Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753373AbYG2BXD (ORCPT ); Mon, 28 Jul 2008 21:23:03 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751716AbYG2BWv (ORCPT ); Mon, 28 Jul 2008 21:22:51 -0400 Received: from kirsty.vergenet.net ([202.4.237.240]:46952 "EHLO kirsty.vergenet.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751529AbYG2BWu (ORCPT ); Mon, 28 Jul 2008 21:22:50 -0400 Date: Tue, 29 Jul 2008 11:22:48 +1000 From: Simon Horman To: "Eric W. Biederman" Cc: Vivek Goyal , Andrew Morton , Muli Ben-Yehuda , Tony Luck , linux-ia64@vger.kernel.org, Chandru , kexec@lists.infradead.org, linux-kernel@vger.kernel.org, Terry Loftin , Ingo Molnar , Linus Torvalds , Paul Mundt , Paul Mackerras , linuxppc-dev@ozlabs.org Subject: Re: [PATCH 1/5] Move elfcorehdr_addr out of vmcore.c (Was: Re: [patch] crashdump: fix undefined reference to `elfcorehdr_addr') Message-ID: <20080729012245.GI10434@verge.net.au> References: <20080727234529.GM6175@verge.net.au> <20080728015117.GA12055@verge.net.au> <20080728024526.GB3334@verge.net.au> <20080728034007.GA30450@verge.net.au> <20080728211025.GA9985@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1557 Lines: 37 On Mon, Jul 28, 2008 at 03:47:41PM -0700, Eric W. Biederman wrote: > Vivek Goyal writes: > > > Hi All, > > > > How does following series of patches look like. I have moved > > elfcorehdr_addr out of vmcore.c and pushed it to arch dependent section > > of crash dump to make sure that it can be worked with even when > > CONFIG_PROC_VMCORE is disabled and CONFIG_CRASH_DUMP is enabled. > > > > I tested it on x86_64. Compile tested it on i386 and ppc64. ia64 and > > sh versions are completely untested. > > Given the current state of the code: > Acked-by: "Eric W. Biederman" > > To process a kernel crash dump we pass the kernel elfcorehdr option, > so testing to see if it was passed seems reasonable. > > In general I think this method of handling the problems with kdump is > too brittle to live, but in the case of iommus we certainly need to do > something different, and unfortunately iommus were not common on x86 > when the original code was merged so we have not handled them well. Agreed, however these patches look like they really ought to be merged into a single patch for the sake of bisect. As things stand, applying the first patch will break the build on each architecture with an architecture specific until the latter is applied. -- Horms -- 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/