From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from hapkido.dreamhost.com ([66.33.216.122] ident=postfix) by linuxtogo.org with esmtp (Exim 4.72) (envelope-from ) id 1Px1f6-0007oK-3t for openembedded-devel@lists.openembedded.org; Tue, 08 Mar 2011 19:29:37 +0100 Received: from homiemail-a19.g.dreamhost.com (caiajhbdcbhh.dreamhost.com [208.97.132.177]) by hapkido.dreamhost.com (Postfix) with ESMTP id 37CA417A27E for ; Tue, 8 Mar 2011 10:27:50 -0800 (PST) Received: from homiemail-a19.g.dreamhost.com (localhost [127.0.0.1]) by homiemail-a19.g.dreamhost.com (Postfix) with ESMTP id 88D2E604069 for ; Tue, 8 Mar 2011 10:27:49 -0800 (PST) DomainKey-Signature: a=rsa-sha1; c=nofws; d=gumstix.com; h=message-id:date :from:mime-version:to:subject:references:in-reply-to :content-type:content-transfer-encoding; q=dns; s=gumstix.com; b=MXTl0yg7NQaDLjxpM00LtEGbuoOS5TrAGlnpNoZV8rPOPKjTsJSLDT9q8xvzK f2RZrJ3gra/US/3R/977MTK6at6+38Q27KjXVdJMloVh6DNYoNlGZBM7UhJoNwL1 /4fFDSLv/2nr040QBtaPxdOMjEXQXcHTHKPAByi8h9GoG4= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=gumstix.com; h=message-id :date:from:mime-version:to:subject:references:in-reply-to :content-type:content-transfer-encoding; s=gumstix.com; bh=D143a 5COWFP1trJ1emLbjZlsYzA=; b=da/s8dUDdLexMKtanPnC23IPpBYOeByp6Lw+z m5o8gq4E3+f9S4Jh1Db9VvK+LJlrUaQqDO23X9jHghveM1dfDcUNyODJzIJ5vRXu L4llFGEO1LYYdXd2dngNcM+9mh+xUu8lOg1+CL7aItxujNoRxUxVPnZa6l9g2vUl DelHsA= Received: from [10.0.1.35] (s64-180-61-141.bc.hsia.telus.net [64.180.61.141]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: neil@gumstix.com) by homiemail-a19.g.dreamhost.com (Postfix) with ESMTPSA id 62156604061 for ; Tue, 8 Mar 2011 10:27:49 -0800 (PST) Message-ID: <4D76751A.8010301@gumstix.com> Date: Tue, 08 Mar 2011 10:27:38 -0800 From: Neil MacMunn User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.14) Gecko/20110223 Thunderbird/3.1.8 MIME-Version: 1.0 To: openembedded-devel@lists.openembedded.org References: <4D714447.1000104@gumstix.com> <1299270390.3930.1.camel@lenovo.internal.reciva.com> In-Reply-To: <1299270390.3930.1.camel@lenovo.internal.reciva.com> Subject: Re: Floating point exception in Xorg X-BeenThere: openembedded-devel@lists.openembedded.org X-Mailman-Version: 2.1.11 Precedence: list Reply-To: openembedded-devel@lists.openembedded.org List-Id: Using the OpenEmbedded metadata to build Distributions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Mar 2011 18:29:37 -0000 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 11-03-04 12:26 PM, Phil Blundell wrote: > On Fri, 2011-03-04 at 11:57 -0800, Neil MacMunn wrote: >>> #1 0x40661fbc in __div0 () >>> at /home/neil/overo-oe/tmp-unstable/work/armv7a-angstrom-linux-gnueabi/gcc-cross-4.3.3-r23.2/gcc-4.3.3/libgcc/../gcc/config/arm/lib1funcs.asm:1079 >>> #2 0x40661f90 in __udivsi3 () >>> at /home/neil/overo-oe/tmp-unstable/work/armv7a-angstrom-linux-gnueabi/gcc-cross-4.3.3-r23.2/gcc-4.3.3/libgcc/../gcc/config/arm/lib1funcs.asm:834 >>> #3 0x4065edc4 in OMAPFBOutputGetModes (output=) >>> at omapfb-output.c:128 >>> #4 0x000f8c60 in xf86ProbeOutputModes (scrn=0x90a990, maxX=2048, maxY=2048) >>> at xf86Crtc.c:1575 > > That's a division by zero in what looks like the mode selection code. > At a guess, some parameter which the server is relying on to calculate > the video timings is not being set correctly by the kernel. You'd need > to inspect the source for OMAPFBOutputGetModes() to figure out what's > up, though. > > p. > Right. This line is the problem. > mode->Clock = PICOS2KHZ(ofb->state_info.pixclock); because > #define PICOS2KHZ(a) (1000000000UL/(a)) I didn't have any luck figuring out where pixclock was supposed to be set so I just reverted xf86-video-omapfb_git.bb and my LCDs work again. > git checkout 3b039e5c54265c5e1e254736687ad1cefed8f534 -- xf86-video-omapfb_git.bb Thanks for the help. -- Neil