From mboxrd@z Thu Jan 1 00:00:00 1970 From: ANNIE LI Subject: Re: Error restoring DomU when using GPLPV Date: Thu, 20 Aug 2009 19:55:31 +0800 Message-ID: <4A8D39B3.4010606@oracle.com> References: <4A8D0694.2010803@oracle.com> <4A8D1FCE.20200@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4A8D1FCE.20200@oracle.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: James Harper Cc: Joshua West , xen-devel@lists.xensource.com, Keir Fraser List-Id: xen-devel@lists.xenproject.org Hi > Just finished test, live migration works well on winpv domu after > ballooning down those pages when pv driver first load. After more test, i find there are some problem with this method: ballooning down those pages when pv driver first load. If i balloon down those pages when driver first load, save/restore can only work only once, and the migration can not work. It seems that a restored vm lost those pages ballooned down. For migration, destination does not have those pages which ballooned down on source. But if i balloon down those pages every time(not driver first load), i tested save/restore/migration for several times, and all work fine. But the domu will waste lots of memory in this situation. I will do more test about this and update here. Thanks Annie.