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Re: K6-II+, persistent strange test results of glibc-2.2.3
On Sun, Apr 29, 2001 at 04:12:38AM +0900, Byeong-ryeol Kim wrote:
> On 28 Apr 2001, Ulrich Drepper wrote:
>
> > 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.
> ....
>
> I'll try to test with latest gcc 3.1 pre-release, later.
The strange thing is that I don't get these failures in either -march=i686
or -march=i386 glibc bootstraps with the same compiler. As you said you've
built glibc with no special flags (there is no mention of -march=k6), I
really suspect the CPU.
Jakub