reproduce (this is a W=1 build):
        git checkout 7c626ce4bae1ac14f60076d00eafe71af30450ba
        b4 shazam https://lore.kernel.org/r/20240817050921.18462-5-kanchana.p.sridhar@intel.com
        # 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 mm/