From owner-freebsd-current@FreeBSD.ORG Tue May 20 11:21:13 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EA09237B401 for ; Tue, 20 May 2003 11:21:13 -0700 (PDT) Received: from copper.plainold.net (copper.plainold.net [213.167.142.184]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9659C43F3F for ; Tue, 20 May 2003 11:21:12 -0700 (PDT) (envelope-from imp@hell.is) X-AuthUser: imp@hell.is Received: from dofri (213.167.142.180) by copper.plainold.net with [XMail 1.11 (Linux/Ix86) ESMTP Server] id for from ; Tue, 20 May 2003 18:02:20 -0000 From: Dofri Jonsson To: Jon Lido In-Reply-To: <200305201025.30296.jlido@goof.com> References: <200305201025.30296.jlido@goof.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.8-3mdk Date: 20 May 2003 18:19:56 +0000 Message-Id: <1053454797.22618.0.camel@dofri.tern.is> Mime-Version: 1.0 cc: freebsd-current@freebsd.org Subject: Re: gcc/libm floating-point bug? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 May 2003 18:21:14 -0000 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"