[kbuild-all] [mark-rutland:arm64/entry/rework 15/19] ld.lld: error: undefined symbol: panic_bad_stack

tree: https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git arm64/entry/rework head: f54a34213461d3ba79a403326ecd240a542ce18c commit: 0d816ab5ed4e7145667083a1deaf5a596f612860 [15/19] arm64: entry: split bad stack entry config: arm64-randconfig-r005-20210519 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8e93d10633d751a3e9169bf9fa68326925ffa097) 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 arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git/commit/?id... git remote add mark-rutland https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git git fetch --no-tags mark-rutland arm64/entry/rework git checkout 0d816ab5ed4e7145667083a1deaf5a596f612860 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org