From patchwork Thu Jan 24 11:56:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Uladzislau Rezki X-Patchwork-Id: 10778809 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 899541390 for ; Thu, 24 Jan 2019 11:57:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 121C02EB1E for ; Thu, 24 Jan 2019 11:57:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 050572EC37; Thu, 24 Jan 2019 11:57:12 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6F9622EB1E for ; Thu, 24 Jan 2019 11:57:11 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 475348E0079; Thu, 24 Jan 2019 06:57:07 -0500 (EST) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 29E208E007C; Thu, 24 Jan 2019 06:57:07 -0500 (EST) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0A4988E0047; Thu, 24 Jan 2019 06:57:07 -0500 (EST) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from mail-lj1-f198.google.com (mail-lj1-f198.google.com [209.85.208.198]) by kanga.kvack.org (Postfix) with ESMTP id 80A498E0079 for ; Thu, 24 Jan 2019 06:57:06 -0500 (EST) Received: by mail-lj1-f198.google.com with SMTP id p65-v6so1612280ljb.16 for ; Thu, 24 Jan 2019 03:57:06 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:dkim-signature:from:to:cc:subject:date :message-id; bh=XL0JqsY6X1X29UDi1xNE6P2I/jRGDNxNnBq8+JvaPgs=; b=oydxGpuaXhixlqKS4X3VZjWIylW0b8mxj28WyB7qTn9lun8ueHOBubrmpJdWkcS1mh GMzVPY44CyfG3eDjx1o1wIikgrzgTnUrg9FCeuR+OF0zHR3LKikSye4c3lNMIQXFhYzp CyIjEKW2hWNLo5PaLwUELxjD/7oAzbwvtakREC+oDgJldoXpIR74IxcGDWIXBvz51kEy TbMkqkFmEcpCpbMn3j6WvBgJSMCSDGotCQlxL8/G28DJl65OKaQJDJ3zFfLjodgvAzDV TgtR/g8nb98RLzQ4uA/Mcuj8BpBkMyjBN7Cii881kpTGJ0AwWJvAGbzdPNc87v80C9Qz PJ4w== X-Gm-Message-State: AJcUukeEnhtQLrV007wmUp9+bIxRqL6Lg5V9TvIegiRyIBbSHyikVnQi eLIary9KsPX0yLGNlABhrHfi0108olYlrkHwy2853GNbnhEF5eM9F38Ej1tanc62SpvS+IgIYuA FiildDqf4pKA34SvvbUSuiFyABeSgKPW1WXjhkEXjLRIL1vNC7GubdLHreGx55ETj4tSeCMjpQk LNefsVnyriuzSXKC5zi2Dvfxe0XQuF/KRWDz748gRQK47RBF8fmEqXUSSqDJ+BcRwXieebjn9Fz /tLVIq+EFBEZN/NThJ9RIAsDEEj1m+Ik8N5PbIaO6dw5x+WAFpgUvOytANMaGw5mHEHhD7YfaXL UqanOkQxmBw1EckYuaz8zHgzvizUzlAvfgg4D0F58/nx6Dky2bDo9atQi72ISBiTegs+Bcuz//X P X-Received: by 2002:a2e:9b84:: with SMTP id z4-v6mr5161706lji.93.1548331025808; Thu, 24 Jan 2019 03:57:05 -0800 (PST) X-Received: by 2002:a2e:9b84:: with SMTP id z4-v6mr5161626lji.93.1548331024392; Thu, 24 Jan 2019 03:57:04 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1548331024; cv=none; d=google.com; s=arc-20160816; b=XK4IvNSBLxYRHExGF1qKDPqyNtvVLh7q1/Ml4/mp3raxlPaOTeO9bW+YjSnn70srZZ 7KsF4bcQGA7BTnIMNlACx+pkkpdMN8ZFjcHAU+5EadlkFcHs5Ei+U/ox5xdeNEK8C9/S qIS5bvtBuT06sZgyc0kdNmHTKPT8liTgDg2ieV6ZUJ7smWRShLKTA9i0vlszF20lZXUo zhwJ3Y0CMwDXvgcN/gvYK1+C9BjwZyrGVMM482GPFFZUTIrZnxpY1kNlUHIWtRlMc9g3 bwcqEs/0KvvAsHdAUL+FyPvu0X6cbkzTUfAJrdMiOMyL3KotuCpTkjDnDs6u4XALCieO 8xtA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=message-id:date:subject:cc:to:from:dkim-signature; bh=XL0JqsY6X1X29UDi1xNE6P2I/jRGDNxNnBq8+JvaPgs=; b=xHEFQX4YzMusDJ/0K55wh1iWiu/bCPGGRSAImRbZWfPuimIAPdib+MDbut/B90HDQd Caki/e/vnIXouYNnnxARSSq23R2EGhRGehwztwnzfWVKLvwQwZq9iGyLAxhSLIFDdJ8V XpAyGhdhQXclqzOVK+IObskpfblWB2hVvj0Z/hSKFq2KdnviJCTi4FpSsff01wkxq0KK 4vIgp4kin52Zw0B3nvOqvPPKVRnmr17bUuVKyq9EsCwYe9c6FhxxKo+EOD/Ngy3LH7kz e372UmGBQsb3iGdRjdlKtbqcWEP2vfuakoSDBCP+tZq56DBZ1BVt2KkS394W7/LFayzA /vEA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=hmfGQi1y; spf=pass (google.com: domain of urezki@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=urezki@gmail.com; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id a4sor1881192lfj.30.2019.01.24.03.57.04 for (Google Transport Security); Thu, 24 Jan 2019 03:57:04 -0800 (PST) Received-SPF: pass (google.com: domain of urezki@gmail.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=hmfGQi1y; spf=pass (google.com: domain of urezki@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=urezki@gmail.com; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=XL0JqsY6X1X29UDi1xNE6P2I/jRGDNxNnBq8+JvaPgs=; b=hmfGQi1yYUxrzj2bb9VF/ScFMrhgpLRS/JsHgvSO+qnR4qe7OqhNIrDoQGVyleXkQS VsP5YnaqEJGi2LwIZumBnMC7rJLF1EmxuZg9M1T/C+YqdRntTI47XGBupJtsUvEcb3O9 vh2tz5eAT6c/pCxQMKZXXkIX5MD0b1Mfdv1xL4uZ8kUPJEJ4/dOIFopNxtVl13Rkn5cu 31EZUVir1ozbL0NNm7zhz1CLPmIlhlSOd9aAO3eGcLrtfirFvh0g86iRNUo/ukPAkApz xdz4befNoT+VruGZv2lZB/LgjxrHYJXqACFVx4nI1WEg5hAbgAB1CXbgqBwQ7hIi9vGY 18BA== X-Google-Smtp-Source: ALg8bN6b8N9VKyOLlWnjztkzJBVewPJvyRB8jNYmgQCYpAceT2BpsvO/5XUIEE/Hf5+qN0gvPZ6veQ== X-Received: by 2002:a19:2d16:: with SMTP id k22mr5278535lfj.12.1548331022501; Thu, 24 Jan 2019 03:57:02 -0800 (PST) Received: from pc636.semobile.internal ([37.139.158.167]) by smtp.gmail.com with ESMTPSA id w202sm920226lff.31.2019.01.24.03.57.01 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 24 Jan 2019 03:57:01 -0800 (PST) From: "Uladzislau Rezki (Sony)" To: Andrew Morton , Michal Hocko , Matthew Wilcox , linux-mm@kvack.org Cc: LKML , Thomas Garnier , Oleksiy Avramchenko , Steven Rostedt , Joel Fernandes , Thomas Gleixner , Ingo Molnar , Tejun Heo , "Uladzislau Rezki (Sony)" Subject: [PATCH v1 0/2] stability fixes for vmalloc allocator Date: Thu, 24 Jan 2019 12:56:46 +0100 Message-Id: <20190124115648.9433-1-urezki@gmail.com> X-Mailer: git-send-email 2.11.0 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: X-Virus-Scanned: ClamAV using ClamSMTP Hello. The vmalloc test driver(https://lkml.org/lkml/2019/1/2/52) has been added to the linux-next. Therefore i would like to fix some stability issues i identified using it. I explained those issues in detail here: https://lkml.org/lkml/2018/10/19/786 There are two patches, i think they are pretty ready to go with, unless there are any comments from you. Thank you! --- Vlad Rezki Uladzislau Rezki (Sony) (2): mm/vmalloc: fix kernel BUG at mm/vmalloc.c:512! mm: add priority threshold to __purge_vmap_area_lazy() mm/vmalloc.c | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-)