From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MOu3m-0004wJ-TQ for qemu-devel@nongnu.org; Thu, 09 Jul 2009 09:53:15 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MOu3h-0004sA-VN for qemu-devel@nongnu.org; Thu, 09 Jul 2009 09:53:14 -0400 Received: from [199.232.76.173] (port=36583 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MOu3h-0004rx-4M for qemu-devel@nongnu.org; Thu, 09 Jul 2009 09:53:09 -0400 Received: from mail-qy0-f174.google.com ([209.85.221.174]:60388) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1MOu3g-0001xZ-Rr for qemu-devel@nongnu.org; Thu, 09 Jul 2009 09:53:08 -0400 Received: by qyk4 with SMTP id 4so95146qyk.4 for ; Thu, 09 Jul 2009 06:53:08 -0700 (PDT) Message-ID: <4A55F641.6000701@codemonkey.ws> Date: Thu, 09 Jul 2009 08:53:05 -0500 From: Anthony Liguori MIME-Version: 1.0 Subject: Re: [Qemu-devel] [PATCH 2/3] move vm stop/start to migrate_set_state References: <1247140059-5034-1-git-send-email-pbonzini@redhat.com> <1247140059-5034-3-git-send-email-pbonzini@redhat.com> <4A55F46F.6060705@codemonkey.ws> <4A55F510.5090801@redhat.com> In-Reply-To: <4A55F510.5090801@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini Cc: qemu-devel@nongnu.org Paolo Bonzini wrote: > On 07/09/2009 03:45 PM, Anthony Liguori wrote: >> How does the disk become full during the final stage? The guest isn't >> running. > > The host disk can become full and cause a "migrate exec" to fail. Or > for network migration migration, you could have the connection drop > exactly during the final stage. In this case, the VM would be > unconditionally restarted. Because migration failed. Is that not the desired behavior? It seems like it is to me. If I try to do a live migration, it should either succeed and my guest experiences minimal downtime or it should fail and my guest should experience minimal downtime. Regards, Anthony Liguori > Paolo