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=-4.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 0D5E7C433DB for ; Mon, 8 Feb 2021 13:35:01 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9406064DD5 for ; Mon, 8 Feb 2021 13:35:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9406064DD5 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=1PKj6a7eQn2FvC/1gN+n6oQCr9hWSbsocGyPXDRiACM=; b=HqTjdKwxMKGniMgmwIOxWTdCE mBcevLAzFJzwLsgZQwBJssR2OYvCLs/hT86S6kyyPMJjh3++3SqkiOJsOUlE3wGILC9wjoJOtfqYd 05fyVw0LZiSMK7RvZViJ+1t7DErq0e9UIUdaB2OymLfoTNJmIGdx+Iu9rFaeyvkSXhdKJGz4NC4Jv bsI/nui5RTX2bscWpkro4itAkfPwNqNYxpZlfNF952OPWQu7W4ak8ljSqlLxlvRf4EJLY7ZxrHLW+ 3MqThzpJ225W+CzQv2D/OOMseQhJNVz+VWtg4pc7Cpw8mPxh54GWqolHmgm5tHF76ZPoSbWPgCvuW sjiM+fkUw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l96gk-0006pI-Vu; Mon, 08 Feb 2021 13:34:51 +0000 Received: from mx2.suse.de ([195.135.220.15]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l96gg-0006n2-BJ; Mon, 08 Feb 2021 13:34:47 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1612791284; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=tPdxySZddbQD9qXDKMPnVWIQTa7PPiE4Qwe7qfgymrs=; b=Ws1lDxg/c1OUiwJ+n1TiJoYFn0hPPDdML5K4+HkUiiEWmfvzMQjPpO3/qn1jln4ONS/kQr iAi2I/2SSVcImlpMcLn9sGvyK1nH8qeEtezsgDdAsfxEiDnjlAtRKDe8fv4OppLwE1jcQF IWgpduuoLm3r0wY2pkrb6rXd+NrR404= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id EAC5AAE47; Mon, 8 Feb 2021 13:34:43 +0000 (UTC) Date: Mon, 8 Feb 2021 14:34:37 +0100 From: Michal Hocko To: David Hildenbrand Subject: Re: [PATCH v17 08/10] PM: hibernate: disable when there are active secretmem users Message-ID: References: <20210208084920.2884-9-rppt@kernel.org> <38c0cad4-ac55-28e4-81c6-4e0414f0620a@redhat.com> <770690dc-634a-78dd-0772-3aba1a3beba8@redhat.com> <21f4e742-1aab-f8ba-f0e7-40faa6d6c0bb@redhat.com> <5db6ac46-d4e1-3c68-22a0-94f2ecde8801@redhat.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210208_083446_630282_843722DE X-CRM114-Status: GOOD ( 17.61 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Peter Zijlstra , Catalin Marinas , Dave Hansen , linux-mm@kvack.org, linux-kselftest@vger.kernel.org, "H. Peter Anvin" , Christopher Lameter , Shuah Khan , Thomas Gleixner , Elena Reshetova , linux-arch@vger.kernel.org, Tycho Andersen , linux-nvdimm@lists.01.org, Will Deacon , x86@kernel.org, Matthew Wilcox , Mike Rapoport , Ingo Molnar , Michael Kerrisk , Palmer Dabbelt , Arnd Bergmann , James Bottomley , Hagen Paul Pfeifer , Borislav Petkov , Alexander Viro , Andy Lutomirski , Paul Walmsley , "Kirill A. Shutemov" , Dan Williams , linux-arm-kernel@lists.infradead.org, linux-api@vger.kernel.org, "Rafael J. Wysocki" , linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Palmer Dabbelt , linux-fsdevel@vger.kernel.org, Shakeel Butt , Andrew Morton , Rick Edgecombe , Roman Gushchin , Mike Rapoport Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Btw. I do not see Rafael involved. Maybe he can add some insight to this. Please note that the patch in question is http://lkml.kernel.org/r/20210208084920.2884-9-rppt@kernel.org and the full series is http://lkml.kernel.org/r/20210208084920.2884-1-rppt@kernel.org On Mon 08-02-21 13:17:26, Michal Hocko wrote: > On Mon 08-02-21 12:26:31, David Hildenbrand wrote: > [...] > > My F33 system happily hibernates to disk, even with an application that > > succeeded in din doing an mlockall(). > > > > And it somewhat makes sense. Even my freshly-booted, idle F33 has > > > > $ cat /proc/meminfo | grep lock > > Mlocked: 4860 kB > > > > So, stopping to hibernate with mlocked memory would essentially prohibit any > > modern Linux distro to hibernate ever. > > My system seems to be completely fine without mlocked memory. It would > be interesting to see who mlocks memory on your system and check whether > the expectated mlock semantic really works for those. This should be > documented at least. > -- > Michal Hocko > SUSE Labs -- Michal Hocko SUSE Labs _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv