From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765288AbYD1Chx (ORCPT ); Sun, 27 Apr 2008 22:37:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753379AbYD1Chp (ORCPT ); Sun, 27 Apr 2008 22:37:45 -0400 Received: from rgminet01.oracle.com ([148.87.113.118]:15084 "EHLO rgminet01.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761305AbYD1Chp (ORCPT ); Sun, 27 Apr 2008 22:37:45 -0400 Date: Sun, 27 Apr 2008 19:31:55 -0700 From: Randy Dunlap To: Matt Domsch Cc: werner , linux-kernel@vger.kernel.org Subject: Re: EDD problem -- regression -- crash on booting by probing EDD Message-Id: <20080427193155.fb703973.randy.dunlap@oracle.com> In-Reply-To: <20080426231704.GD22588@auslistsprd01.us.dell.com> References: <20080422142103.GA5652@auslistsprd01.us.dell.com> <1208910044.20701@copaya.yi.org> <20080423083547.a048aaee.randy.dunlap@oracle.com> <20080426231704.GD22588@auslistsprd01.us.dell.com> Organization: Oracle Linux Eng. X-Mailer: Sylpheed 2.4.7 (GTK+ 2.8.10; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAQAAAAI= X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE X-Whitelist: TRUE Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 26 Apr 2008 18:17:04 -0500 Matt Domsch wrote: > On Wed, Apr 23, 2008 at 08:35:47AM -0700, Randy Dunlap wrote: > > On Tue, 22 Apr 2008 21:20:44 -0300 (GFT) werner wrote: > > > > > As I tested yesterday extensively, the problem wasn't present at 2.6.24-rc5-git6 (SYS Linux 0.17 install DVD) nor at 2.6.24-rc6-git2 (SYS 0.19) , but at 2.6.24-rc6-git8 (SYS 0.20-rc1 and 0.20-rc2) and 2.6.25 (0.21-r3). > > > > > > The whole compiled packages of these kernels still are at copaya.yi.org/tgz , but I extracted the important parts, see enclosed here. The .tar.bz2 file contains the config and the protocoll of the compilation (inclusive warning / error messages). > > > > > > As you can see, the diff between the config of 2.6.24-rc6-git2 and -git8 is nothing. That means: THE ERROR ENTERED INTO THE KERNEL BETWEEN THESE TWO GITs !! > > > > Hi, > > I'm a little confused. > > > > Is this supposed to be "between 2.6.25-rc6-git2 and 2.6.25-rc6-git8"? > > You say 2.6.24-rc6-git*. I just want to make sure of which patch > > interval we are looking at. > > It's definitely .24 given the dates for the SYS releases he notes. The > diffstat between the two is relatively short [1], but I can't see > anything that can be related. This code runs so early, during real > mode startup, that my only suspects are: > > arch/x86/kernel/head_32.S | 2 +- > arch/x86/kernel/smpboot_64.c | 2 +- > include/asm-generic/tlb.h | 3 - > include/asm-x86/byteorder.h | 4 +- > include/asm-x86/msr.h | 74 +++++++++-------- > > > > [1] http://domsch.com/linux/edd-bug-2008-04-26.patch > > but none of those are obviously the culprit to me... Yeah, there are also some IDE changes in that -rc2..-rc8 range. I'm wondering if any of them could interfere. > Werner, the initcall_debug trace would be most helpful; without that > I'm not sure how much progress we can make on this. That should be helpful. --- ~Randy