From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754967AbZHCWNm (ORCPT ); Mon, 3 Aug 2009 18:13:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754813AbZHCWNl (ORCPT ); Mon, 3 Aug 2009 18:13:41 -0400 Received: from cssun.mathcs.emory.edu ([170.140.150.1]:52596 "EHLO cssun.mathcs.emory.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754798AbZHCWNl (ORCPT ); Mon, 3 Aug 2009 18:13:41 -0400 X-Greylist: delayed 2123 seconds by postgrey-1.27 at vger.kernel.org; Mon, 03 Aug 2009 18:13:40 EDT Message-ID: <4A77585E.6020307@mathcs.emory.edu> Date: Mon, 03 Aug 2009 17:36:30 -0400 From: Ken Mandelberg User-Agent: Thunderbird 2.0.0.6 (X11/20070820) MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: Panic with 2 quad opterons (2346) 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 I've been trying to upgrade a box that had two dual opteron, to two quad opterons (2346). The motherboard and firmware is documented as supporting this. I've tried the latest Ubuntu and Centos distributions. With 32 bit kernels, the two quad cores work fine. With 64 bit kernels, and only one quad core inserted it works fine. With both quad cores, the 64 bit kernels panic immediately. In all tests there are 4 2GB dimms , 2 in each in bank. Any thoughts? Please cc me directly on any response. Thanks!