Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757682AbZF3Vwl (ORCPT ); Tue, 30 Jun 2009 17:52:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757560AbZF3Vwc (ORCPT ); Tue, 30 Jun 2009 17:52:32 -0400 Received: from smtp-out.google.com ([216.239.33.17]:6996 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756960AbZF3Vwb (ORCPT ); Tue, 30 Jun 2009 17:52:31 -0400 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=date:from:x-x-sender:to:cc:subject:in-reply-to:message-id: references:user-agent:mime-version:content-type:x-system-of-record; b=Jh+gqmlOcukYo+yYnc4Kpc8aC28CDeY3CpY75CPwAbZU08EA81kFnvUP30WDcUrVj ysPzPSjpRnQuLelLIKRGA== Date: Tue, 30 Jun 2009 14:52:22 -0700 (PDT) From: David Rientjes X-X-Sender: rientjes@chino.kir.corp.google.com To: Christoph Lameter cc: Pekka Enberg , Larry Finger , "Rafael J. Wysocki" , Linux Kernel Mailing List , Kernel Testers List , Johannes Berg Subject: Re: [Bug #13319] Page allocation failures with b43 and p54usb In-Reply-To: Message-ID: References: <5Hhc7UkUKEO.A.fNH.4kASKB@chimera> <4A48F114.1010702@lwfinger.net> <84144f020906292355o7cf63f7ch47bd19961cf92da3@mail.gmail.com> <1246374095.8014.28.camel@penberg-laptop> User-Agent: Alpine 2.00 (DEB 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-System-Of-Record: true Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1092 Lines: 28 On Tue, 30 Jun 2009, Christoph Lameter wrote: > We could add an option that disables debugging for troublesome page > size slabs > > > slab_debug=p > > or so > I definitely like that more than slab_debug=A, where we're requiring an added parameter for full debugging to be activated. I'm curious whether there would ever be any use for disabling debugging on specific caches for reasons other than higher minimum orders for metadata, though, given that we already support things like slub_debug=FZ,cache, which should only enable free debugging and redzoning even with CONFIG_SLUB_DEBUG_ON enabled for cache. I think the solution to this is really based on good software engineering and test practices, though, so hopefully there'll be a consensus on which direction to take before any time is spent in implementing and pushing it. -- 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/