Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263433AbVBDBYH (ORCPT ); Thu, 3 Feb 2005 20:24:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262946AbVBDBVl (ORCPT ); Thu, 3 Feb 2005 20:21:41 -0500 Received: from sv1.valinux.co.jp ([210.128.90.2]:55957 "EHLO sv1.valinux.co.jp") by vger.kernel.org with ESMTP id S261766AbVBDBHb (ORCPT ); Thu, 3 Feb 2005 20:07:31 -0500 Date: Fri, 04 Feb 2005 10:07:34 +0900 From: Itsuro Oda To: Itsuro Oda Subject: Re: [Fastboot] [PATCH] Reserving backup region for kexec based crashdumps. Cc: ebiederm@xmission.com (Eric W. Biederman), Koichi Suzuki , Vivek Goyal , Andrew Morton , fastboot , lkml , Maneesh Soni , Hariprasad Nellitheertha , suparna bhattacharya In-Reply-To: <20050204074755.18EA.ODA@valinux.co.jp> References: <20050204074755.18EA.ODA@valinux.co.jp> Message-Id: <20050204100522.18F6.ODA@valinux.co.jp> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.10.04 [ja] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1300 Lines: 35 Hi, On Fri, 04 Feb 2005 08:18:56 +0900 Itsuro Oda wrote: > > > > 5) dump kernel: export all valid physical memory (and saved register > > > information) to the user. (as /dev/oldmem /proc/vmcore ?) > > > > Or in user space, by just mmaping /dev/mem. That is part of the > > current conversation. The only real point for putting that code in > > the kernel (besides momentum) is it is a cheap way to get the exact > > data structures of the kernel you are using. But since: > > (a) it does not look like any primary kernel data structures need to > > be examined. > > (b) even simple compile options like SMP/NOSMP are enough to change > > the layout of the data structures. > > I think there is a pretty good case for moving all of the work to > > user space. But you still need a kernel that loads and > > runs in the reserved area. > > > I don't make sense. what do you mean ? > "I don't make sense." should be "It does not make sense." sorry. I'm not familiar with English. -- Itsuro ODA - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/