From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752533AbdJCNSW (ORCPT ); Tue, 3 Oct 2017 09:18:22 -0400 Received: from mx2.suse.de ([195.135.220.15]:47751 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751345AbdJCNSU (ORCPT ); Tue, 3 Oct 2017 09:18:20 -0400 Date: Tue, 3 Oct 2017 15:18:17 +0200 From: Michal Hocko To: Pavel Tatashin Cc: linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-arm-kernel@lists.infradead.org, x86@kernel.org, kasan-dev@googlegroups.com, borntraeger@de.ibm.com, heiko.carstens@de.ibm.com, davem@davemloft.net, willy@infradead.org, ard.biesheuvel@linaro.org, mark.rutland@arm.com, will.deacon@arm.com, catalin.marinas@arm.com, sam@ravnborg.org, mgorman@techsingularity.net, steven.sistare@oracle.com, daniel.m.jordan@oracle.com, bob.picco@oracle.com Subject: Re: [PATCH v9 08/12] mm: zero reserved and unavailable struct pages Message-ID: <20171003131817.omzbam3js67edp3s@dhcp22.suse.cz> References: <20170920201714.19817-1-pasha.tatashin@oracle.com> <20170920201714.19817-9-pasha.tatashin@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170920201714.19817-9-pasha.tatashin@oracle.com> User-Agent: NeoMutt/20170609 (1.8.3) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed 20-09-17 16:17:10, Pavel Tatashin wrote: > Some memory is reserved but unavailable: not present in memblock.memory > (because not backed by physical pages), but present in memblock.reserved. > Such memory has backing struct pages, but they are not initialized by going > through __init_single_page(). Could you be more specific where is such a memory reserved? -- Michal Hocko SUSE Labs