* kernel test robot <lkp@xxxxxxxxx> [220224 02:50]: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: d4a0ae62a277377de396850ed4b709b6bd9b7326 > commit: af49aeae1748b573a3794a6283210928a9fc8d0b [6806/7915] mm: Use maple tree operations for find_vma_intersection() > config: arm-randconfig-r036-20220223 (https://download.01.org/0day-ci/archive/20220224/202202241512.jmoQhMEv-lkp@xxxxxxxxx/config) > compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e) > reproduce (this is a W=1 build): > 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 > # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=af49aeae1748b573a3794a6283210928a9fc8d0b > git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > git fetch --no-tags linux-next master > git checkout af49aeae1748b573a3794a6283210928a9fc8d0b > # save the config file to linux build tree > mkdir build_dir > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All errors (new ones prefixed by >>): > > >> ld.lld: error: undefined symbol: find_vma_intersection > >>> referenced by shm.c > >>> shm.o:(do_shmat) in archive ipc/built-in.a > nommu requires its own find_vma_intersection as this has been moved from mm.h to mmap.c > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx