From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tim Deegan Subject: Re: [Xen-devel] Possible shadow bug Date: Fri, 10 Jun 2011 13:40:34 +0100 Message-ID: <20110610124034.GI5098__36360.476530581$1307709787$gmane$org@whitby.uk.xensource.com> References: <4DEE26E7.2060201@redhat.com> <20110608123527.479e6991.kamezawa.hiroyu@jp.fujitsu.com> <4DF0801F.9050908@redhat.com> <20110609150133.GF5098@whitby.uk.xensource.com> <4DF0F90D.4010900@redhat.com> <20110610100139.GG5098@whitby.uk.xensource.com> <20110610101011.GH5098@whitby.uk.xensource.com> <20110610114821.GB32595@reaktio.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20110610114821.GB32595-GxtO3QLqHcLR7s880joybQ@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Pasi K?rkk?inen Cc: xen-devel-GuqFBffKawuULHF6PoxzQEEOCMrvLtNR@public.gmane.org, Keir Fraser , Stabellini , "containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org" , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Michal Hocko , "linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org" , Keir Fraser , Igor Mammedov , Paul Menage , "balbir-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org" , "akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org" , Hiroyuki Kamezawa List-Id: containers.vger.kernel.org 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 Principal Software Engineer, Xen Platform Team Citrix Systems UK Ltd. (Company #02937203, SL9 0BG)