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Re: Non-FPU Math in glibc 2.2.4

From: Marius Groeger
Subject: Re: Non-FPU Math in glibc 2.2.4
Date: Mon, 29 Oct 2001 13:01:45 +0100 (CET)

On Mon, 29 Oct 2001, Andreas Jaeger wrote:

> > last week I reported a problem re the ieee754/dbl-64 implementation. I
> > take it that the number of math gurus in general as well as on this
> > list is pretty small. To anyone of those out there: is there anything
> > I can do to help find the bug?
> Properly test your FPU emulation first, it might be that this one is
> broken.

Do you have any recommendation on how to do this? Actually we were
testing the FPE when we ran into this bug, so this is some kind of
catch 22. We used a pretty old FP test program called "paranoia".

I don't think that the FPE is the culprit though, since the bug shows
up on various kinds of systems with different CPUs and kernel versions
(reaching from 2.2.14 to 2.4.3). Will do more testing, though.


Marius Groeger           SYSGO Real-Time Solutions GmbH     address@hidden
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