From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Campbell <Ian.Campbell@citrix.com>
Subject: Re: pv guests die after failed migration
Date: Sat, 15 Oct 2011 16:12:49 +0100
Message-ID: <1318691569.11016.42.camel@dagon.hellion.org.uk>
References: <4E786015.80603@leuphana.de>
	<1316546879.5182.26.camel@dagon.hellion.org.uk>
	<4E7C37BD.2000706@leuphana.de>
	<1316764045.23371.100.camel@zakaz.uk.xensource.com>
	<4E7C4E44.70508@leuphana.de>
	<1317225159.26672.87.camel@zakaz.uk.xensource.com>
	<4E98DF51.9070907@leuphana.de>
	<1318657499.11016.12.camel@dagon.hellion.org.uk>
	<4E996206.4050500@leuphana.de>
Mime-Version: 1.0
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: 7bit
Return-path: <xen-devel-bounces@lists.xensource.com>
In-Reply-To: <4E996206.4050500@leuphana.de>
List-Unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xensource.com>
List-Help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-Subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
Sender: xen-devel-bounces@lists.xensource.com
Errors-To: xen-devel-bounces@lists.xensource.com
To: Andreas Olsowski <andreas.olsowski@leuphana.de>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
List-Id: xen-devel@lists.xenproject.org

On Sat, 2011-10-15 at 11:35 +0100, Andreas Olsowski wrote:
> On 10/15/2011 07:44 AM, Ian Campbell wrote:
> > On Sat, 2011-10-15 at 02:18 +0100, Andreas Olsowski wrote:
> >> It seems this still has not made it into 4.1-testing.
> >
> > I'm afraid I've not had time to "figure out how to automatically select
> > which guests are capable of a cooperative resume and which are not." so
> > it hasn't been fixed in xen-unstable either AFAIK.
> >
> Wouldnt just assuming all of them do fix a bigger percentage of systems 
> than leaving it the way it is?

I don't know -- that's really the point.

> > I'm also still interested in confirmation to the question I asked in the
> > mail you just replied to.
> >
> 
> Oh, i thought i allready did.
> 
>  > Are you saying that you don't see the "failed for domain %u" message
>  > immediately after the xc_domain_resume call?
>  >
>  > +    if (xc_domain_resume(ctx->xch, domid, 1)) {
>  >            LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR,
>  >                            "xc_domain_resume failed for domain %u",
>  >                            domid);
>  >
>  > That would be pretty odd...
> 
> Yes that is what i am saying:

Oh wait, that's right -- as far as the toolstack is concerned the resume
was successful -- the subsequent crash is within the guest.

Ian.

> 
> root@memoryana:/var/log/xen# cat xl-testmig.log
> Waiting for domain testmig (domid 2) to die [pid 13349]
> Domain 2 is dead
> Done. Exiting now
>