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From: Jon Lido <jlido@goof.com>
To: Morten Rodal <morten@rodal.no>
Date: Tue, 20 May 2003 12:16:10 -0400
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cc: freebsd-current@freebsd.org
Subject: Re: gcc/libm floating-point bug?
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Well, I do have a P4, and had built everything with -march=pentium4.  However, 
rebuilding the kernel and modules with -march=pentium3 produces the same 
results.

Incidentally, my audio hardware is:
pcm0: <Intel 82801CA (ICH3)> port 0xdc80-0xdcbf,0xd800-0xd8ff irq 11 at device 
31.5 on pci0
pcm0: <Cirrus Logic CS4205 AC97 Codec>

(Dell Inspiron 8200 laptop)

-Jon

On Tuesday 20 May 2003 11:30 am, Morten Rodal wrote:
> On Tue, May 20, 2003 at 10:25:30AM -0400, Jon Lido wrote:
> > Where I've noticed the problem is playing when lossy
> > audio.  When playing MP3s with artsd, xmms, or mpg123, I can get
> > extremely noisy output (like static), with the audio distorted, but
> > recognizable underneath.
>
> I get the same problem with sound if I compile the kernel sound
> drivers with the ``CPUTYPE=p4'' (which adds -march=pentium4 to the
> compiler).  When I went down to ``CPUTYPE=p3'' everything works fine.
> Wether this is a bug in the math library or with gcc (more likely?) I
> don't know.