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 95ADAC433EF for ; Mon, 11 Oct 2021 20:53:52 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 38A8460F22 for ; Mon, 11 Oct 2021 20:53:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 38A8460F22 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id AD40A6B0071; Mon, 11 Oct 2021 16:53:51 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A5CA06B0072; Mon, 11 Oct 2021 16:53:51 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8FD03900002; Mon, 11 Oct 2021 16:53:51 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0172.hostedemail.com [216.40.44.172]) by kanga.kvack.org (Postfix) with ESMTP id 7D1AD6B0071 for ; Mon, 11 Oct 2021 16:53:51 -0400 (EDT) Received: from smtpin17.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 3FC732FD87 for ; Mon, 11 Oct 2021 20:53:51 +0000 (UTC) X-FDA: 78685358262.17.7117EBD Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf21.hostedemail.com (Postfix) with ESMTP id E75A8D03FAA9 for ; Mon, 11 Oct 2021 20:53:50 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 1B16760F11; Mon, 11 Oct 2021 20:53:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1633985628; bh=JRiHDPpa/b2nvZt745PcbTbloc06/449gj+RuRs0POc=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=bPTVvzI21lWBCgGle48sGEd0S5rAAibwG5MtRHmKKGXaH6bICiDEpbSnOr8Vq6Ciy hokKffgKnx2S2wI9Nl8Axk4kZNluLuBY6Zx6okLhjrnLL2ygVlVFvabyXyHulJpnZx onphqhZohxUZkdSzwJ1B0020oAX8kgf3sCmdQVdQ= Date: Mon, 11 Oct 2021 13:53:45 -0700 From: Andrew Morton To: Naresh Kamboju Cc: Linux-Next Mailing List , open list , linux-mm , kasan-dev , Andrey Ryabinin , Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , Stephen Rothwell , Kefeng Wang Subject: Re: mm/kasan/init.c:282:20: error: redefinition of 'kasan_populate_early_vm_area_shadow' Message-Id: <20211011135345.9506437ee2504a81054dc06f@linux-foundation.org> In-Reply-To: References: X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: E75A8D03FAA9 X-Stat-Signature: uepuqkurzzgg8as8rnyko7cj7qdxpcxa Authentication-Results: imf21.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=bPTVvzI2; spf=pass (imf21.hostedemail.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none X-HE-Tag: 1633985630-688713 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 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.