WARNING - OLD ARCHIVES

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/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

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

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] Re: FC15: 32-bit PV guest crash on restore on x64_86 host
From: Igor Mammedov <imammedo@xxxxxxxxxx>
Date: Fri, 06 May 2011 19:41:20 +0200
Delivery-date: Fri, 06 May 2011 10:41:55 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <20110506171214.GA9499@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> <20110505212804.GA9501@xxxxxxxxxxxx> <4DC41EDA.6020908@xxxxxxxxxx> <20110506171214.GA9499@xxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110419 Red Hat/3.1.10-1.el6_0 Lightning/1.0b2 Thunderbird/3.1.10
On 05/06/2011 07:12 PM, Konrad Rzeszutek Wilk wrote:
On Fri, May 06, 2011 at 06:16:26PM +0200, Igor Mammedov wrote:
On 05/05/2011 11:28 PM, Konrad Rzeszutek Wilk wrote:
On Wed, May 04, 2011 at 05:13:20PM -0400, 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.
I tried this with 2.6.39-rc6 and could not reproduce this. Does it work
for you with 2.6.39-rc6? Or is it _only_ failing with 2.6.38?


It's failing with 2.6.39-rc6 as well. And 2.6.38 with suggested
patches as well.

But since I do like fast builds, I've used fast PC with 2 NUMA nodes
at least and
Hmm, the guest is a single CPU one, so perhaps you are hitting a hypervisor
issue. What happens if you turn NUMA off on the hypervisor line?

Looks like removing numa=on from hypervisor init line helped, guest
stays alive after restore.

it turns out  that the bug is not reproducible on PC with only one
cpu (HPZ800
1 socket config). So you can reproduce it if you try a PC with at
least 2 cpus
nodes.
Ok, I've an old IBM x366 that has four sockets - that should do it -
but will have to wait till next week when I am back from traveling.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel