Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755622AbcC2Axp (ORCPT ); Mon, 28 Mar 2016 20:53:45 -0400 Received: from resqmta-po-02v.sys.comcast.net ([96.114.154.161]:43538 "EHLO resqmta-po-02v.sys.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755057AbcC2Axo (ORCPT ); Mon, 28 Mar 2016 20:53:44 -0400 Date: Mon, 28 Mar 2016 19:53:39 -0500 (CDT) From: Christoph Lameter X-X-Sender: cl@east.gentwo.org To: Andrew Morton cc: js1304@gmail.com, Pekka Enberg , David Rientjes , Jesper Dangaard Brouer , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Joonsoo Kim Subject: Re: [PATCH 02/11] mm/slab: remove BAD_ALIEN_MAGIC again In-Reply-To: <20160328141911.3048ab8d406b86a6e5b9f910@linux-foundation.org> Message-ID: References: <1459142821-20303-1-git-send-email-iamjoonsoo.kim@lge.com> <1459142821-20303-3-git-send-email-iamjoonsoo.kim@lge.com> <20160328141911.3048ab8d406b86a6e5b9f910@linux-foundation.org> Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 617 Lines: 16 On Mon, 28 Mar 2016, Andrew Morton wrote: > On Mon, 28 Mar 2016 14:26:52 +0900 js1304@gmail.com wrote: > > > From: Joonsoo Kim > > > > Initial attemp to remove BAD_ALIEN_MAGIC is once reverted by > > 'commit edcad2509550 ("Revert "slab: remove BAD_ALIEN_MAGIC"")' > > because it causes a problem on m68k which has many node > > but !CONFIG_NUMA. > > Whaaa? How is that even possible? I'd have thought that everything > would break at compile time (at least) with such a setup. Yes we have that and the support for this caused numerous issues. Can we stop supporting such a configuration?