Re: Freeze on FPU exception with Athlon

From: Linus Torvalds (torvalds@transmeta.com)
Date: Sat Nov 18 2000 - 13:03:38 EST


On Sat, 18 Nov 2000, Alan Cox wrote:

> > Linus Torvalds wrote:
> > >
> > > I sure as hell hope this isn't an Athlon issue. Can other people try
> > > the test-program and see if we have a pattern (ie "it happens only on
> > > Athlons", or "Linus is on drugs and it happens for everybody else").
> >
> > I've tried both variants (fesetenv and inline-asm) with glibc-2.1.3,
> > 2.4.0-test11pre7 and an AMD Thunderbird. Neither does freeze, but
> > both yield:
> >
> > Floating point exception (core dumped)
>
> Compiler specific ?

There's almost certainly more than that. I'd love to have a report on my
asm-only version, but even so I suspect it also requires the 3dnow stuff,
because I'm not able to trigger anything like this on any machines I have
access to (none of them are AMD, though)

                Linus

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