reproduce (this is a W=1 build):
        # https://github.com/kkdwivedi/linux/commit/7b55d75d53fa4712c9c480318d248c4bf3dbe1e4
        git remote add kkdwivedi https://github.com/kkdwivedi/linux
        git fetch --no-tags kkdwivedi cna
        git checkout 7b55d75d53fa4712c9c480318d248c4bf3dbe1e4
        # 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 kernel/