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] Re: FC15: 32-bit PV guest crash on restore on x64_86 hos

To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] Re: FC15: 32-bit PV guest crash on restore on x64_86 host
From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Date: Thu, 5 May 2011 14:32:10 +0100
Cc: Igor Mammedov <imammedo@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Thu, 05 May 2011 06:34:10 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <20110504211320.GA6769@xxxxxxxxxxxx>
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>
References: <4DC1AFC9.2070407@xxxxxxxxxx> <20110504201951.GB2117@xxxxxxxxxxxx> <4DC1BF08.50903@xxxxxxxxxx> <20110504211320.GA6769@xxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Alpine 2.00 (DEB 1167 2008-08-23)
On Wed, 4 May 2011, Konrad Rzeszutek Wilk wrote:
> On Wed, May 04, 2011 at 11:03:04PM +0200, Igor Mammedov wrote:
> > On 05/04/2011 10:19 PM, Konrad Rzeszutek Wilk wrote:
> > >On Wed, May 04, 2011 at 09:58:01PM +0200, Igor Mammedov wrote:
> > >>On restore 32bit PV guest crashes on x64_86 host, while  x64_86 PV guest
> > >>works as expected.
> > >>
> > >>Bisecting of upstream kernel shows following offending commit:
> > >Can you try the patches in devel/p2m-e820-pci.v2
> > >(git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git)
> > >
> >
> > devel/p2m-e820-pci.v2 branch isn't boots.
> >
> > Could you point out any specific patches?
> a1fcd6e xen:p2m: Create entries in the P2M_MFN trees's to track 1-1 mappings
> 39fc738 xen/setup: Ignore E820_UNUSABLE when setting 1-1 mappings.

Also the following might help:

commit 706cc9d2a4cb9b03217e15b0bb3d117f4d5109ee
Author: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Date:   Wed Feb 2 18:32:59 2011 +0000

    xen/m2p: Check whether the MFN has IDENTITY_FRAME bit set..

> But the more I look at this I don't think those patches will help here at all.
> This looks like a completle new failure. Let me try it on my box tomorrow
> and see how it works out.

I tried to repro the issue but I couldn't.

Xen-devel mailing list