Message ID | 1562887528-5896-2-git-send-email-Hoan@os.amperecomputing.com |
---|---|
State | Not Applicable |
Delegated to: | David Miller |
Headers | show
Return-Path: <sparclinux-owner@vger.kernel.org> X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=sparclinux-owner@vger.kernel.org; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=os.amperecomputing.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=os.amperecomputing.com header.i=@os.amperecomputing.com header.b="J5IL3kXT"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 45lBxw2F29z9sMr for <patchwork-incoming@ozlabs.org>; Fri, 12 Jul 2019 09:25:56 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729470AbfGKXZz (ORCPT <rfc822;patchwork-incoming@ozlabs.org>); Thu, 11 Jul 2019 19:25:55 -0400 Received: from mail-eopbgr740122.outbound.protection.outlook.com ([40.107.74.122]:20938 "EHLO NAM01-BN3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728532AbfGKXZx (ORCPT <rfc822;sparclinux@vger.kernel.org>); Thu, 11 Jul 2019 19:25:53 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=VVwuPvrojSRmAiT4oLyUVqHSTETqikuopjbwqP0KV+gG7Ze31El33noCMUbHCTkUp4CmMid0WKLWbYyDrWZaat7ZgG4eokZUIRG11lF4oaDke9JQ84gqG26X3enLrYSuZChsG0cZcNjZUfCxzbE4qnJCkkVNJ6o7A2ohBhoSxXCXNEL9VdxO26fCZ6bqd0ewg1NYAZxa8+R8hsoJTUKA0MartPLewiumiEcnHXjNl/3YJ9DRtNfmMwAEliBiAwxki7vPGS6KdCi8B54o8LmFUteG2tT+OUlpqddyOxOtScp8fH2g/uurXHefkq2XrOc9Ml7wwmrUB3VPQXrbLO/wcQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=aAkwAUXFcJwgbrCQk1P/5UfnEYvBvi1WIDIoJ7eF/sg=; b=iS6wPtkfnItopB3uWlkR/fuLKUB29lXBH6XZrWItLeRJreFnmyy9Ygtpt7QKvFwr0HHFub8NXHQgn/zeeZkY2R9z9MjSJnwKUe10E5VeIE3TQYyG9SI2wtUO89sC0VhhaxUQTgd4m6HR35ExwXH7HaICt6OxD36aHrO6mgkGr2sud2RDznKZwgbpr88PQhDPcix7U++zQj6XfULeSuicWyOrG+5dSANjapUEYiBRz0tn/MfBahPenrfs5ofoky6vkaS9MP98s0q6kqxa2PKD/k9p4drUXSydHiTWcI9OesAA/Go5HMYc9ifQFORPAzDgHfr2DorTnPx8wiohMa2/lA== ARC-Authentication-Results: i=1; mx.microsoft.com 1;spf=pass smtp.mailfrom=os.amperecomputing.com;dmarc=pass action=none header.from=os.amperecomputing.com;dkim=pass header.d=os.amperecomputing.com;arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=os.amperecomputing.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=aAkwAUXFcJwgbrCQk1P/5UfnEYvBvi1WIDIoJ7eF/sg=; b=J5IL3kXT5B/vWbnmJm5M/jH9Yk0XQ66ap3/Wtjqh3TCEQYVwn2PtWHoLfdVscRm+1lFVqQF6WzC/8bOI7rmbSkeZ1/53gsfIbzKG1DQ0xQgl8CcrqfCX5iH9ZXZJIrrCeHcUTdYsDh4aTkmeVakEEosmz1iO0oeD9B39+VJ169c= Received: from BYAPR01MB4085.prod.exchangelabs.com (52.135.237.22) by BYAPR01MB5557.prod.exchangelabs.com (20.179.88.205) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2073.10; Thu, 11 Jul 2019 23:25:47 +0000 Received: from BYAPR01MB4085.prod.exchangelabs.com ([fe80::9dbb:1b4c:bace:ef80]) by BYAPR01MB4085.prod.exchangelabs.com ([fe80::9dbb:1b4c:bace:ef80%7]) with mapi id 15.20.2052.020; Thu, 11 Jul 2019 23:25:47 +0000 From: Hoan Tran OS <hoan@os.amperecomputing.com> To: Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will.deacon@arm.com>, Andrew Morton <akpm@linux-foundation.org>, Michal Hocko <mhocko@suse.com>, Vlastimil Babka <vbabka@suse.cz>, Oscar Salvador <osalvador@suse.de>, Pavel Tatashin <pavel.tatashin@microsoft.com>, Mike Rapoport <rppt@linux.ibm.com>, Alexander Duyck <alexander.h.duyck@linux.intel.com>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, "H . Peter Anvin" <hpa@zytor.com>, "David S . Miller" <davem@davemloft.net>, Heiko Carstens <heiko.carstens@de.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Christian Borntraeger <borntraeger@de.ibm.com> CC: "open list:MEMORY MANAGEMENT" <linux-mm@kvack.org>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>, "linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>, "sparclinux@vger.kernel.org" <sparclinux@vger.kernel.org>, "x86@kernel.org" <x86@kernel.org>, "linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, Open Source Submission <patches@amperecomputing.com>, Hoan Tran OS <hoan@os.amperecomputing.com> Subject: [PATCH v2 1/5] mm: Enable CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA Thread-Topic: [PATCH v2 1/5] mm: Enable CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA Thread-Index: AQHVOD/336vwo048FEmmzwG+DxzWnQ== Date: Thu, 11 Jul 2019 23:25:46 +0000 Message-ID: <1562887528-5896-2-git-send-email-Hoan@os.amperecomputing.com> References: <1562887528-5896-1-git-send-email-Hoan@os.amperecomputing.com> In-Reply-To: <1562887528-5896-1-git-send-email-Hoan@os.amperecomputing.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: CY4PR19CA0045.namprd19.prod.outlook.com (2603:10b6:903:103::31) To BYAPR01MB4085.prod.exchangelabs.com (2603:10b6:a03:56::22) authentication-results: spf=none (sender IP is ) smtp.mailfrom=hoan@os.amperecomputing.com; x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 2.7.4 x-originating-ip: [4.28.12.214] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: afb7b246-2fa9-41ed-0b23-08d7065719fd x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600148)(711020)(4605104)(1401327)(2017052603328)(7193020); SRVR:BYAPR01MB5557; x-ms-traffictypediagnostic: BYAPR01MB5557: x-microsoft-antispam-prvs: <BYAPR01MB5557067FB5EFEF0F4FDE9887F1F30@BYAPR01MB5557.prod.exchangelabs.com> x-ms-oob-tlc-oobclassifiers: OLM:9508; x-forefront-prvs: 0095BCF226 x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(4636009)(346002)(376002)(39840400004)(136003)(396003)(366004)(189003)(199004)(52116002)(66476007)(66556008)(66946007)(64756008)(66446008)(14454004)(5660300002)(1511001)(6506007)(386003)(71190400001)(71200400001)(6436002)(53936002)(66066001)(102836004)(25786009)(68736007)(6512007)(86362001)(3846002)(11346002)(14444005)(2616005)(186003)(81166006)(26005)(2906002)(446003)(478600001)(4326008)(76176011)(6486002)(7736002)(305945005)(54906003)(8936002)(110136005)(7416002)(6116002)(99286004)(476003)(316002)(8676002)(107886003)(81156014)(486006)(256004)(50226002)(921003)(1121003); DIR:OUT; SFP:1102; SCL:1; SRVR:BYAPR01MB5557; H:BYAPR01MB4085.prod.exchangelabs.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:0; received-spf: None (protection.outlook.com: os.amperecomputing.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: L/8qjgkjroZ4Y9kYzJhXFihMxdIQJ2dAIy2Gdh3Ev8QQUx4j7mI+megk/B0mNCOeECpsTmH/FE4qvcPGr6D8LNSEJz3aA8SgHc2k7ChVUDIccI/VmWZ9iW/Px52xGajn0uss0BTbWRWnGL4ryxxpDtoHegY2B0F7xkkJp4/9ygiB4pBXeGdx7i+N55tKQodwy6XsQ2GIawBuOK3LVLKsYc53Qb0+zKsP44UyEvZKlL6JxiUZJlY/lFHGL2XY+ofA0iTz3NDs8lu7epwxwZ1L+yL/kPzr6FhqyDuyHIb7AmRcAl14KPRGEijQNpD59EFzYJP8AgCOVbVBzzg7wqDoR0uhg/eZqqzqx+HVRcSlq3JcIgd9UHS0vXO2pGkYMG379ONHcLrVA8RsY30ctrkASOdkY7OUzwzk06FBY+fJ1d0= Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: os.amperecomputing.com X-MS-Exchange-CrossTenant-Network-Message-Id: afb7b246-2fa9-41ed-0b23-08d7065719fd X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Jul 2019 23:25:46.9016 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3bc2b170-fd94-476d-b0ce-4229bdc904a7 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: Hoan@os.amperecomputing.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR01MB5557 Sender: sparclinux-owner@vger.kernel.org Precedence: bulk List-ID: <sparclinux.vger.kernel.org> X-Mailing-List: sparclinux@vger.kernel.org |
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mm: Enable CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA
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diff --git a/mm/page_alloc.c b/mm/page_alloc.c index d66bc8a..6335505 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1413,7 +1413,7 @@ int __meminit early_pfn_to_nid(unsigned long pfn) } #endif -#ifdef CONFIG_NODES_SPAN_OTHER_NODES +#ifdef CONFIG_NUMA /* Only safe to use early in boot when initialisation is single-threaded */ static inline bool __meminit early_pfn_in_nid(unsigned long pfn, int node) {
In NUMA layout which nodes have memory ranges that span across other nodes, the mm driver can detect the memory node id incorrectly. For example, with layout below Node 0 address: 0000 xxxx 0000 xxxx Node 1 address: xxxx 1111 xxxx 1111 Note: - Memory from low to high - 0/1: Node id - x: Invalid memory of a node When mm probes the memory map, without CONFIG_NODES_SPAN_OTHER_NODES config, mm only checks the memory validity but not the node id. Because of that, Node 1 also detects the memory from node 0 as below when it scans from the start address to the end address of node 1. Node 0 address: 0000 xxxx xxxx xxxx Node 1 address: xxxx 1111 1111 1111 This layout could occur on any architecture. This patch enables CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA to fix this issue. Signed-off-by: Hoan Tran <Hoan@os.amperecomputing.com> --- mm/page_alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)