Hi Johannes, [auto build test ERROR on v4.13] [cannot apply to mmotm/master linus/master tip/sched/core v4.14-rc1 next-20170919] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Johannes-Weiner/sched-loadavg-consolidate-LOAD_INT-LOAD_FRAC-macros/20170919-161057 config: blackfin-TCM-BF537_defconfig (attached as .config) compiler: bfin-uclinux-gcc (GCC) 6.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=blackfin All errors (new ones prefixed by >>): mm/memdelay.o: In function `memdelay_task_change': >> mm/memdelay.c:(.text+0x270): undefined reference to `__udivdi3' mm/memdelay.c:(.text+0x2e4): undefined reference to `__udivdi3' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation