reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/fustini/linux.git/commit/?id=06bff4d3050a3b1c23ebe8412e5f9730deddf83d
        git remote add fustini https://git.kernel.org/pub/scm/linux/kernel/git/fustini/linux.git
        git fetch --no-tags fustini b4/ssqosid-cbqri
        git checkout 06bff4d3050a3b1c23ebe8412e5f9730deddf83d

        # 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