This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


Re: [Xen-devel] Error restoring DomU when using GPLPV

To: James Harper <james.harper@xxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Error restoring DomU when using GPLPV
From: ANNIE LI <annie.li@xxxxxxxxxx>
Date: Thu, 20 Aug 2009 19:55:31 +0800
Cc: Joshua West <jwest@xxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Delivery-date: Thu, 20 Aug 2009 05:25:18 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <4A8D1FCE.20200@xxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Organization: Oracle Corporation
References: <4A8D0694.2010803@xxxxxxxxxx> <C6B2C793.126F8%keir.fraser@xxxxxxxxxxxxx> <AEC6C66638C05B468B556EA548C1A77D0177CD12@trantor> <4A8D1FCE.20200@xxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Thunderbird (Windows/20090605)
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.


Xen-devel mailing list

<Prev in Thread] Current Thread [Next in Thread>