tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable head: df3ae4347aff9be1e9763ffa3b1015fca348bfbd commit: 676a3befc9bac1179f6a160ffe059c11e831a32c [129/143] mm/vmstat: use xchg in cpu_vm_stats_fold config: arm-randconfig-r014-20230302 (https://download.01.org/0day-ci/archive/20230304/202303042241.YDVOTOi1-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/commit/?id=676a3befc9bac1179f6a160ffe059c11e831a32c git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git git fetch --no-tags akpm-mm mm-unstable git checkout 676a3befc9bac1179f6a160ffe059c11e831a32c # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303042241.YDVOTOi1-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): arm-linux-gnueabi-ld: arm-linux-gnueabi-ld: DWARF error: could not find abbrev number 735699 mm/vmstat.o: in function `cpu_vm_stats_fold': >> vmstat.c:(.text+0x1c28): undefined reference to `__bad_xchg' >> arm-linux-gnueabi-ld: vmstat.c:(.text+0x1ca0): undefined reference to `__bad_xchg' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
