From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:39197) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1URrxE-0006dk-BW for qemu-devel@nongnu.org; Mon, 15 Apr 2013 18:32:53 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1URrxC-000696-Gd for qemu-devel@nongnu.org; Mon, 15 Apr 2013 18:32:52 -0400 Received: from hall.aurel32.net ([2001:470:1f15:c4f::1]:53149) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1URrxC-00068e-9T for qemu-devel@nongnu.org; Mon, 15 Apr 2013 18:32:50 -0400 Date: Tue, 16 Apr 2013 00:32:47 +0200 From: Aurelien Jarno Message-ID: <20130415223246.GA5000@ohm.aurel32.net> References: <20130415085312.GA14188@redhat.com> <20130415091842.GA15641@redhat.com> <516C1697.1070801@redhat.com> <516C280E.8070102@redhat.com> <20130415213636.GB26350@redhat.com> <20130415220310.GH22106@hall.aurel32.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20130415220310.GH22106@hall.aurel32.net> Subject: Re: [Qemu-devel] unable to boot systemrescuecd with tcg only? List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Michael S. Tsirkin" Cc: Paolo Bonzini , qemu-devel@nongnu.org, Richard Henderson On Tue, Apr 16, 2013 at 12:03:10AM +0200, Aurelien Jarno wrote: > On Tue, Apr 16, 2013 at 12:36:36AM +0300, Michael S. Tsirkin wrote: > > On Mon, Apr 15, 2013 at 06:17:18PM +0200, Paolo Bonzini wrote: > > > Il 15/04/2013 17:02, Paolo Bonzini ha scritto: > > > > Il 15/04/2013 11:18, Michael S. Tsirkin ha scritto: > > > >> On Mon, Apr 15, 2013 at 11:53:12AM +0300, Michael S. Tsirkin wrote: > > > >>> Get system rescue CD version 2.8.0 here: > > > >>> http://www.sysresccd.org/Sysresccd-versions > > > >>> > > > >>> Verify md5 checksum: 450305b2c3ac12d5c97ff849ca178586 > > > >> > > > >> Note: tried version 2.1.0, that boots fine. > > > >> Tried version 3.5.0, that hangs on boot > > > >> (or maybe it's just too slow? gave up after 15 min). > > > >> In all cases -enable-kvm makes it work fine. > > > > > > > > Reproduced it too (by chance :)) with Fedora 16. Trying to bisect now. > > > > > > Hmm, no, must be a different thing. It was in a "seemingly innocuous" > > > patch at the top of my tree, and system rescue CD works for me. > > > > 2.0.8? > > > > Hmm maybe the issue is I'm on a 32 bit host ... > > > > It's an important information. With it I am able to reproduce the issue. > I have bisected the issue to: | f437d0a3c24e471a855da33a086fe529e09a06af is the first bad commit | commit f437d0a3c24e471a855da33a086fe529e09a06af | Author: Richard Henderson | Date: Tue Feb 19 21:06:31 2013 -0800 | | target-i386: Use movcond to implement shiftd. | | With this being all straight-line code, it can get deleted | when the cc variables die. | | Signed-off-by: Richard Henderson -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurelien@aurel32.net http://www.aurel32.net