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

[Igor Mammedov <imammedo@xxxxxxxxxx>]

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