From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:56479) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QpCXQ-0007FQ-3T for qemu-devel@nongnu.org; Fri, 05 Aug 2011 01:01:36 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QpCXP-0001vK-0k for qemu-devel@nongnu.org; Fri, 05 Aug 2011 01:01:36 -0400 Received: from v220110690675601.yourvserver.net ([78.47.199.172]:53950) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QpCXO-0001uu-SL for qemu-devel@nongnu.org; Fri, 05 Aug 2011 01:01:34 -0400 Message-ID: <4E3B7929.7070004@mail.berlios.de> Date: Fri, 05 Aug 2011 07:01:29 +0200 From: Stefan Weil MIME-Version: 1.0 References: <20110805034532.GB6016@yookeroo.fritz.box> In-Reply-To: <20110805034532.GB6016@yookeroo.fritz.box> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] TCG optimizations broke ppc64 target List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: david@gibson.dropbear.id.au, Blue Swirl Cc: agraf@suse.de, qemu-devel@nongnu.org Am 05.08.2011 05:45, schrieb David Gibson: > Commit 22613af4a6d9602001e6d0e7b6d98aa40aa018dc 'Add copy and constant > propagation' seems to break TCG emulation of the ppc64 target, at > least as we use it on the pseries machine. > > After this patch, attempting to boot a kernel results in an abort() a > short way into the boot: > > /home/dwg/ibm/kvm/qemu/tcg/tcg.c:1646: tcg fatal error > Aborted > > I'm not very familiar with TCG - can anyone give me some pointers on > how to get the information necessary to debug this? The same bug occurs with x86_64-softmmu, mips64el-softmmu and mips64-softmmu targets. See this discussion thread for more information: http://lists.nongnu.org/archive/html/qemu-devel/2011-08/msg00758.html