From owner-freebsd-arch@FreeBSD.ORG Thu Jun 23 13:53:38 2005 Return-Path: X-Original-To: freebsd-arch@freebsd.org Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6C35716A41F for ; Thu, 23 Jun 2005 13:53:38 +0000 (GMT) (envelope-from obrien@NUXI.com) Received: from dragon.NUXI.org (trang.nuxi.com [66.93.134.19]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4810F43D1D for ; Thu, 23 Jun 2005 13:53:38 +0000 (GMT) (envelope-from obrien@NUXI.com) Received: from dragon.NUXI.org (obrien@localhost [127.0.0.1]) by dragon.NUXI.org (8.13.4/8.13.4) with ESMTP id j5NDrbIX044329; Thu, 23 Jun 2005 06:53:37 -0700 (PDT) (envelope-from obrien@dragon.NUXI.org) Received: (from obrien@localhost) by dragon.NUXI.org (8.13.4/8.13.1/Submit) id j5NDrbdD044328; Thu, 23 Jun 2005 06:53:37 -0700 (PDT) (envelope-from obrien) Date: Thu, 23 Jun 2005 06:53:37 -0700 From: "David O'Brien" To: Peter Wemm Message-ID: <20050623135337.GA44255@dragon.NUXI.org> Mail-Followup-To: obrien@freebsd.org, Peter Wemm , freebsd-arch@freebsd.org References: <1e89cd51050616062241e9e201@mail.gmail.com> <200506222323.26666.peter@wemm.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200506222323.26666.peter@wemm.org> X-Operating-System: FreeBSD 6.0-CURRENT Organization: The NUXI BSD Group X-Pgp-Rsa-Fingerprint: B7 4D 3E E9 11 39 5F A3 90 76 5D 69 58 D9 98 7A X-Pgp-Rsa-Keyid: 1024/34F9F9D5 User-Agent: Mutt/1.5.9i Cc: freebsd-arch@freebsd.org Subject: Re: Kernel Dump X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: obrien@freebsd.org List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 Jun 2005 13:53:38 -0000 On Wed, Jun 22, 2005 at 11:23:25PM -0700, Peter Wemm wrote: > IA64 and Sparc systems usually had sparse memory configurations and the > old raw format didn't have any facility to avoid storing holes. .. > I've just rewritten the AMD64 crashdump support to use ELF like ia64. > In fact, I reused most of the ia64 code. We ran into serious problems > at work, first on the amd64 platform and now also the i386 platform. > The problem is that x86 machines are increasinly having memory holes. > The simplistic dump code has no way to skip the memory hole and tries > to dump things like the AGP frame buffer, pci card MMIO space, > PCI-Express configuration space (this means accessing hardware!!) and > so on. Hi Peter, This is great news! I'm really happy to see this work. Will we be able to switch to this for 6.0R? -- -- David (obrien@FreeBSD.org)