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[195.135.220.15]) by mx.google.com with ESMTPS id g18si79805edh.385.2019.02.15.05.01.48 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 15 Feb 2019 05:01:48 -0800 (PST) Received-SPF: softfail (google.com: domain of transitioning mhocko@kernel.org does not designate 195.135.220.15 as permitted sender) client-ip=195.135.220.15; Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning mhocko@kernel.org does not designate 195.135.220.15 as permitted sender) smtp.mailfrom=mhocko@kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id ADDD3AD56; Fri, 15 Feb 2019 13:01:47 +0000 (UTC) Date: Fri, 15 Feb 2019 14:01:47 +0100 From: Michal Hocko To: Tetsuo Handa Cc: linux-mm@kvack.org, Andrew Morton Subject: Re: [linux-next-20190214] Free pages statistics is broken. Message-ID: <20190215130147.GZ4525@dhcp22.suse.cz> References: <201902150227.x1F2RBhh041762@www262.sakura.ne.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201902150227.x1F2RBhh041762@www262.sakura.ne.jp> User-Agent: Mutt/1.10.1 (2018-07-13) 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 Fri 15-02-19 11:27:10, Tetsuo Handa wrote: > I noticed that amount of free memory reported by DMA: / DMA32: / Normal: fields are > increasing over time. Since 5.0-rc6 is working correctly, some change in linux-next > is causing this problem. Just a shot into the dark. Could you try to disable the page allocator randomization (page_alloc.shuffle kernel command line parameter)? Not that I see any bug there but it is a recent change in the page allocator I am aware of and it might have some anticipated side effects. -- Michal Hocko SUSE Labs