reproduce (this is a W=1 build):
        git checkout 559e608c46553c107dbba19dae0854af7b219400
        b4 shazam https://lore.kernel.org/r/20251206-printf-kunit-printf-attr-v1-1-1682808b51d0@gmail.com

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=um olddefconfig
        make W=1 O=build_dir ARCH=um SHELL=/bin/bash fs/ocfs2/ lib/tests/