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Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.11.2 Subject: Re: [PATCH] mm: compaction: skip memory hole rapidly when isolating migratable pages To: kernel test robot , akpm@linux-foundation.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, mgorman@techsingularity.net, vbabka@suse.cz, david@redhat.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <8cc668b77c8eb2fa78058b3d81386ebed9c5a9cd.1686294549.git.baolin.wang@linux.alibaba.com> <202306092250.cp65gzkn-lkp@intel.com> From: Baolin Wang In-Reply-To: <202306092250.cp65gzkn-lkp@intel.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 364172000D X-Stat-Signature: wiak8w3d3trjyikm5p5yotso757hn5yo X-Rspam-User: X-HE-Tag: 1686447488-315776 X-HE-Meta: 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 RZo7pmwJ CM2q4RY1OyLyW+9oOQqAOqA40Jyezyx2/hwCXv51qysrkeRIer91p2xynQI0xX4kjiTX0PbO9b6+SMc07QMva75N604TUMZJU97efNKMHL3YOhu60QXvqKmr6iqasdnzSN6N6g/8/z4TpHZe0Ch1SBEQr+xfBC+Q+JuBy5r/OunHiQfDgxnk2prh7nogy3z6UnR16S5BJwYG7B742o0sBqx4F3OfoRiuph2jYMdWnN2LBFxzRk8WhGrqgJaufNRaw04k2HFHRg0Rc6iH8Jwhgq/S0tqUo3QklrJTlzZxR/LAErGr4MLed97Uyoc7w7JjF7UwovReFM6SU9Bo= 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 6/9/2023 10:48 PM, kernel test robot wrote: > Hi Baolin, > > kernel test robot noticed the following build errors: > > [auto build test ERROR on akpm-mm/mm-everything] > > url: https://github.com/intel-lab-lkp/linux/commits/Baolin-Wang/mm-compaction-skip-memory-hole-rapidly-when-isolating-migratable-pages/20230609-174659 > base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything > patch link: https://lore.kernel.org/r/8cc668b77c8eb2fa78058b3d81386ebed9c5a9cd.1686294549.git.baolin.wang%40linux.alibaba.com > patch subject: [PATCH] mm: compaction: skip memory hole rapidly when isolating migratable pages > config: arm-randconfig-r025-20230609 (https://download.01.org/0day-ci/archive/20230609/202306092250.cp65gzkn-lkp@intel.com/config) > compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) > reproduce (this is a W=1 build): > mkdir -p ~/bin > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # install arm cross compiling tool for clang build > # apt-get install binutils-arm-linux-gnueabi > git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git > git fetch akpm-mm mm-everything > git checkout akpm-mm/mm-everything > b4 shazam https://lore.kernel.org/r/8cc668b77c8eb2fa78058b3d81386ebed9c5a9cd.1686294549.git.baolin.wang@linux.alibaba.com > # save the config file > mkdir build_dir && cp config build_dir/.config > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=arm olddefconfig > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash > > 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/202306092250.cp65gzkn-lkp@intel.com/ > > All errors (new ones prefixed by >>): > >>> mm/compaction.c:235:27: error: call to undeclared function 'pfn_to_section_nr'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] > unsigned long start_nr = pfn_to_section_nr(start_pfn); > ^ >>> mm/compaction.c:237:6: error: call to undeclared function 'online_section_nr'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] > if (online_section_nr(start_nr)) > ^ >>> mm/compaction.c:240:19: error: call to undeclared function 'next_online_section_nr'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] > next_online_nr = next_online_section_nr(start_nr); > ^ >>> mm/compaction.c:242:10: error: call to undeclared function 'section_nr_to_pfn'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] > return section_nr_to_pfn(next_online_nr); > ^ > 4 errors generated. Thanks for report. I should provide a dummy function if CONFIG_SPARSEMEM is not selected.