From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thorolf Godawa Subject: Re: Live Migration Across AMD and Intel Date: Tue, 02 Dec 2008 11:53:46 +0100 Message-ID: <493513BA.90101@godawa.de> References: <20081202090504.GF14500@chub.in> <20081202100726.GD26312@chub.in> Mime-Version: 1.0 Content-Type: text/plain; charset=KOI8-R Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20081202100726.GD26312@chub.in> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel List-Id: xen-devel@lists.xenproject.org Hi, > As far as I understand now it works in some particular (and rare) > situations but it is not true in general. mostly if you have one old and one modern CPU it works on one direction. During some prototyping a while ago I was always able to migrate from an old Intel P3-system to an "modern" AMD Athlon-system, while the way back most times result in a crash of the VM. But I had better success with Intel P4 and Intel Xeon CPUs (both with first generation of HVM-support), where I could do migration on both directions without any errors! -- Chau y hasta luego, Thorolf