reproduce (this is a W=1 build): git clone https://github.com/intel/lkp-tests.git ~/lkp-tests # https://github.com/davidhildenbrand/linux/commit/9f9732a9a04b8623dfd458cc40f05a50538add7e git remote add davidhildenbrand https://github.com/davidhildenbrand/linux git fetch --no-tags davidhildenbrand virtio-mem-s390x git checkout 9f9732a9a04b8623dfd458cc40f05a50538add7e # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=s390 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash