Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754929AbXHAXER (ORCPT ); Wed, 1 Aug 2007 19:04:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752322AbXHAXEF (ORCPT ); Wed, 1 Aug 2007 19:04:05 -0400 Received: from mx1.aecom.yu.edu ([129.98.1.51]:60298 "EHLO mx1.aecom.yu.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752301AbXHAXEE (ORCPT ); Wed, 1 Aug 2007 19:04:04 -0400 X-AuditID: 816201a0-9b39cbb000007c32-de-46b10ee6d8d0 Mime-Version: 1.0 Message-Id: In-Reply-To: <20070801223440.GS3972@stusta.de> References: <20070801223440.GS3972@stusta.de> Date: Wed, 1 Aug 2007 19:02:14 -0400 To: Adrian Bunk From: Maurice Volaski Subject: Re: drbd 8.0.2/3 doesn't load under kernel 2.6.21 Cc: jheffner@psc.edu, discussion@web100.org, linux-kernel@vger.kernel.org, drbd-user@linbit.com Content-Type: text/plain; charset="us-ascii" ; format="flowed" X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2089 Lines: 51 First, did you confirm this behavior? Can you please explain that? How could they possibly interact with one another? >On Wed, Aug 01, 2007 at 04:21:29PM -0400, Maurice Volaski wrote: >> I'm making an assumption that depmod is somehow to blame and have logged >> this as a kernel bug, http://bugzilla.kernel.org/show_bug.cgi?id=8829 > >depmod is working fine. > >It's the interaction between your two patches that breaks it for you. > >>>> It turns out I was adding the web100 patch (http://www.web100.org) to >>>> the 2.6.21 kernel and that's what causes the symbol resolving problem >>>> below. Adding the corresponding version of the web100 patch to the >>>> 2.6.20 kernel makes this problem appear there as well. On fresh >>>> versions of the kernel, this problem does not occur. At the moment, >>>> it's not possible to have a current kernel that contains both drbd >>>> and web100. >>>> >>>>> On a 64-bit Gentoo system with Gentoo's 2.6.21 kernel, drbd 8.0.2/3 >>>>> complains when I try to load the module: >>>>> >>>>> [ 134.141363] drbd: Unknown symbol cn_fini >>>>> [ 134.141399] drbd: Unknown symbol cn_init >>>>> >>>>> It works fine when I compile it and load in the previous kernel >>>>> version, 2.6.20 and the symbols are present in the map file >>>>> >>>>> ./System.map-genkernel-x86_64-2.6.21-gentoo-r2:ffffffff802935aa t >>>>> cn_fini >>>>> ./System.map-genkernel-x86_64-2.6.21-gentoo-r2:ffffffff8029362a t >>>>> cn_init >>>>> >>>>> I am c'cing the kernel mailing list because this appears to be a >>>>> problem with how any module accesses symbols in the kernel, not just >>>> >drbd. Source was compiled with Gentoo gcc-4.1.2, glibc-2.5-r3 > >cu >Adrian -- Maurice Volaski, mvolaski@aecom.yu.edu Computing Support, Rose F. Kennedy Center Albert Einstein College of Medicine of Yeshiva University - 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/