reproduce (this is a W=1 build):
        # https://github.com/amir73il/linux/commit/e01a54da66bb15db70e9c68e9c4fcfd458fab424
        git remote add amir73il https://github.com/amir73il/linux
        git fetch --no-tags amir73il user_path_file
        git checkout e01a54da66bb15db70e9c68e9c4fcfd458fab424

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash fs/overlayfs/ net/netfilter/