Pentium4 that I have, but
> > that's never given any problems before.
> > 
> > Regards,
> > 
> >   Ronald.
> >
> 
> 
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