reproduce (this is a W=1 build):
        git remote add drm-xe https://gitlab.freedesktop.org/drm/xe/kernel.git
        git fetch --no-tags drm-xe drm-xe-next
        git checkout 80ccbd97ffee8ad2e73167d826fe7be548364365

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=um olddefconfig
        make W=1 O=build_dir ARCH=um SHELL=/bin/bash