From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754796Ab1GVP0w (ORCPT ); Fri, 22 Jul 2011 11:26:52 -0400 Received: from mtagate1.uk.ibm.com ([194.196.100.161]:56814 "EHLO mtagate1.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754524Ab1GVP0u (ORCPT ); Fri, 22 Jul 2011 11:26:50 -0400 Subject: Re: [patch 0/9] kdump: Patch series for s390 support From: Michael Holzheu Reply-To: holzheu@linux.vnet.ibm.com To: Vivek Goyal Cc: Martin Schwidefsky , ebiederm@xmission.com, hbabu@us.ibm.com, mahesh@linux.vnet.ibm.com, oomichi@mxs.nes.nec.co.jp, horms@verge.net.au, heiko.carstens@de.ibm.com, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org In-Reply-To: <20110718152532.GF31986@redhat.com> References: <20110714091800.720da848@mschwide> <20110714175532.GE6672@redhat.com> <20110714180528.GF6672@redhat.com> <1310739717.10789.31.camel@br98xy6r> <20110715143820.GG3428@redhat.com> <1310744603.10789.79.camel@br98xy6r> <20110718123140.GB31986@redhat.com> <1310997641.4427.10.camel@br98xy6r> <20110718141943.GE31986@redhat.com> <1311000253.4427.23.camel@br98xy6r> <20110718152532.GF31986@redhat.com> Content-Type: text/plain; charset="UTF-8" Organization: IBM Date: Fri, 22 Jul 2011 17:26:32 +0200 Message-ID: <1311348392.5772.56.camel@br98xy6r> Mime-Version: 1.0 X-Mailer: Evolution 2.32.2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello Vivek, Still thinking how we best get elfcorehdr size... On Mon, 2011-07-18 at 11:25 -0400, Vivek Goyal wrote: > On Mon, Jul 18, 2011 at 04:44:13PM +0200, Michael Holzheu wrote: > You could do that but I think a more generic parameter will make more > sense. > > - Either something along the lines of memmap= > - Or excludemem=x@y > - Or modify memory map in s390 specific bootloading protocol block etc. Wouldn't it be most natural to pass the length along with the address of the ELF core header? What about extending the kernel elfcorehdr kernel parameter and adding optional size: elfcorehdr=[KMG],[KMG] Michael