reproduce (this is a W=1 build): git clone https://github.com/intel/lkp-tests.git ~/lkp-tests # https://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git/commit/?id=1e140a96e8ce220d86926c91c3985f13ac88d816 git remote add ardb git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git git fetch --no-tags ardb for-kernelci git checkout 1e140a96e8ce220d86926c91c3985f13ac88d816 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-17 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-17 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 prepare