Hi Randy, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 9e5cff2a1315fec1da1f497714395670366506b6 commit: a730af6e3114d549555f4b130c216bad1c3aa80e [12108/15421] um: Add 2 missing libs to fix various build errors config: um-randconfig-r025-20210429 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=a730af6e3114d549555f4b130c216bad1c3aa80e 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 a730af6e3114d549555f4b130c216bad1c3aa80e # save the attached .config to linux build tree make W=1 W=1 ARCH=um If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "X86_FEATURE_XMM" [drivers/misc/altera-stapl/altera-stapl.ko] undefined! >> ERROR: modpost: "X86_FEATURE_XMM2" [drivers/misc/altera-stapl/altera-stapl.ko] undefined! --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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