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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 096CEC001DB for ; Mon, 14 Aug 2023 15:47:37 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 96E8C8E0002; Mon, 14 Aug 2023 11:47:36 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8F71E8E0001; Mon, 14 Aug 2023 11:47:36 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7E57F8E0002; Mon, 14 Aug 2023 11:47:36 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 6D7CE8E0001 for ; Mon, 14 Aug 2023 11:47:36 -0400 (EDT) Received: from smtpin05.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 16DAD12062B for ; Mon, 14 Aug 2023 15:47:36 +0000 (UTC) X-FDA: 81123140112.05.730DDAE Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf04.hostedemail.com (Postfix) with ESMTP id 22E5F40013 for ; Mon, 14 Aug 2023 15:47:33 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b="q/ndevMR"; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf04.hostedemail.com: domain of nathan@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=nathan@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1692028054; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=RAVg3M4wYYC8SYAvhvUJBF3kG+n6GPhcm0Ssa9z+30o=; b=X7jtICxrgKs6F0aXqwzAVJoa/1WzXZx+Q6vXHUgDWPrcIaC0VaIpvfH90IGblCw8ZIbjeq CRpT6UBpJAvdk4iOllnRLZL4WnMSauDMPofZHxx06AU62pJE42l1S+Qmg3iDXhRVl/oEB0 4GKYetYAulJCHgZsXTbAnF+kzhxYC/8= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b="q/ndevMR"; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf04.hostedemail.com: domain of nathan@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=nathan@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1692028054; a=rsa-sha256; cv=none; b=pcMvEAnDJgVSZxsSgph8N46XJvclzL0CCY0T6/ujXZ3L6B+pdS8fcDpv9b4ZAu1L4xT4L4 tldPBlQ8SfeKUq1ixTl4WDwi8lnNpNSdTcS7SlHOT+UrMqwUNUl3BU/BhuqtYRPobztYGO +wKPkLLGLCPpdCGMa6KDCzPlEU1XOKQ= Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 040D9626B7; Mon, 14 Aug 2023 15:47:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E3AA0C433C7; Mon, 14 Aug 2023 15:47:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1692028052; bh=t1R8otRM3E6EZ1Itt7NVpdWmmwTSamBHRUIDFtKrf0k=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=q/ndevMRJb5n5ncJkJ3CYnQYNdkZV0xZH25Y/IgZp7pjuX9n8HoAGDXd76z9630mC uAYYgjI8Eiwzx48ahKOAc1kGVfLcLQPBDUz11ZkPEIrnIVRuaYk9S28lA3/NIBaayn R0sbNwHn2V5H/zFmRe8gMiMqeY5Uu89wbSM9Vl5cgsErf2Xg4zylY4zS6nP/JOk3/f ciVqZp+KUbnJ5pVVyk1cEZUmxRq+z+1ShDl46yOsW9HRQa8FqFbk9C3BOk87+8WNP1 mAfwj1+ZvWWZIpUaHe02+FKGB0J0oANBaHDrtFV5jlkjq/H83j+SzrSLI02pdtUYKg 8PCWesEzXvi1Q== Date: Mon, 14 Aug 2023 08:47:30 -0700 From: Nathan Chancellor To: Peter Xu , lkp@intel.com Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Andrew Morton , Linux Memory Management List , "Huang, Ying" Subject: Re: Cannot find symbol for section 69: .text.arch_max_swapfile_size. Message-ID: <20230814154730.GA3072@dev-arch.thelio-3990X> References: <202308120906.Efohswpa-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 22E5F40013 X-Stat-Signature: 99j6pdk3jc7jaiaw9zyngjsmnctj7a56 X-Rspam-User: X-HE-Tag: 1692028053-162903 X-HE-Meta: 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 ZbZ0RLKg 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 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, Aug 14, 2023 at 11:38:18AM -0400, Peter Xu wrote: > On Sat, Aug 12, 2023 at 09:11:33AM +0800, kernel test robot wrote: > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > > head: 190bf7b14b0cf3df19c059061be032bd8994a597 > > commit: be45a4902c7caa717fee6b2f671e59b396ed395c mm/swap: cache maximum swapfile size when init swap > > date: 11 months ago > > config: mips-randconfig-r014-20230811 (https://download.01.org/0day-ci/archive/20230812/202308120906.Efohswpa-lkp@intel.com/config) > > compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) > > reproduce: (https://download.01.org/0day-ci/archive/20230812/202308120906.Efohswpa-lkp@intel.com/reproduce) > > > > If you fix the issue in a separate patch/commit (i.e. not just a new version of > > the same patch/commit), kindly add following tags > > | Reported-by: kernel test robot > > | Closes: https://lore.kernel.org/oe-kbuild-all/202308120906.Efohswpa-lkp@intel.com/ > > > > All errors (new ones prefixed by >>): > > > > >> Cannot find symbol for section 69: .text.arch_max_swapfile_size. > > mm/swapfile.o: failed > > Hmm.. I don't really know what's the issue here, neither can I reproduce > this locally - the cross build seems to all work with the reproducer and I > can see mm/swapfile.o correctly generated. This is https://github.com/ClangBuiltLinux/linux/issues/1830 and https://github.com/ClangBuiltLinux/linux/issues/981, which is a bug in recordmcount with regards to section symbols that occurs when building with clang's integrated assembler. It happens when the there are only weak symbols in a .text section, which occurs more often with MIPS due to LD_DEAD_CODE_DATA_ELIMINATION implying -ffunction-sections (i.e., any __weak symbol will trigger this) and I can see this randconfig setting it. Unfortunately, the robot seems to have tripped over this a lot over the weekend :/ Intel folks, can this type of warning please be added to your filter for at least MIPS + LD_DEAD_CODE_DATA_ELIMINATION so that people don't get bothered? https://lore.kernel.org/202308121810.APAJIBxn-lkp@intel.com/ https://lore.kernel.org/202308121535.otQuZept-lkp@intel.com/ https://lore.kernel.org/202308121810.APAJIBxn-lkp@intel.com/ https://lore.kernel.org/202308121246.0TYkHC1K-lkp@intel.com/ https://lore.kernel.org/202308120553.IRzzfaXL-lkp@intel.com/ https://lore.kernel.org/202308111956.QRc8XJVr-lkp@intel.com/ Cheers, Nathan