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=-0.5 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 13352CA9EA0 for ; Fri, 25 Oct 2019 15:58:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DCA7420663 for ; Fri, 25 Oct 2019 15:58:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="OEkUCuCs" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2503666AbfJYP6m (ORCPT ); Fri, 25 Oct 2019 11:58:42 -0400 Received: from mout.gmx.net ([212.227.15.19]:46101 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727498AbfJYP6l (ORCPT ); Fri, 25 Oct 2019 11:58:41 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1572019109; bh=eNYeWKDIB22/x3+hJ1wYKceqzT/kR7P9oYg/eZ1Fqww=; h=X-UI-Sender-Class:Subject:From:Reply-To:To:Cc:Date:In-Reply-To: References; b=OEkUCuCspvUNR0kn5yFz1mMXNQhBcBvCEzIFXsgcy9rp46FQqTqk2aqXlKPWYL6n2 NDU8x3LDJ0Gix3DpA8rHig+fra8dqMUAr+vc57wOEg4+kg4XD6T/MEEiPseSW3DicS Hi/mt12e3GN3jSJhWSnFsHuDYffTA0Y7usEbOh50= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from bear.fritz.box ([80.128.101.49]) by mail.gmx.com (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1M3UZ6-1iNTkd3Fis-000enE; Fri, 25 Oct 2019 17:58:29 +0200 Message-ID: Subject: Re: mlockall(MCL_CURRENT) blocking infinitely From: Robert Stupp Reply-To: snazy@snazy.de To: Michal Hocko , snazy@snazy.de Cc: Randy Dunlap , linux-kernel@vger.kernel.org, Linux MM , Andrew Morton , "Potyra, Stefan" Date: Fri, 25 Oct 2019 17:58:28 +0200 In-Reply-To: <20191025140029.GL17610@dhcp22.suse.cz> References: <20191025092143.GE658@dhcp22.suse.cz> <70393308155182714dcb7485fdd6025c1fa59421.camel@gmx.de> <20191025114633.GE17610@dhcp22.suse.cz> <20191025120505.GG17610@dhcp22.suse.cz> <20191025121104.GH17610@dhcp22.suse.cz> <20191025132700.GJ17610@dhcp22.suse.cz> <707b72c6dac76c534dcce60830fa300c44f53404.camel@gmx.de> <20191025135749.GK17610@dhcp22.suse.cz> <20191025140029.GL17610@dhcp22.suse.cz> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.34.1-2 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:8k2hW5NuA1biyDwFEWxoiO3W0XVbwSBLRBjQSA+bqybFSFXtRzO fitmfcOpKDDj8s1Yhvst2xIsD6Xv/Kz3Ilyem7Us1oKc0C52meIfEHKCdYw3SZQia6wWT/p fSzzIsWMyovVleoQdb06hgfyrTSID6iBKx1o6FZ/fk6gFUTAUP9wf/KNEN7YloWeXeKsEtZ HIHDD5R+hYUKTc6UbG9fA== X-UI-Out-Filterresults: notjunk:1;V03:K0:9Y10tAzUers=:WWHIy8YxpWIn3qV2z7BFYn 9TkMWv4IZA1WB610G20wZb1T1gz9agd694E/Y+uX9JVVHzqMxJaDevVLw9yQ7jJwEORICIX4Z Vi/PzPlkFWclaV5qm8MyvXQwJ33EMtSjpmGXLiPt3hf5TUnOtMiTExYukHa1JQAXXbU8FBHNV fEdBIkemc03EaImNMtfnDUIPQ5bxo3eoFyRNINYd7ErgUO2Rb7ZZeG8GUwqb50QIAxQblRRyY +A+pEzGKTid4aBdAC6Ts4OZenJcePmWBw18FI2I/PAjPaD+kN60ZFI6sSwIFupLip5lRYPK96 umuHuoQa6qEHfsPmN61wFjW5BDqjoZbp5Skk8zwlyqCNy6qfHQH9s8hQr/FTTLjBtkbrq+ifS WShVkdz5DMw6AgVKlbBt0r6quRwt+YcR9j4t87SOZNzHXUU8KBPk+Qv2zPWUl8pOlj8J1MYP0 C3fCdePq9l8VrieTh30rK/JrFotedZgfSdVZ2k6rp+9WD9Wg2cGTqW6tT+f6SASk/GCw98M/Q gTmMDHUjAgzFNlUCddUAIIW6ACwSfGeiX4wsI3cVBZMEQCJUJrqoNaJMIIvQzlpUNLTXowGSs 2jUGmkTmGw42N7M+ko/Fx1ez9G2GCwxW4IPKoOpctLXVDEbpj+vH4/14HUnTMrMuMrn2wrXs4 9YUOzM3jEQZRMyDmEERuzfga5NB/r3bdwHGWrzKjJ+Ysv+MVIY1Vl8rUZ+fZVcFPVD2uQ770t 0CvDaxcRojA9TJWbqLhDTPl6ppdFlYMt/HTmp/W7dVPrYSrhhUJyFtv4G209Ri9UzsccY9rKp 47wcatiHuFKLxJemsAwVO74nqYGBqC7oTsnIZe3bj3mF3U6N7Gy0H40d3wGbgow/8KMR6q9/Z jbC9FH2b1NSKxKdacDFQSA2kWaNXG4u00i2ZBQObM/0qUBKqB2bCOs6XQ35pgnSev5JWjgYqv w5G1y4KlbMITY64dQW8SlfLVzwtJ8Zny3b3PNw4Adhl4mszkJ12e/comCbDSYxjqkZzLvmEdC NilZAzqPRpfiU1Hf5zA8ZBIj2uvsFT8aP3gZsYR4P7/Lq7A/sUQSwyNXPq+l2rCk9mz/Q+GOo hjuJODvk8yCtHVUhEW4enyLVairB9BZr50467XQ7WAhpM/waxPG5ZHDtLSg4FLnHPolz4FD6W YP06VpUOi9BdKeKB7Y7vl8gPYBkybgoBHo7kowmLPXYQ2UnrVto2mstHQRFRflE8X3l+jJKGz Ugs+CEDnk2QRpl+g8nblUobCOABJl2zC5yAcjZg== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2019-10-25 at 16:00 +0200, Michal Hocko wrote: > And one more thing. Considering that you are able to reproduce and > you > have a working kernel, could you try to bisect this? Yikes - running self-built kernels brings back a lot of memories ;) Anyway, going this route (using the `config` from Ubuntu 5.1.x as a base and accepting the defaults for `make oldconfig`): git checkout v5.1-rc1 git bisect start git bisect bad git bisect good v5.0 ... first try @ e266ca36da7de45b64b05698e98e04b578a88888 is a `git bisect good` Will report back, when I've got a result...