Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752442AbWCFV5P (ORCPT ); Mon, 6 Mar 2006 16:57:15 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752441AbWCFV5P (ORCPT ); Mon, 6 Mar 2006 16:57:15 -0500 Received: from wproxy.gmail.com ([64.233.184.192]:30223 "EHLO wproxy.gmail.com") by vger.kernel.org with ESMTP id S1752445AbWCFV5L convert rfc822-to-8bit (ORCPT ); Mon, 6 Mar 2006 16:57:11 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=FH6D31KhESvlQdX6ZpnKHpAW8PW+1bMoAwayIxg1kMKN3QADnqyxlVuW6SGVYEp+uWh0A9pHaZm/JorL7wj08vM8HcoFYkJhBjqvOSV1+RLJfDjmvWFFdbtKQTjKnKlKe1818Mp+neMkvlnTbZJMoHSnp+1EQ7e1XEDBBIHhA1U= Message-ID: <9a8748490603061357v3fd2e4b7q7abc51f775108684@mail.gmail.com> Date: Mon, 6 Mar 2006 22:57:06 +0100 From: "Jesper Juhl" To: "Dave Jones" , "Jesper Juhl" , "Jens Axboe" , "Linus Torvalds" , "Linux Kernel Mailing List" , "Andrew Morton" , markhe@nextd.demon.co.uk, "Andrea Arcangeli" , "Mike Christie" , "James Bottomley" Subject: Re: Slab corruption in 2.6.16-rc5-mm2 In-Reply-To: <20060306215515.GE11565@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: <200603060117.16484.jesper.juhl@gmail.com> <200603062124.42223.jesper.juhl@gmail.com> <20060306203036.GQ4595@suse.de> <9a8748490603061341l50febef9o3cb480bdbdcf925f@mail.gmail.com> <20060306215515.GE11565@redhat.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1025 Lines: 28 On 3/6/06, Dave Jones wrote: > On Mon, Mar 06, 2006 at 10:41:07PM +0100, Jesper Juhl wrote: > > > CONFIG_DEBUG_SLAB > > CONFIG_PAGE_OWNER > > CONFIG_DEBUG_VM > > CONFIG_DEBUG_PAGEALLOC > > > > The resulting kernel boots and runs just fine (no Oops) and leaves > > nothing in dmesg. > > So, without the debugging options it appears to the user that > > everything is OK - nasty. > > DEBUG_PAGEALLOC in particular is *fantastic* at making bugs hide. > I've lost many an hour trying to pin bugs down due to that. > Well, in this case, turning the option *off* hides the bug ;) -- Jesper Juhl Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html Plain text mails only, please http://www.expita.com/nomime.html - 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/