Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964987AbWHHQiF (ORCPT ); Tue, 8 Aug 2006 12:38:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964986AbWHHQiE (ORCPT ); Tue, 8 Aug 2006 12:38:04 -0400 Received: from mx1.redhat.com ([66.187.233.31]:28624 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S964984AbWHHQh7 (ORCPT ); Tue, 8 Aug 2006 12:37:59 -0400 Date: Tue, 8 Aug 2006 12:36:35 -0400 From: Dave Jones To: Kirill Korotaev Cc: Alan Cox , Muli Ben-Yehuda , =?iso-8859-1?Q?Bj=F6rn?= Steinbrink , linux-kernel@vger.kernel.org, dev@openvz.org, stable@kernel.org Subject: Re: + sys_getppid-oopses-on-debug-kernel.patch added to -mm tree Message-ID: <20060808163635.GF28990@redhat.com> Mail-Followup-To: Dave Jones , Kirill Korotaev , Alan Cox , Muli Ben-Yehuda , =?iso-8859-1?Q?Bj=F6rn?= Steinbrink , linux-kernel@vger.kernel.org, dev@openvz.org, stable@kernel.org References: <200608081432.k78EWprf007511@shell0.pdx.osdl.net> <20060808143937.GA3953@rhun.haifa.ibm.com> <20060808145138.GA2720@atjola.homenet> <20060808145709.GB3953@rhun.haifa.ibm.com> <1155050547.5729.91.camel@localhost.localdomain> <44D8B048.8060103@sw.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <44D8B048.8060103@sw.ru> User-Agent: Mutt/1.4.2.2i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 831 Lines: 22 On Tue, Aug 08, 2006 at 07:39:52PM +0400, Kirill Korotaev wrote: > >>Even without getting into just how ugly this is, is it really worth > >>it? > it is impossible to run debug kernels w/o this patch :/ > or are you asking whether this optimization worth it? > > What makes me worry is that this is a sign that vendors > don't even bother to run debug kernels :(((( Fedora rawhide is nearly always shipping with DEBUG_SLAB enabled, and we didn't hit this once. Are you sure this is a problem with DEBUG_SLAB, and not DEBUG_PAGEALLOC ? Dave -- http://www.codemonkey.org.uk - 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/