Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932291Ab1FJNz7 (ORCPT ); Fri, 10 Jun 2011 09:55:59 -0400 Received: from mx1.redhat.com ([209.132.183.28]:27215 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932132Ab1FJNz6 (ORCPT ); Fri, 10 Jun 2011 09:55:58 -0400 Message-ID: <4DF22245.20008@redhat.com> Date: Fri, 10 Jun 2011 15:55:17 +0200 From: Igor Mammedov 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 MIME-Version: 1.0 To: Tim Deegan CC: Stefano@phlegethon.org, Paul Menage , xen-devel@lists.xensource.com, Keir Fraser , Stabellini , "containers@lists.linux-foundation.org" , Li Zefan , "linux-kernel@vger.kernel.org" , Michal Hocko , "linux-mm@kvack.org" , Keir Fraser , "akpm@linux-foundation.org" , "balbir@linux.vnet.ibm.com" , KAMEZAWA@phlegethon.org, Hiroyuki , Hiroyuki Kamezawa Subject: Re: [Xen-devel] Possible shadow bug References: <4DE8D50F.1090406@redhat.com> <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> In-Reply-To: <20110610101011.GH5098@whitby.uk.xensource.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1184 Lines: 29 On 06/10/2011 12:10 PM, Tim Deegan wrote: > At 11:01 +0100 on 10 Jun (1307703699), Tim Deegan wrote: >> Actually, looking at the disassembly you posted, it looks more like it >> might be an emulator bug in Xen; if Xen finds itself emulating the IMUL >> instruction and either gets the logic wrong or does the memory access >> wrong, it could cause that failure. And one reason that Xen emulates >> instructions is if the memory operand is on a pagetable that's shadowed >> (which might be a page that was recently a pagetable). >> >> 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 > > Tim. > Tim, Thank you very much! We were missing that cs and it solved problem. -- Thanks, Igor -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/