Date: Tue, 20 May 2003 18:29:58 +0200 From: Morten Rodal <morten@rodal.no> To: Jon Lido <jlido@goof.com> Cc: freebsd-current@freebsd.org Subject: Re: gcc/libm floating-point bug? Message-ID: <20030520162958.GB530@atlantis.rodal.no> In-Reply-To: <200305201216.10964.jlido@goof.com> References: <200305201025.30296.jlido@goof.com> <20030520152856.GA530@atlantis.rodal.no> <200305201216.10964.jlido@goof.com>
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--mxv5cy4qt+RJ9ypb Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Then we have the same hardware (and laptop for that matter). Also make sure you are not running with any optimizations (i.e. use default CFLAGS; -O -pipe). On Tue, May 20, 2003 at 12:16:10PM -0400, Jon Lido wrote: > Well, I do have a P4, and had built everything with -march=3Dpentium4. > However, rebuilding the kernel and modules with -march=3Dpentium3 > produces the same results. >=20 > Incidentally, my audio hardware is: > pcm0: <Intel 82801CA (ICH3)> port 0xdc80-0xdcbf,0xd800-0xd8ff irq 11 at d= evice=20 > 31.5 on pci0 > pcm0: <Cirrus Logic CS4205 AC97 Codec> >=20 > (Dell Inspiron 8200 laptop) >=20 > -Jon >=20 > 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=3Dp4'' (which adds -march=3Dpentium4 to the > > compiler). When I went down to ``CPUTYPE=3Dp3'' everything works fine. > > Wether this is a bug in the math library or with gcc (more likely?) I > > don't know. --=20 Morten Rodal --mxv5cy4qt+RJ9ypb Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (FreeBSD) iD8DBQE+ylgGbWe1Cy11WVsRAnbbAKCcrUXsQFeLL3b1Ntv5FvBziy0EOwCgyPdp Mlvb/fsmP++sVU6Y4jdufhE= =LP7a -----END PGP SIGNATURE----- --mxv5cy4qt+RJ9ypb--
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