reproduce (this is a W=1 build):
        git checkout ebaf7c9bbb1e16523d7036e7e1225ad2dfcc6482
        b4 shazam https://lore.kernel.org/r/20260911-fixes-verify-rwx-v2-1-e2cde39b6693@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 arch/x86/mm/pat/