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 BE5A8C433DB for ; Mon, 8 Feb 2021 12:17:43 +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 695D264E27 for ; Mon, 8 Feb 2021 12:17:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 695D264E27 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=MKysabb5GrwqPy4lvZfOv6TgoijAetK4EdTfF2HfgsI=; b=DGwEk17bKwsBshfQeBPRs236H bTyKyzvVFhLCeHPAaUV1nesQpYZMVccd2COZd6AOkN9SvP7L/l5kQcwQGKNMI0GqCRmDb+EDRnc0R g3Q8XB4VzhhySWEn3/XzsZYdgXr8XXiWCx/ePEEL5qBsGbPCyQI3PCjEb13aYUxj/nGifznhCh5iV nO0Vig81xobCaEBOgNjphzaTGsrUAJgof8ox9zumrDN7v9V5wKcBeduirMou+q50facAVyXeJmEqv JjPauGfo9U5zDlAp/+pEMuOAyx6poMjNAcq5IcJv4M+JqDbI26Fx4ItzVoaIAIa7WMu+hxsdMwe4n tct+KrjXQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l95Ty-0006rD-DD; Mon, 08 Feb 2021 12:17:34 +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 1l95Ts-0006op-Pc; Mon, 08 Feb 2021 12:17:29 +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=1612786646; 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=n+2LVFofWrDzo5XkXIbA8HqM46aC4ZldghhZ33psn6M=; b=KSPyq7HV9X52hHkw5B3fAQ6GHHyEdJ7l95EmFctR048cvtpwwEJSzUjnHCHT2EQT2m1fwI Jsts1jfz6j4PUcL+oOZWQPNH0wYw5qJxQghfmFs/AJ9ffQiRDEhRFqPxBNTbqXBqUQzMJN tTTWa45AKjgqUKiY3BBR4wSnVehy4C8= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 268A7AC6E; Mon, 8 Feb 2021 12:17:26 +0000 (UTC) Date: Mon, 8 Feb 2021 13:17:24 +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: <20210208084920.2884-1-rppt@kernel.org> <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: <5db6ac46-d4e1-3c68-22a0-94f2ecde8801@redhat.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210208_071729_030165_187330E2 X-CRM114-Status: GOOD ( 14.38 ) 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, 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 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 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv