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[195.135.220.15]) by mx.google.com with ESMTPS id x32si2035764edc.425.2019.01.30.23.23.20 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 30 Jan 2019 23:23:20 -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 1502FAFC7; Thu, 31 Jan 2019 07:23:20 +0000 (UTC) Date: Thu, 31 Jan 2019 08:23:19 +0100 From: Michal Hocko To: Oscar Salvador Cc: linux-mm@kvack.org, dan.j.williams@intel.com, Pavel.Tatashin@microsoft.com, david@redhat.com, linux-kernel@vger.kernel.org, dave.hansen@intel.com Subject: Re: [RFC PATCH v2 0/4] mm, memory_hotplug: allocate memmap from hotadded memory Message-ID: <20190131072319.GN18811@dhcp22.suse.cz> References: <20190122103708.11043-1-osalvador@suse.de> <20190130215159.culyc2wcgocp5l2p@d104.suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190130215159.culyc2wcgocp5l2p@d104.suse.de> 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 Wed 30-01-19 22:52:04, Oscar Salvador wrote: > On Tue, Jan 22, 2019 at 11:37:04AM +0100, Oscar Salvador wrote: > > I yet have to check a couple of things like creating an accounting item > > like VMEMMAP_PAGES to show in /proc/meminfo to ease to spot the memory that > > went in there, testing Hyper-V/Xen to see how they react to the fact that > > we are using the beginning of the memory-range for our own purposes, and to > > check the thing about gigantic pages + hotplug. > > I also have to check that there is no compilation/runtime errors when > > CONFIG_SPARSEMEM but !CONFIG_SPARSEMEM_VMEMMAP. > > But before that, I would like to get people's feedback about the overall > > design, and ideas/suggestions. > > just a friendly reminder if some feedback is possible :-) I will be off next week and will not get to this this week. -- Michal Hocko SUSE Labs