Date: 20 May 2003 18:19:56 +0000 From: Dofri Jonsson <imp@hell.is> To: Jon Lido <jlido@goof.com> Cc: freebsd-current@freebsd.org Subject: Re: gcc/libm floating-point bug? Message-ID: <1053454797.22618.0.camel@dofri.tern.is> In-Reply-To: <200305201025.30296.jlido@goof.com> References: <200305201025.30296.jlido@goof.com>
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See PR bin/43299: march=pentium4 miscompiles msun/src/e_pow.c for more details: http://www.freebsd.org/cgi/query-pr.cgi?pr=43299 On Tue, 2003-05-20 at 14:25, Jon Lido wrote: > I've been running 5-CURRENT on my laptop for about a week now. I believe I > may have found a bug in FreeBSD's gcc floating-point code generation, or > perhaps more likely, in the math library. > > Like most users, I don't do much with floating point, so it took me a while to > narrow this one down. 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. Ogg Vorbis files don't play at all, and simply crash artsd and > xmms. I would have dismissed this as an audio problem, but I am able to play > wav and shn audio (which uses integer math for decompression, I believe) > fine. Additionally, I can decode and play MP3s fine with mpg321, which uses > an integer decoder. > > I know my floating point hardware is fine, since I used to run xmms and artsd > fine under Linux before I switched the machine to FreeBSD. > > I'd appreciate any help with further isolating and reproducing the bug. Has > anyone else experienced this problem? > > -Jon > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"
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