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 645C3C433EF for ; Tue, 19 Apr 2022 00:03:30 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id D30F76B00D0; Mon, 18 Apr 2022 20:03:29 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id CE04E6B00D1; Mon, 18 Apr 2022 20:03:29 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B80776B00D2; Mon, 18 Apr 2022 20:03:29 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0247.hostedemail.com [216.40.44.247]) by kanga.kvack.org (Postfix) with ESMTP id A53236B00D0 for ; Mon, 18 Apr 2022 20:03:29 -0400 (EDT) Received: from smtpin30.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 58274A45C6 for ; Tue, 19 Apr 2022 00:03:29 +0000 (UTC) X-FDA: 79371679338.30.5C4E657 Received: from mail-ej1-f51.google.com (mail-ej1-f51.google.com [209.85.218.51]) by imf02.hostedemail.com (Postfix) with ESMTP id 3404280010 for ; Tue, 19 Apr 2022 00:03:27 +0000 (UTC) Received: by mail-ej1-f51.google.com with SMTP id k23so29666526ejd.3 for ; Mon, 18 Apr 2022 17:03:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=date:from:to:cc:subject:message-id:reply-to:references:mime-version :content-disposition:in-reply-to:user-agent; bh=0Jrc+iw0tlCHZVCvrZU9dQlHALwLLinvwgXCCSBrkoY=; b=eZNN+zJtFRhjplRNf5EtW5SJpYsN8KbZPbzxbfnvIwynpmcxrn87XAK2k9hDQll30U K2zM2uHsKX/XLXY5OuDQ/IWnD7ue4df48U1lVitPNXsnFIG40wm1hiMxEpB2PJzptvXZ 7WHeVQR4eos06R4IRIwP4hCRN4Sh6LIGR/fXaNIa1m57+lQtZGPfIAvnnukUh34m020W nIDlJqGzB3B1uaz7LI+i0xDBrCu2BBCtWoXw3zFvkZaSMHKhAt9SgfJSpOjLQz/8k+Dm pSt/G0+Mh8rbBLVHzex/G9dpwMsQX+CEJ5BHMrNzfLWqqIFSR0hg2ueL2OazPVj9roql IzYA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:reply-to :references:mime-version:content-disposition:in-reply-to:user-agent; bh=0Jrc+iw0tlCHZVCvrZU9dQlHALwLLinvwgXCCSBrkoY=; b=jCZabAzylJHqhm4KNe6Ulpoz7TB7Tuf2f/POg49dbgS3G4YgsBxjjlk+zvuaKVB00k fTMiukr9Casn9Ozsd/+pnn0QJVXrIMgQc2tCCxES2926CWrL+ZGqyRn0pEYT33PZ+RES HEQPSoYC+KVAtHEPigQbxihPi0Kki6mkyg2kZ/1IC7ypGWo6yIyA2M2yCJ4edRx/z+kV EwjW4SbxgSzByo6iBZaPsaJYZ4t8J4TKsuq0sY6Dzi/jg8WHg4hNYLXEeIVh+3ct4x30 eksQfwMFruVKGMe8UvkVFVH5ptuDYIYx7znCQ0YZj8tQOO6+NcT95Xgo3YEwSdWxi3vl Jkbg== X-Gm-Message-State: AOAM5331xwJu0y6bRSB0IOycpI3dEka4/nzLw1vZDFRSSaDOa+J+Ea/M V6tEZjFSX5IZN2IqT5Az2PM= X-Google-Smtp-Source: ABdhPJwCjTw+RlTrfeRr6YgaxMGjOqZhU06J4GNl5sm0oqKmI3ODCfxTuC7oyFy7r0oULCJMLpXT7Q== X-Received: by 2002:a17:906:1692:b0:6e8:d245:44a9 with SMTP id s18-20020a170906169200b006e8d24544a9mr11149313ejd.639.1650326607093; Mon, 18 Apr 2022 17:03:27 -0700 (PDT) Received: from localhost ([185.92.221.13]) by smtp.gmail.com with ESMTPSA id u3-20020a17090657c300b006d01de78926sm5019963ejr.22.2022.04.18.17.03.26 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Mon, 18 Apr 2022 17:03:26 -0700 (PDT) Date: Tue, 19 Apr 2022 00:03:26 +0000 From: Wei Yang To: xubo@kylinos.cn Cc: richard.weiyang@gmail.com, linux-mm@kvack.org Subject: Re: [Q] page allocation failure when there are many free pages Message-ID: <20220419000326.6cxbrbjyphu6hkjq@master> Reply-To: Wei Yang References: <20220417033505.sgxlhfyoumqyrkuo@master> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20170113 (1.7.2) Authentication-Results: imf02.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b=eZNN+zJt; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (imf02.hostedemail.com: domain of richard.weiyang@gmail.com designates 209.85.218.51 as permitted sender) smtp.mailfrom=richard.weiyang@gmail.com X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 3404280010 X-Stat-Signature: j3g3qukfn6c33fj99uj5knmg5e41ew9g X-HE-Tag: 1650326607-236084 X-Bogosity: Ham, tests=bogofilter, spamicity=0.323398, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Apr 18, 2022 at 02:29:44PM +0800, Bo Xu wrote: >Hi, Yang > >?????? From the messages you provided, there are not much free pages. Not much free pages means less than min? >?????? I guess the page alloc is happing in Node 0 with zone >?????? Normal.But in zone Normal free mem is lower than low mem,so Node 0 Normal free:1044716kB 0.99G min:958156kB 935.699 M You mean this? Yes, it is under memory pressure, but looks a little above min watermark. >?????? there are some memory pressure is your machine.But now i have >?????? no idea why page recliam or others did not make effect. > >Best Regards, >??Bo,Xu -- Wei Yang Help you, Help me