From mboxrd@z Thu Jan 1 00:00:00 1970 From: Juergen Gross Subject: Re: ACPI-Tables corrupted? Date: Thu, 29 Jul 2010 08:48:04 +0200 Message-ID: <4C512424.6090402@ts.fujitsu.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Keir Fraser Cc: "xen-devel@lists.xensource.com" , Konrad Rzeszutek Wilk List-Id: xen-devel@lists.xenproject.org On 07/29/2010 08:39 AM, Keir Fraser wrote: > On 29/07/2010 07:19, "Juergen Gross" wrote: > >>> What is the crash? And do you see any indiciation that x2APIC is turned >>> on? Do provide a serial log please. >> >> Log is attached. >> >> I did some more testing. The problem occurred on a Nehalem-EX system. I tried >> the same on a Nehalem-EP system and all was okay. I suspect some further >> problems in the ACPI tables of the EX system now. I'm not too familiar with >> ACPI tables. Anything I can do for further analysis? > > Okay I think now that the crash is legitimate. The easy fix is that we > should reinstate the DMAR before kexec'ing the crash kernel. I'll look into > doing a patch to the hypervisor later today. Thanks! BTW: Do you understand why the EP system has no problems with the patched DMAR entry? Juergen -- Juergen Gross Principal Developer Operating Systems TSP ES&S SWE OS6 Telephone: +49 (0) 89 3222 2967 Fujitsu Technology Solutions e-mail: juergen.gross@ts.fujitsu.com Domagkstr. 28 Internet: ts.fujitsu.com D-80807 Muenchen Company details: ts.fujitsu.com/imprint.html