From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261655AbULGIbe (ORCPT ); Tue, 7 Dec 2004 03:31:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261661AbULGIbd (ORCPT ); Tue, 7 Dec 2004 03:31:33 -0500 Received: from main.gmane.org ([80.91.229.2]:17876 "EHLO main.gmane.org") by vger.kernel.org with ESMTP id S261655AbULGIb3 (ORCPT ); Tue, 7 Dec 2004 03:31:29 -0500 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: Georg Schild Subject: Re: 2.6.10-rc[2|3] protection fault on /proc/devices Date: Tue, 07 Dec 2004 09:31:20 +0100 Message-ID: <41B56A58.8050404@gmx.net> References: <41B4E70F.8040306@gmx.net> <20041206234044.51667e94.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: 81.223.124.22 User-Agent: Mozilla Thunderbird 0.9 (X11/20041128) X-Accept-Language: en-us, en In-Reply-To: <20041206234044.51667e94.akpm@osdl.org> X-Enigmail-Version: 0.89.0.0 X-Enigmail-Supports: pgp-inline, pgp-mime Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Andrew Morton wrote: > Georg Schild wrote: > >>Since 2.6.10-rc2 I am having problems accessing /proc/devices. On >>startup some init-skripts access this node and print out a protection >>fault. i am having this on pcmcia and swap startup. My system is an >>amd64 @3000+ in an Acer Aspire 1501Lmi at 64bit mode running gentoo. >>.config is the same as on 2.6.10-rc1 which works good. cat on >>/proc/devices gives the same problems. The kernel has just a patch for >>wbsd (builtin mmc-cardreader) from Pierre Ossman in use, everything else >>is vanilla. Does anyone know of this issue and perhaps on how to solve this? >> >> > How odd. All I can think is that something has registered a zillion > devices and get_blkdev_list() has run off the /proc page. But then, it > should have oopsed in sprintf().. > > Still. Please send a copy of your /proc/devices from 2.6.10-rc1 and also > apply this: > > to 2.6.10-rc3 and see if that fixes it. If so, please send the > /proc/devices content from this kernel. > > Beyond that, perhaps something scribbled on the data structures in there. > Setting CONFIG_SLAB_DEBUG and/or CONFIG_DEBUG_PAGEALLOC might turn > something up. I have tried now with applied patch against the vanilla-sources, that means without the wbsd-patch, nothing changed. same is with the wbsd-patch. i did a complete rebuild (make clean etc.) everytime. How can i enable some debugging?