reproduce (this is a W=1 build):
        # https://github.com/brauner/linux/commit/f13865bcff540b64612f235534dc39663e159f5a
        git remote add brauner-github https://github.com/brauner/linux.git
        git fetch --no-tags brauner-github vfs-6.16.misc
        git checkout f13865bcff540b64612f235534dc39663e159f5a
        # 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 fs/