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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 05E7EC43469 for ; Mon, 21 Sep 2020 02:03:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D6D88207BB for ; Mon, 21 Sep 2020 02:03:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726375AbgIUCC5 (ORCPT ); Sun, 20 Sep 2020 22:02:57 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:34158 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726236AbgIUCC5 (ORCPT ); Sun, 20 Sep 2020 22:02:57 -0400 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id A477B2FCBAD75EBC1A33; Mon, 21 Sep 2020 10:02:55 +0800 (CST) Received: from mdc.huawei.com (10.175.112.208) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.487.0; Mon, 21 Sep 2020 10:02:46 +0800 From: Chen Jun To: , CC: , , , Subject: =?UTF-8?q?=5BPATCH=20-next=200/5=5D=20mm/kmemleak=EF=BC=9Asupport=20for=20percpu=20memory=20leak=20detect?= Date: Mon, 21 Sep 2020 02:00:02 +0000 Message-ID: <20200921020007.35803-1-chenjun102@huawei.com> X-Mailer: git-send-email 2.25.0 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Originating-IP: [10.175.112.208] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Currently the reporting of the percpu chunks leaking problem are not supported. This patch set introduce this feature. PATCH 1-2 do some cleanup to current kmemleak. PATCH 3 make percpu memleak works. PATCH 4-5 add test case for percpu memleak detector. Following links are some real cases detected by it: [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=71e843295c680898959b22dc877ae3839cc22470 [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=667e57da358f61b6966e12e925a69e42d912e8bb *** BLURB HERE *** Chen Jun (1): mm/kmemleak-test: Add a test case for alloc_percpu Wei Yongjun (4): mm/kmemleak: make create_object return void mm/kmemleak: skip update_checksum for OBJECT_NO_SCAN objects mm/kmemleak: Add support for percpu memory leak detect mm/kmemleak-test: use %px instead of %p in print mm/kmemleak-test.c | 37 ++++++++++++---------- mm/kmemleak.c | 79 +++++++++++++++++++++++++++++++++++++--------- 2 files changed, 84 insertions(+), 32 deletions(-) -- 2.25.0