reproduce (this is a W=1 build):
        git checkout 3f9f0252130e7dd60d41be0802bf58f6471c691d
        b4 shazam https://lore.kernel.org/r/20251203072844.484893-3-ebiggers@kernel.org

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash