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 120B8CA9EA0 for ; Fri, 25 Oct 2019 13:27:04 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D11A121D7B for ; Fri, 25 Oct 2019 13:27:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D11A121D7B 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 774A16B0003; Fri, 25 Oct 2019 09:27:03 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 724F46B0006; Fri, 25 Oct 2019 09:27:03 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 63A1F6B0007; Fri, 25 Oct 2019 09:27:03 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 3E5926B0003 for ; Fri, 25 Oct 2019 09:27:03 -0400 (EDT) Received: from smtpin23.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with SMTP id DFEF752AD for ; Fri, 25 Oct 2019 13:27:02 +0000 (UTC) X-FDA: 76082382684.23.trail47_3473849c8010 X-HE-Tag: trail47_3473849c8010 X-Filterd-Recvd-Size: 2488 Received: from mx1.suse.de (mx2.suse.de [195.135.220.15]) by imf35.hostedemail.com (Postfix) with ESMTP for ; Fri, 25 Oct 2019 13:27:02 +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 1D5D0AD3A; Fri, 25 Oct 2019 13:27:01 +0000 (UTC) Date: Fri, 25 Oct 2019 15:27:00 +0200 From: Michal Hocko To: snazy@snazy.de Cc: Randy Dunlap , linux-kernel@vger.kernel.org, Linux MM , Andrew Morton , "Potyra, Stefan" Subject: Re: mlockall(MCL_CURRENT) blocking infinitely Message-ID: <20191025132700.GJ17610@dhcp22.suse.cz> References: <4576b336-66e6-e2bb-cd6a-51300ed74ab8@snazy.de> <20191025092143.GE658@dhcp22.suse.cz> <70393308155182714dcb7485fdd6025c1fa59421.camel@gmx.de> <20191025114633.GE17610@dhcp22.suse.cz> <20191025120505.GG17610@dhcp22.suse.cz> <20191025121104.GH17610@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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 Fri 25-10-19 15:10:39, Robert Stupp wrote: [...] > cat /proc/$(pidof test)/smaps Nothing really unusual that would jump at me except for > 7f8be90ed000-7f8be9265000 r-xp 00025000 103:02 > 44307431 /lib/x86_64-linux-gnu/libc-2.30.so > Size: 1504 kB > KernelPageSize: 4 kB > MMUPageSize: 4 kB > Rss: 832 kB > Pss: 5 kB > Shared_Clean: 832 kB > Shared_Dirty: 0 kB > Private_Clean: 0 kB > Private_Dirty: 0 kB > Referenced: 832 kB > Anonymous: 0 kB > LazyFree: 0 kB > AnonHugePages: 0 kB > ShmemPmdMapped: 0 kB > Shared_Hugetlb: 0 kB > Private_Hugetlb: 0 kB > Swap: 0 kB > SwapPss: 0 kB > Locked: 5 kB Huh, 5kB, is this really the case or some copy&paste error? How can we end up with !pagesize multiple here? > THPeligible: 0 > VmFlags: rd ex mr mw me lo sd -- Michal Hocko SUSE Labs