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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 91455C433F5 for ; Tue, 12 Oct 2021 01:03:46 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id F2CE760F3A for ; Tue, 12 Oct 2021 01:03:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org F2CE760F3A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 577F66B006C; Mon, 11 Oct 2021 21:03:45 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4FFEF6B0071; Mon, 11 Oct 2021 21:03:45 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 352216B0073; 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Tue, 12 Oct 2021 09:03:39 +0800 Received: from [10.174.177.243] (10.174.177.243) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2308.8; Tue, 12 Oct 2021 09:03:39 +0800 Message-ID: <3796d319-10a9-9721-f300-44a28f1f7507@huawei.com> Date: Tue, 12 Oct 2021 09:03:38 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.1.1 Subject: Re: mm/kasan/init.c:282:20: error: redefinition of 'kasan_populate_early_vm_area_shadow' Content-Language: en-US To: Andrew Morton , Naresh Kamboju CC: Linux-Next Mailing List , open list , linux-mm , kasan-dev , Andrey Ryabinin , Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , Stephen Rothwell References: <20211011135345.9506437ee2504a81054dc06f@linux-foundation.org> From: Kefeng Wang In-Reply-To: <20211011135345.9506437ee2504a81054dc06f@linux-foundation.org> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.174.177.243] X-ClientProxiedBy: dggeme720-chm.china.huawei.com (10.1.199.116) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: A9C70B0022D8 X-Stat-Signature: mbsq5pfsq49rjnwtj5yezrcc3iwptrsf Authentication-Results: imf25.hostedemail.com; dkim=none; dmarc=pass (policy=none) header.from=huawei.com; spf=pass (imf25.hostedemail.com: domain of wangkefeng.wang@huawei.com designates 45.249.212.188 as permitted sender) smtp.mailfrom=wangkefeng.wang@huawei.com X-HE-Tag: 1634000623-814391 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 2021/10/12 4:53, Andrew Morton wrote: > On Mon, 11 Oct 2021 18:12:44 +0530 Naresh Kamboju wrote: > >> + Andrew Morton >> >> On Mon, 11 Oct 2021 at 17:08, Naresh Kamboju wrote: >>> >>> Regression found on x86_64 gcc-11 built with KASAN enabled. >>> Following build warnings / errors reported on linux next 20211011. >>> >>> metadata: >>> git_describe: next-20211011 >>> git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next >>> git_short_log: d3134eb5de85 (\"Add linux-next specific files for 20211011\") >>> target_arch: x86_64 >>> toolchain: gcc-11 >>> >>> build error : >>> -------------- >>> mm/kasan/init.c:282:20: error: redefinition of >>> 'kasan_populate_early_vm_area_shadow' >>> 282 | void __init __weak kasan_populate_early_vm_area_shadow(void *start, >>> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >>> In file included from include/linux/mm.h:34, >>> from include/linux/memblock.h:13, >>> from mm/kasan/init.c:9: >>> include/linux/kasan.h:463:20: note: previous definition of >>> 'kasan_populate_early_vm_area_shadow' with type 'void(void *, long >>> unsigned int)' >>> 463 | static inline void kasan_populate_early_vm_area_shadow(void *start, >>> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >>> make[3]: *** [scripts/Makefile.build:288: mm/kasan/init.o] Error 1 >>> make[3]: Target '__build' not remade because of errors. >>> >>> >>> Reported-by: Linux Kernel Functional Testing >>> >>> build link: >>> ----------- >>> https://builds.tuxbuild.com/1zLv2snHfZN8QV01yA9MB8NhUZt/build.log >>> >>> build config: >>> ------------- >>> https://builds.tuxbuild.com/1zLv2snHfZN8QV01yA9MB8NhUZt/config >>> >>> # To install tuxmake on your system globally >>> # sudo pip3 install -U tuxmake >>> tuxmake --runtime podman --target-arch x86_64 --toolchain gcc-11 >>> --kconfig defconfig --kconfig-add >>> https://builds.tuxbuild.com/1zLv2snHfZN8QV01yA9MB8NhUZt/config > > Presumably "kasan: arm64: fix pcpu_page_first_chunk crash with > KASAN_VMALLOC". Let's cc Kefeng. Yes, I send a fix patch, and reply this mail, see https://lore.kernel.org/linux-mm/5077aa7e-0167-33b6-35f0-0ea7df8f2375@huawei.com/ > > . >