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 X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EF5B1CA9EA1 for ; Fri, 18 Oct 2019 08:25:02 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id C977621D7C for ; Fri, 18 Oct 2019 08:25:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C977621D7C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 5F84F8E0013; Fri, 18 Oct 2019 04:25:02 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5A9918E0003; Fri, 18 Oct 2019 04:25:02 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 44AB38E0013; Fri, 18 Oct 2019 04:25:02 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0090.hostedemail.com [216.40.44.90]) by kanga.kvack.org (Postfix) with ESMTP id 2538F8E0003 for ; Fri, 18 Oct 2019 04:25:02 -0400 (EDT) Received: from smtpin30.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with SMTP id AFDC8180B1A75 for ; Fri, 18 Oct 2019 08:25:01 +0000 (UTC) X-FDA: 76056220002.30.nerve29_ebfa20f9b815 X-HE-Tag: nerve29_ebfa20f9b815 X-Filterd-Recvd-Size: 1824 Received: from mx1.suse.de (mx2.suse.de [195.135.220.15]) by imf18.hostedemail.com (Postfix) with ESMTP for ; Fri, 18 Oct 2019 08:25:01 +0000 (UTC) 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 04E8DAD87; Fri, 18 Oct 2019 08:24:59 +0000 (UTC) Date: Fri, 18 Oct 2019 10:24:59 +0200 From: Michal Hocko To: David Hildenbrand Cc: Naoya Horiguchi , Qian Cai , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , Mike Kravetz Subject: Re: memory offline infinite loop after soft offline Message-ID: <20191018082459.GE5017@dhcp22.suse.cz> References: <1570829564.5937.36.camel@lca.pw> <20191014083914.GA317@dhcp22.suse.cz> <20191017093410.GA19973@hori.linux.bs1.fc.nec.co.jp> <20191017100106.GF24485@dhcp22.suse.cz> <1571335633.5937.69.camel@lca.pw> <20191017182759.GN24485@dhcp22.suse.cz> <20191018021906.GA24978@hori.linux.bs1.fc.nec.co.jp> <33946728-bdeb-494a-5db8-e279acebca47@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <33946728-bdeb-494a-5db8-e279acebca47@redhat.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000015, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri 18-10-19 10:13:36, David Hildenbrand wrote: [...] > However, if the compound page spans multiple pageblocks Although hugetlb pages spanning pageblocks are possible this shouldn't matter in__test_page_isolated_in_pageblock because this function doesn't really operate on pageblocks as the name suggests. It is simply traversing all valid RAM ranges (see walk_system_ram_range). -- Michal Hocko SUSE Labs