From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7DE80C10F11 for ; Wed, 24 Apr 2019 14:20:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5CD01218FC for ; Wed, 24 Apr 2019 14:20:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730131AbfDXOUo (ORCPT ); Wed, 24 Apr 2019 10:20:44 -0400 Received: from outbound-smtp24.blacknight.com ([81.17.249.192]:36614 "EHLO outbound-smtp24.blacknight.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725921AbfDXOUl (ORCPT ); Wed, 24 Apr 2019 10:20:41 -0400 Received: from mail.blacknight.com (pemlinmail03.blacknight.ie [81.17.254.16]) by outbound-smtp24.blacknight.com (Postfix) with ESMTPS id 82BBDB879C for ; Wed, 24 Apr 2019 15:20:39 +0100 (IST) Received: (qmail 25928 invoked from network); 24 Apr 2019 14:20:38 -0000 Received: from unknown (HELO techsingularity.net) (mgorman@techsingularity.net@[37.228.225.79]) by 81.17.254.9 with ESMTPSA (AES256-SHA encrypted, authenticated); 24 Apr 2019 14:20:38 -0000 Date: Wed, 24 Apr 2019 15:20:37 +0100 From: Mel Gorman To: Mike Rapoport Cc: x86@kernel.org, Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Christoph Hellwig , Matthew Wilcox , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] x86/Kconfig: deprecate DISCONTIGMEM support for 32-bit Message-ID: <20190424142037.GV18914@techsingularity.net> References: <1556112252-9339-1-git-send-email-rppt@linux.ibm.com> <1556112252-9339-3-git-send-email-rppt@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <1556112252-9339-3-git-send-email-rppt@linux.ibm.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 24, 2019 at 04:24:12PM +0300, Mike Rapoport wrote: > Mel Gorman says: > 32-bit NUMA systems should be non-existent in practice. The last NUMA > system I'm aware of that was both NUMA and 32-bit only died somewhere > between 2004 and 2007. If someone is running a 64-bit capable system in > 32-bit mode with NUMA, they really are just punishing themselves for fun. > > Mark DISCONTIGMEM broken for now and remove it in a couple of releases. > > Suggested-by: Christoph Hellwig > Suggested-by: Mel Gorman > Signed-off-by: Mike Rapoport It was really Christoph that suggested marking it broken but I do agree that it should be marked broken to see if anyone complains and if not, there is no real reason to keep discontig available on x86. Acked-by: Mel Gorman -- Mel Gorman SUSE Labs