Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 2 Dec 2001 14:31:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 2 Dec 2001 14:31:43 -0500 Received: from ubermail.mweb.co.za ([196.2.53.169]:32010 "EHLO ubermail.mweb.co.za") by vger.kernel.org with ESMTP id ; Sun, 2 Dec 2001 14:31:30 -0500 Message-ID: <3C0A83B6.5060209@mweb.co.za> Date: Sun, 02 Dec 2001 21:40:38 +0200 From: Bongani Hlope Reply-To: bonganilinux@mweb.co.za User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:0.9.4) Gecko/20011019 Netscape6/6.2 X-Accept-Language: en-us MIME-Version: 1.0 To: Pierre Rousselet CC: linux-kernel@vger.kernel.org Subject: Re: 2.5.1-pre5 not easy to boot with devfs In-Reply-To: <3C085FF3.813BAA57@wanadoo.fr> <9u9qas$1eo$1@penguin.transmeta.com> <200112010701.fB171N824084@vindaloo.ras.ucalgary.ca> <3C0898AD.FED8EF4A@wanadoo.fr> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I am using Mandrake 8.1 (I think it loads devfs on startup) I have compiled 2.4.17-pre1 and i get the same oops. Pierre Rousselet wrote: > Richard Gooch wrote: > >>Linus Torvalds writes: >> >>>In article <3C085FF3.813BAA57@wanadoo.fr>, >>>Pierre Rousselet wrote: >>> >>>>As far as I can see, >>>> >>>>when CONFIG_DEBUG_KERNEL is set >>>> and >>>>when devfsd is started at boot time >>>>I get an Oops when remounting, rw the root fs : >>>> >>>>Unable to handle kernel request at va 5a5a5a5e >>>> >>>POISON_BYTE is 0x5a. Something in devfs is using a pointer from a data >>>structure that was already free'd, and was thus corrupted by poisoning. >>> >>>(the above is almost certainly just a pointer dereference off 0x5a5a5a5a >>>with an offset of 4 for some entry at the beginning of a structure, >>>which is why you get the final "5e" in the page fault address). >>> >>> >>>>It boots OK with devfsd when CONFIG_DEBUG_KERNEL is not set. >>>>It boots OK without devfsd when CONFIG_DEBUG_KERNEL is set (then devfsd >>>>can be started after login). >>>> >>>Well, not poisoning the free'd memory makes it "work" only in the sense >>>that usually the free'd memory hasn't been re-allocated yet, so you >>>don't see the bug even if it is still there. >>> >>>Richard Gooch probably wants a full stack trace, with symbols. Which >>>should show it fairly clearly. At least EIP and the first few "stack >>>trace" entries.. >>> >>Indeed I do. Please Cc: me on devfs related stuff. And please apply >>devfs-patch-v200, which fixes a stupid typo. I'd also be interested in >>knowing the behaviour with 2.4.17-pre1. ....... I am using Mandrake 8.1 (I think it loads devfs on startup) I have compiled 2.4.17-pre1 and i get the same oops. 2.4.16-pre1 does not seem to have a problem. I will try 2.4.17-pre2 and see how it goes. -Bongani - 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/