K6-II+, persistent strange test results of glibc-2.2.3

Ulrich Drepper drepper@redhat.com
Sat Apr 28 10:08:00 GMT 2001


Byeong-ryeol Kim <jinbo21@hananet.net> writes:

>  is:         -2.48292386531829833984e-01  -0x1.fc80b800000000000000p-3
>  should be:  -2.51362651586532592773e-01  -0x1.01653600000000000000p-2
>  difference:  3.07026505470275878906e-03   0x1.926d0000000000000000p-9
>  ulp       :  103021.0000
>  max.ulp   :  1.0000
> Maximal error of `yn'
>  is      :  103021.0000 ulp
>  accepted:  3.0000 ulp

This normally would suggest that the compiler is broken and you should
use a better one.

If you say that running the same binary produces different results
(and since this is not the case anywhere else) it's either a kernel or
a CPU problem.  AMD's FPU is lousy and I wouldn't be surprised at all.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------



More information about the Libc-alpha mailing list