From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753014AbXCPHbb (ORCPT ); Fri, 16 Mar 2007 03:31:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753036AbXCPHbb (ORCPT ); Fri, 16 Mar 2007 03:31:31 -0400 Received: from 207.47.60.147.static.nextweb.net ([207.47.60.147]:31823 "EHLO rpc.xensource.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753010AbXCPHba (ORCPT ); Fri, 16 Mar 2007 03:31:30 -0400 Subject: Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 dumps From: Ian Campbell To: vgoyal@in.ibm.com Cc: Horms , hbabu@us.ibm.com, fastboot@lists.osdl.org, linux-kernel@vger.kernel.org, Magnus Damm In-Reply-To: <20070316024239.GB10515@in.ibm.com> References: <1173891609.8591.41.camel@localhost.localdomain> <20070315014635.GC28396@verge.net.au> <20070315045536.GA6766@in.ibm.com> <20070315050754.GB22329@verge.net.au> <20070315054726.GC6766@in.ibm.com> <1173961378.8591.63.camel@localhost.localdomain> <20070315132616.GH6766@in.ibm.com> <20070315234807.GB10861@verge.net.au> <20070316024239.GB10515@in.ibm.com> Content-Type: text/plain Date: Fri, 16 Mar 2007 07:31:26 +0000 Message-Id: <1174030286.28658.39.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.6.3 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 16 Mar 2007 07:31:30.0112 (UTC) FILETIME=[1D388C00:01C7679D] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2007-03-16 at 08:12 +0530, Vivek Goyal wrote: > I did not investigate deeper but I got a basic question. How will kexec > know that underlying 32bit machine supports 64bit extensions or not? It looks like /proc/cpuinfo flags contains "lm" (which is long mode, right?) even if the machine is running 32 bit mode. Ian.