From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Kxk3V-0002If-MC for qemu-devel@nongnu.org; Wed, 05 Nov 2008 10:12:25 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Kxk3T-0002Hd-Tq for qemu-devel@nongnu.org; Wed, 05 Nov 2008 10:12:25 -0500 Received: from [199.232.76.173] (port=52554 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Kxk3T-0002HX-Qd for qemu-devel@nongnu.org; Wed, 05 Nov 2008 10:12:23 -0500 Received: from nf-out-0910.google.com ([64.233.182.189]:43465) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1Kxk3T-0006Vw-H7 for qemu-devel@nongnu.org; Wed, 05 Nov 2008 10:12:23 -0500 Received: by nf-out-0910.google.com with SMTP id b2so31486nfb.12 for ; Wed, 05 Nov 2008 07:12:22 -0800 (PST) Message-ID: <4911B7D2.2050304@codemonkey.ws> Date: Wed, 05 Nov 2008 09:12:18 -0600 From: Anthony Liguori MIME-Version: 1.0 Subject: Re: [Qemu-devel] Live migration - exec: support to be reintroduced? References: <49113157.3090101@codemonkey.ws> <4911514C.1070300@redhat.com> <4911A934.9040007@codemonkey.ws> <20081105141901.GL25523@redhat.com> In-Reply-To: <20081105141901.GL25523@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Daniel P. Berrange" , qemu-devel@nongnu.org Daniel P. Berrange wrote: > This isn't for snapshotting, so checkpointing of storage is unneccessary. > This is just straight save+restore, akin to hibernate-to-disk for a > physical machine. > This is a fundamentally broken concept. You cannot just save the guest's memory state without saving the current state of the storage. I know this exists in Xen, but no one can use it in a serious manner as it could very easily lead to data corruption. Regards, Anthony Liguori