From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51812) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VF49U-0006A2-4A for qemu-devel@nongnu.org; Thu, 29 Aug 2013 11:28:57 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VF49M-0004m0-8Q for qemu-devel@nongnu.org; Thu, 29 Aug 2013 11:28:52 -0400 Received: from mail-gh0-x233.google.com ([2607:f8b0:4002:c05::233]:61363) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VF49M-0004lk-4R for qemu-devel@nongnu.org; Thu, 29 Aug 2013 11:28:44 -0400 Received: by mail-gh0-f179.google.com with SMTP id f16so122745ghb.38 for ; Thu, 29 Aug 2013 08:28:43 -0700 (PDT) Sender: Richard Henderson Message-ID: <521F68A6.2010800@twiddle.net> Date: Thu, 29 Aug 2013 08:28:38 -0700 From: Richard Henderson MIME-Version: 1.0 References: <20130828223335.26000.79391.malonedeb@soybean.canonical.com> <20130829112551.20693.65241.malone@chaenomeles.canonical.com> In-Reply-To: <20130829112551.20693.65241.malone@chaenomeles.canonical.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [Bug 1218098] Re: qemu-system-ppc64 segfaults in helper_ldl_mmu List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Bug 1218098 <1218098@bugs.launchpad.net> Cc: qemu-devel@nongnu.org On 08/29/2013 04:25 AM, agraf wrote: > I just bisected the same thing down to this commit. It only breaks on > one of my x86 machines though. Namely one with > > gcc (SUSE Linux) 4.7.2 20130108 [gcc-4_7-branch revision 195012] Yes, it requires a compiler and compile options resulting in the right sequence of tail calls. Patch and analysis here: http://patchwork.ozlabs.org/patch/270872/ r~