From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58875) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X8CXP-0007kD-RG for qemu-devel@nongnu.org; Fri, 18 Jul 2014 14:05:51 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1X8CXJ-0000oK-L8 for qemu-devel@nongnu.org; Fri, 18 Jul 2014 14:05:43 -0400 Received: from mx1.redhat.com ([209.132.183.28]:14176) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X8CXJ-0000o8-4P for qemu-devel@nongnu.org; Fri, 18 Jul 2014 14:05:37 -0400 Date: Fri, 18 Jul 2014 19:05:28 +0100 From: "Dr. David Alan Gilbert" Message-ID: <20140718180527.GJ10517@work-vm> References: <20140718173848.GF10517@work-vm> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140718173848.GF10517@work-vm> Subject: Re: [Qemu-devel] Migration breakage from fe680d0 'exec: Limit translation limiting in address_space_translate to xen' List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: aik@ozlabs.ru, pbonzini@redhat.com Cc: amit.shah@redhat.com, kraxel@redhat.com, m.gibula@beyond.pl, qemu-devel@nongnu.org, quintela@redhat.com Hi Alexey, I've got a migration breakage that bisects back to fe680d0 'exec: Limit translation limiting in address_space_translate to xen' I'm told this is unlikely, but it seems to be reliably reproducable and if I comment out the 'xen_enabled() &&' it all works fine. Test system: x86-64 i7-3520M fedora 20 Test case: It's a script from Kraxel that boots a guest with a live CD and bounces it back and forward with a running VNC. (Annoyingly every other test I've got doesn't seem to hit this; virt-test, google stress app test - all happy). Failure: I'm seeing squashfs errors and then random app failures. The command line is: try/bin/qemu-system-x86_64 -m 2G -smp 2 -name migrate-loop -nodefaults -enable-kvm -boot menu=on -vga std -vnc localhost:6448 -drive if=none,id=live,readonly,media=cdrom,file=/home/vmimages/Fedora-Live-Desktop-x86_64-20-1.iso -drive if=none,id=disk,format=raw,cache=none,aio=native,file=/home/dgilbert/tmp/kraxel/migrate-loop.img -chardev socket,id=mon,path=/tmp/migrate-loop-12326/mon-12348-23459,server,nowait -mon chardev=mon -serial stdio -net user,bootfile=http://192.168.2.14/tftpboot/pxelinux.0 -net nic,model=virtio -device ide-hd,bus=ide.0,drive=disk,bootindex=1 -device ide-cd,bus=ide.1,drive=live,bootindex=2 -device AC97 -incoming tcp:0:23459 (Resend, I forgot to cc the list) Dave (who is on holiday next week) -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK