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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id DD101C4332F for ; Thu, 29 Dec 2022 01:29:31 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 3874C8E0002; Wed, 28 Dec 2022 20:29:31 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 3371F8E0001; Wed, 28 Dec 2022 20:29:31 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1B0308E0002; Wed, 28 Dec 2022 20:29:31 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 0B4A78E0001 for ; Wed, 28 Dec 2022 20:29:31 -0500 (EST) Received: from smtpin25.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id CB617160466 for ; Thu, 29 Dec 2022 01:29:30 +0000 (UTC) X-FDA: 80293611300.25.7C8CDAE Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by imf11.hostedemail.com (Postfix) with ESMTP id 6231D40007 for ; Thu, 29 Dec 2022 01:29:27 +0000 (UTC) Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b="Eea/Y2ZF"; arc=reject ("signature check failed: fail, {[1] = sig:microsoft.com:reject}"); spf=pass (imf11.hostedemail.com: domain of fengwei.yin@intel.com designates 134.134.136.65 as permitted sender) smtp.mailfrom=fengwei.yin@intel.com; dmarc=pass (policy=none) header.from=intel.com ARC-Seal: i=2; s=arc-20220608; d=hostedemail.com; t=1672277367; a=rsa-sha256; cv=fail; b=oxRwzSEpLt1ai3wPP4j+SPXJusgPa2xAiw6FfFpJ9MOyk8PKWfpfZwGHlIto8z04gGyR9c /mFIK5XHlCnV8DELk7O3oBCGRUVrtIfXsJVzyWF02jDX8OE+r51VIO/v+3GIQZq1hjdZjj +K1df1i7MTyGsJ2ymOgQXYkYA7g4sfE= ARC-Authentication-Results: i=2; imf11.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b="Eea/Y2ZF"; arc=reject ("signature check failed: fail, {[1] = sig:microsoft.com:reject}"); spf=pass (imf11.hostedemail.com: domain of fengwei.yin@intel.com designates 134.134.136.65 as permitted sender) smtp.mailfrom=fengwei.yin@intel.com; dmarc=pass (policy=none) header.from=intel.com ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1672277367; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=xhv3r97cShtX/Ev80WSTLOymfzVHzjxgcXcnsVxp0bA=; b=WXHJ6VeUW9KXR4BrJlPBlt3N5Te1wYxSI3hbEHrtD+yGzBvFrfC2qA8eo6Fjznj50lQnv2 jwmO2XN37fIR0YiHPdjWu0GXgj3cY9JJgD+QxKwHwjmwX2j27HnBgk7GbpX/3f1OKZTsBa cbcIr8Uq+QpkG8LAL4rtRM1NXt2cpAQ= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1672277367; x=1703813367; h=message-id:date:subject:to:cc:references:from: in-reply-to:content-transfer-encoding:mime-version; bh=x9DYlM3nS+N4o7Z552a9ambGMP5gIy/6iKJ16EQmAR8=; b=Eea/Y2ZFiKonh6z8JMo8Niyx8+APlU1XRBQuRYBVWpMXQXQa17fQ40t7 0L/25sxhHYL6gW75Mr2EH0b5JgDCTraF5+yXIX9EB0RlMBFa5RH9BDlqo 8pm7aoKaL4nay+Hgyx9zymaaS9a0b79d0rtbZHBCiZ2ZQ7HlQR5LpwNEK n8XAGZHFsjTW+yR8Fy8KZebdZqSoeC2aLZ2dgU6M5gTT4H2TPiW7SdvLD KKBVJuJTnzCmwjW8NhT7bK8Nft/TgPmU1//g8HARMkaIrp3amATTFqqSu M/E0DDjqBYmdyWtAohkByEJfVw3tli2NOvipj6z8JaG76x69RUAx2hT4f A==; X-IronPort-AV: E=McAfee;i="6500,9779,10574"; a="322942465" X-IronPort-AV: E=Sophos;i="5.96,282,1665471600"; d="scan'208";a="322942465" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Dec 2022 17:29:26 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10574"; a="827547595" X-IronPort-AV: E=Sophos;i="5.96,282,1665471600"; d="scan'208";a="827547595" Received: from fmsmsx601.amr.corp.intel.com ([10.18.126.81]) by orsmga005.jf.intel.com with ESMTP; 28 Dec 2022 17:29:25 -0800 Received: from fmsmsx603.amr.corp.intel.com (10.18.126.83) by fmsmsx601.amr.corp.intel.com (10.18.126.81) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.16; Wed, 28 Dec 2022 17:29:25 -0800 Received: from fmsedg601.ED.cps.intel.com (10.1.192.135) by fmsmsx603.amr.corp.intel.com (10.18.126.83) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.16 via Frontend Transport; Wed, 28 Dec 2022 17:29:25 -0800 Received: from NAM10-BN7-obe.outbound.protection.outlook.com (104.47.70.108) by edgegateway.intel.com (192.55.55.70) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.16; Wed, 28 Dec 2022 17:29:25 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=jwY/YvJ6UMPzo86mr6BxP/av7u8CuBGGdqzVhPI/e1c0qnZvuQlv0PakzWjzMi4jGUfQ8j5h32JRqUGE+Zs/8JbNy6DVfwfMiU+sMbTzlrJHQUMZUb28b47QPhZqDY63IZrRFiYCITLJSm3U7lzQSzTraZmC3cAwaRw38sjf5xY/f1jGz7ieaiwXHtQsbYVf8gItM/tnQTkopvlBxdOQDMyv5Ke3/pKv331DZ8r9KkqJx6hERyShMzTLGPIxWr0J5cY4+IdLYMq/i6Fe9K3xYGx0ycaeMx4gNP5G47+Xwmh79U+Vx7yqI+iPfY6XkLlDsB7G7V1obvw6fbl1Dq/1qA== 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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=xhv3r97cShtX/Ev80WSTLOymfzVHzjxgcXcnsVxp0bA=; b=eMkQLHYrpZhyKGidCagFJiozCIqbHgZsuTWano9vHy6Wc5tUi+587B0749Xm+xQ/4lZuZl/ym+Z5bfN6U3cyrNua0aBlDRv0/TMuJhAsCllJcorLB6c5mmcCHho5V/7j4QD6gFAD1aAbMyREeQjAVSai8j+PceBekDUTHWpwQvQcpmxUwuwIdKA4+RUNguND5AsUluOg7C2fN9ZaZqRi1GIE0O+1wiCyAWbx2NZIoRubJLswlRO6XETIeMoG1IEAdKH2BQ0cwj6WIZ3l9LNwqEn1HLg59W3hd6Kz9/dfSLZsFy0V38VEBSfU4EoCyVIndffpW+3mS7R2VzyZnNVa0A== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none Received: from CO1PR11MB4820.namprd11.prod.outlook.com (2603:10b6:303:6f::8) by CY5PR11MB6260.namprd11.prod.outlook.com (2603:10b6:930:23::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5944.14; Thu, 29 Dec 2022 01:29:22 +0000 Received: from CO1PR11MB4820.namprd11.prod.outlook.com ([fe80::505b:18be:f1dd:104e]) by CO1PR11MB4820.namprd11.prod.outlook.com ([fe80::505b:18be:f1dd:104e%9]) with mapi id 15.20.5944.016; Thu, 29 Dec 2022 01:29:22 +0000 Message-ID: Date: Thu, 29 Dec 2022 09:29:13 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0 Thunderbird/102.6.1 Subject: Re: [RFC PATCH] mm/thp: check and bail out if page in deferred queue already Content-Language: en-US To: Andrew Morton CC: , , , , , , , , References: <20221223135207.2275317-1-fengwei.yin@intel.com> <20221228153336.73381b85d4dbd056645b94e1@linux-foundation.org> From: "Yin, Fengwei" In-Reply-To: <20221228153336.73381b85d4dbd056645b94e1@linux-foundation.org> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SG2PR06CA0227.apcprd06.prod.outlook.com (2603:1096:4:68::35) To CO1PR11MB4820.namprd11.prod.outlook.com (2603:10b6:303:6f::8) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PR11MB4820:EE_|CY5PR11MB6260:EE_ X-MS-Office365-Filtering-Correlation-Id: aaa60dba-915c-4f6b-7b1b-08dae93c1d1b X-LD-Processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:CO1PR11MB4820.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230022)(136003)(39860400002)(346002)(376002)(396003)(366004)(451199015)(8676002)(4326008)(66476007)(66556008)(8936002)(6506007)(66946007)(31686004)(5660300002)(41300700001)(6916009)(2906002)(316002)(36756003)(38100700002)(86362001)(4744005)(6512007)(186003)(478600001)(53546011)(966005)(26005)(82960400001)(6486002)(2616005)(31696002)(6666004)(45980500001)(43740500002);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?NkdpZmxqMVFJbjB2MXdVTjR1YkZQWDlCbVNFMzA1YkdkTmlBSzRJNjBOaDQw?= =?utf-8?B?c1orZEVjaVdVZDJwQkFmcDhzUkxRRG1DTjFtbjluK0gzRHROZk01QkxKNGpS?= =?utf-8?B?NGdvVkpIZ0Q2ck5Nd3ZQd04yTUdYTlM0b0hiMEFNald0STI0SEtXOThOa1BZ?= =?utf-8?B?ODBncG1xempoM1c2V3NoSWlDZVd3QmhJS2NlRUxTdFZCcVpYRHI2TEUxY0x3?= =?utf-8?B?YmQyKzAxbXp5NStqL2t2RTZsUEZITDkzc01oNVgyMjRjL2t4U0p2dTM1Zi9u?= =?utf-8?B?SS9oRzI2emp3d012RFoxRWYvcVlnODE1bkZhYkRIYUs2WXl1V2ozaENYZ3Ro?= =?utf-8?B?K0hOOWg5U3RCRmszbFB6Y3lReURjZFV3ajZaeTRDbVRSVnpDVGxQaCtkUzdO?= =?utf-8?B?c2NzUXJxeHBuOEVEQW95ejhjeVlzRGlvc3hhQ3hzNkYxeXJKOC9Rd3hLRW5o?= =?utf-8?B?NlBOVno5ai9ETzl0V0tCN3A0aGczZFE4czMxd0xTMGhIVVFhdUJPbVNaVWgw?= =?utf-8?B?Ymc1ejU0c0pZdTJyWGkvL2phWktuZkZEeTJtV0ZLL3ZrZFlZY2NsdFlCWnZR?= =?utf-8?B?QWVRbG1wT0k3ZjFsWmhBS01FMzZoaEN3MUNYcGR5QThMdlZxd1BVYTg3TDhp?= =?utf-8?B?dU5zNG9LYURnWVR0QXloMXVUa0JhR01yTWxodnZ1Rng2a2tRWDlPRm1mOVkr?= =?utf-8?B?emZ5WFYyRmprRElxVDJkVXBjcUU0dmNOMlN6eDVUN1BKOHhXYmo2YnBwdFBr?= =?utf-8?B?MFlqR2VucWZNK21hZ0s1L3pob1RYQ1I1Zml1UzlneWYyU0ZKM3Yya0dMS0Np?= =?utf-8?B?c2ZXWE9uVFg3VU5yUGFJUlhUYXpXSGlmdDZjSTNQT04wQnZ1NWlvMThHVXIz?= =?utf-8?B?QVpZQUptQWxjOS9CMDJwY1dTOG1URVRodHZQaHRUNXdYZTE5aDZvZUFPbGZG?= =?utf-8?B?WTY2Zjd4VlhYYjJmemRzUG0rRXlLaGk4NXZwS0I1SHMrOHk0N1FrVjVlU1Ru?= =?utf-8?B?SDFNbGVaMGh5bm9XRURiZ0lyQ0M2cWVXUUx6ZTJQTUpTbE9pSDNuWWdRVjA4?= =?utf-8?B?Y0JxZUxJWFdJQStROEUyZ1Z2SHhydTVxbVZmbHF4cHBQeUZ1T29Qd0JyazB4?= =?utf-8?B?SENIZTBsZXFNREFqWHUzeThpaXM4YzJ4aGRBMG4rZnVFMU5Oc1dzbHFHNnNO?= =?utf-8?B?K1VtMUIrL3VMWlFadEYxdE1LQnhtMTlpb0p0eUM4Q1R4TUF5NkhhbVNrN3Fz?= =?utf-8?B?UXU3TE5LWW52UFZHbUpSa3V6NmxyaEJFN29Ldld2dGtlN1k2WVZyYklOSGVX?= =?utf-8?B?QUtMYmM0ci9SSnd4WURpZmR0aVNpMUtuSDR1RG5tZzNVTVVaYVdGU3VGemZ0?= =?utf-8?B?ZThKckJrSnlOeGZCSW4rZVRreVJMM0pVMEJPQnpSR2JjN1dWbkFwNWNuMjRW?= =?utf-8?B?aGVGYUdGaGZPdzM1L2cwT0pXMDQyK2lIR0pQNnNRRHA2VGtNcXJ3MWFRZW5v?= =?utf-8?B?Tit1RkZOUm9RM2xpTUxybnBXNGU0Q0V1RUMyclA4Y1dsaVQzZHU0cTlKZmQ4?= =?utf-8?B?YUxvdW9NZDBYUkZBTi9ieWNFQzAyRDVraWRkcmpOQXBtRVc3Rlk0bFdqMFd0?= =?utf-8?B?OUVTRm8wYjdjWUNWYzdRNHVmNHJldEU2RzFWbHlabzFRMVhyc1NmWFBJYk0w?= =?utf-8?B?M0RtbFJZSXRxYi8vd240WWxITWRObkQwczR3ZWhHc1RiWW1pb1VqR3VXbi8v?= =?utf-8?B?Y3ZldzVXMDdMSTFCTjlGcTZFVGlGU0dCbjM1QlozZGtIdDlHL0o3WVRRL2Q0?= =?utf-8?B?VE1KM3NwUGl2TGxRM08ycXkwbC9PenR1blFXd2VsbTNxYlB3M09TamhmcXdX?= =?utf-8?B?NzVvV1JBQU1CRzNhWEFPNEhBYWVJRE94UVdYblhETS8ycVV5bHgxZEs2RU9S?= =?utf-8?B?eFlCeG0rSW45VUZ6cGFGSURHYllybXcxMlJnMFJiNlI2c3dYdEJkRmRVb2pm?= =?utf-8?B?eUR2b0UwUVN1a1UwL0pYSjJyRTIzai9DQlo1S0dPTGluVkx6NGhYeTcyVHV3?= =?utf-8?B?eFFkMzNjL0dXcE81MEJZY1l3KzRxSVhSSlI3bTREcGt6QUJxOFFnd1I5YTNC?= =?utf-8?B?SVVCc29QVWdrUjVSb2tJTGtxbDh3OTJ0MFFLcTZlczhOdnI0c0s5bDVUL2hN?= =?utf-8?B?Rmc9PQ==?= X-MS-Exchange-CrossTenant-Network-Message-Id: aaa60dba-915c-4f6b-7b1b-08dae93c1d1b X-MS-Exchange-CrossTenant-AuthSource: CO1PR11MB4820.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Dec 2022 01:29:22.3090 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: UHt12Yp7ugTaSOE+Z7kGeVerGDo/b2OimK54lGY6+0IJYJxwDUsoqDrl4C058exaXNAQMxh8QS15wAk2LUjX9g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY5PR11MB6260 X-OriginatorOrg: intel.com X-Rspam-User: X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 6231D40007 X-Stat-Signature: 37zognz3twfyabjoocgc67kaqei6nka6 X-HE-Tag: 1672277367-796093 X-HE-Meta: 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 12/29/2022 7:33 AM, Andrew Morton wrote: > On Fri, 23 Dec 2022 21:52:07 +0800 Yin Fengwei wrote: > >> Kernel build regression with LLVM was reported here: >> https://lore.kernel.org/all/Y1GCYXGtEVZbcv%2F5@dev-arch.thelio-3990X/ >> with commit f35b5d7d676e ("mm: align larger anonymous mappings on THP >> boundaries"). And the commit f35b5d7d676e was reverted. >> >> It turned out the regression is related with madvise(MADV_DONTNEED) >> was used by ld.lld. > > Are we able to identify a Fixes: target for this? Thanks. I am not sure. The commit f35b5d7d676e didn't introduce this issue. It just exposed this issue and it's reverted already. The partial THP behavior was like this from the first day and not a regression. Regards Yin, Fengwei