Re: [Xen-devel] Possible shadow bug

From: Tim Deegan
Date: Fri Jun 10 2011 - 08:40:56 EST


At 14:48 +0300 on 10 Jun (1307717301), Pasi K?rkk?inen wrote:
> On Fri, Jun 10, 2011 at 11:10:11AM +0100, Tim Deegan wrote:
> > At 11:01 +0100 on 10 Jun (1307703699), Tim Deegan wrote:
> > > ISTR that even though the RHEL xen reports a 3.0.x version it has quite
> > > a lot of backports in it. Does it have this patch?
> > > http://hg.uk.xensource.com/xen-3.1-testing.hg/rev/e8fca4c42d05
> >
> > Oops, that URL doesn't work; I meant this:
> > http://xenbits.xen.org/xen-3.1-testing.hg/rev/e8fca4c42d05
> >
>
> RHEL5 Xen (hypervisor) reports version as 3.1.2-xyz..

Based on a quick scrobble through the CentOS 5.6 SRPMs it looks like a
3.1.0 hypervisor with a bunch of extra patches, but not this one. This
is very likely the cause of the crash in mem_cgroup_create(), and
probably the corruptions too. That would explain why they didn't happen
on a 4.0.x SLES11 Xen, but not really why the original patch in this
thread made it go away.

Cheers,

Tim.

--
Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Principal Software Engineer, Xen Platform Team
Citrix Systems UK Ltd. (Company #02937203, SL9 0BG)
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