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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 43A8EC2D0F7 for ; Tue, 12 May 2020 16:31:29 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id F210C206CC for ; Tue, 12 May 2020 16:31:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F210C206CC Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 6CE0D9000D1; Tue, 12 May 2020 12:31:28 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 65754900036; Tue, 12 May 2020 12:31:28 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 546039000D1; Tue, 12 May 2020 12:31:28 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0008.hostedemail.com [216.40.44.8]) by kanga.kvack.org (Postfix) with ESMTP id 363FB900036 for ; Tue, 12 May 2020 12:31:28 -0400 (EDT) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id E51578248D7C for ; Tue, 12 May 2020 16:31:27 +0000 (UTC) X-FDA: 76808607414.13.group03_cbe93ad84f20 X-HE-Tag: group03_cbe93ad84f20 X-Filterd-Recvd-Size: 2065 Received: from gentwo.org (gentwo.org [3.19.106.255]) by imf36.hostedemail.com (Postfix) with ESMTP for ; Tue, 12 May 2020 16:31:27 +0000 (UTC) Received: by gentwo.org (Postfix, from userid 1002) id F169B3F3DB; Tue, 12 May 2020 16:31:26 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by gentwo.org (Postfix) with ESMTP id F044B3EBBA; Tue, 12 May 2020 16:31:26 +0000 (UTC) Date: Tue, 12 May 2020 16:31:26 +0000 (UTC) From: Christopher Lameter X-X-Sender: cl@www.lameter.com To: Srikar Dronamraju cc: Andrew Morton , linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Michal Hocko , Mel Gorman , Vlastimil Babka , "Kirill A. Shutemov" , Michael Ellerman , Linus Torvalds , Gautham R Shenoy , Satheesh Rajendran , David Hildenbrand Subject: Re: [PATCH v4 3/3] mm/page_alloc: Keep memoryless cpuless node 0 offline In-Reply-To: <20200512132937.19295-4-srikar@linux.vnet.ibm.com> Message-ID: References: <20200512132937.19295-1-srikar@linux.vnet.ibm.com> <20200512132937.19295-4-srikar@linux.vnet.ibm.com> User-Agent: Alpine 2.22 (DEB 394 2020-01-19) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Bogosity: Ham, tests=bogofilter, spamicity=0.000004, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, 12 May 2020, Srikar Dronamraju wrote: > +#ifdef CONFIG_NUMA > + [N_ONLINE] = NODE_MASK_NONE, Again. Same issue as before. If you do this then you do a global change for all architectures. You need to put something in the early boot sequence (in a non architecture specific way) that sets the first node online by default. You have fixed the issue in your earlier patches for the powerpc archicture. What about the other architectures? Or did I miss something?