From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from e31.co.us.ibm.com ([32.97.110.149]) by canuck.infradead.org with esmtps (Exim 4.63 #1 (Red Hat Linux)) id 1IO5XD-0005dH-Jr for kexec@lists.infradead.org; Thu, 23 Aug 2007 01:47:13 -0400 Received: from d03relay04.boulder.ibm.com (d03relay04.boulder.ibm.com [9.17.195.106]) by e31.co.us.ibm.com (8.13.8/8.13.8) with ESMTP id l7N5l3VO012865 for ; Thu, 23 Aug 2007 01:47:03 -0400 Received: from d03av01.boulder.ibm.com (d03av01.boulder.ibm.com [9.17.195.167]) by d03relay04.boulder.ibm.com (8.13.8/8.13.8/NCO v8.5) with ESMTP id l7N5l3xp142604 for ; Wed, 22 Aug 2007 23:47:03 -0600 Received: from d03av01.boulder.ibm.com (loopback [127.0.0.1]) by d03av01.boulder.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id l7N5l3sG031722 for ; Wed, 22 Aug 2007 23:47:03 -0600 Date: Thu, 23 Aug 2007 11:17:09 +0530 From: Vivek Goyal Subject: Re: [PATCH 0/3] vmcoreinfo support for dump filtering Message-ID: <20070823054709.GC365@in.ibm.com> References: <20070822210838oomichi@mail.jp.nec.com> Mime-Version: 1.0 Content-Disposition: inline In-Reply-To: <20070822210838oomichi@mail.jp.nec.com> Reply-To: vgoyal@in.ibm.com List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: kexec-bounces@lists.infradead.org Errors-To: kexec-bounces+dwmw2=infradead.org+dwmw2=infradead.org@lists.infradead.org To: Ken'ichi Ohmichi Cc: Don Zickus , Neil Horman , Dan Aloni , Bernhard Walle , kexec-ml , lkml , Andrew Morton On Wed, Aug 22, 2007 at 09:08:38PM +0900, Ken'ichi Ohmichi wrote: > > Hi Andrew, > > This patch set frees the restriction that makedumpfile users should > install a vmlinux file (including the debugging information) into > each system. > > makedumpfile command is the dump filtering feature for kdump. > It creates a small dumpfile by filtering unnecessary pages for the > analysis. To distinguish unnecessary pages, it needs a vmlinux file > including the debugging information. These days, the debugging package > becomes a huge file, and it is hard to install it into each system. > > To solve the problem, kdump developers discussed it at lkml and kexec-ml. > As the result, we reached the conclusion that necessary information > for dump filtering (called "vmcoreinfo") should be embedded into the > first kernel file and it should be accessed through /proc/vmcore > during the second kernel. > (http://www.uwsg.iu.edu/hypermail/linux/kernel/0707.0/1806.html) > > Dan Aloni created the patch set for the above implementation. > (http://www.uwsg.iu.edu/hypermail/linux/kernel/0707.1/1053.html) > > And I updated it for multi architectures and memory models. > (http://lists.infradead.org/pipermail/kexec/2007-August/000479.html) > > > PATCH SET: > [1/3] [linux] Add vmcoreinfo > The patch is for linux-2.6.22. > The patch adds the vmcoreinfo data. Its address and size are output > to /sys/kernel/vmcoreinfo. > Looks good to me. Thanks Vivek _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756763AbXHWFrT (ORCPT ); Thu, 23 Aug 2007 01:47:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751358AbXHWFrJ (ORCPT ); Thu, 23 Aug 2007 01:47:09 -0400 Received: from e34.co.us.ibm.com ([32.97.110.152]:59571 "EHLO e34.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751116AbXHWFrG (ORCPT ); Thu, 23 Aug 2007 01:47:06 -0400 Date: Thu, 23 Aug 2007 11:17:09 +0530 From: Vivek Goyal To: "Ken'ichi Ohmichi" Cc: Andrew Morton , lkml , kexec-ml , Neil Horman , Bernhard Walle , Don Zickus , Dan Aloni Subject: Re: [PATCH 0/3] vmcoreinfo support for dump filtering Message-ID: <20070823054709.GC365@in.ibm.com> Reply-To: vgoyal@in.ibm.com References: <20070822210838oomichi@mail.jp.nec.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070822210838oomichi@mail.jp.nec.com> User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 22, 2007 at 09:08:38PM +0900, Ken'ichi Ohmichi wrote: > > Hi Andrew, > > This patch set frees the restriction that makedumpfile users should > install a vmlinux file (including the debugging information) into > each system. > > makedumpfile command is the dump filtering feature for kdump. > It creates a small dumpfile by filtering unnecessary pages for the > analysis. To distinguish unnecessary pages, it needs a vmlinux file > including the debugging information. These days, the debugging package > becomes a huge file, and it is hard to install it into each system. > > To solve the problem, kdump developers discussed it at lkml and kexec-ml. > As the result, we reached the conclusion that necessary information > for dump filtering (called "vmcoreinfo") should be embedded into the > first kernel file and it should be accessed through /proc/vmcore > during the second kernel. > (http://www.uwsg.iu.edu/hypermail/linux/kernel/0707.0/1806.html) > > Dan Aloni created the patch set for the above implementation. > (http://www.uwsg.iu.edu/hypermail/linux/kernel/0707.1/1053.html) > > And I updated it for multi architectures and memory models. > (http://lists.infradead.org/pipermail/kexec/2007-August/000479.html) > > > PATCH SET: > [1/3] [linux] Add vmcoreinfo > The patch is for linux-2.6.22. > The patch adds the vmcoreinfo data. Its address and size are output > to /sys/kernel/vmcoreinfo. > Looks good to me. Thanks Vivek