reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        git remote add tj-cgroup https://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git
        git fetch tj-cgroup for-next
        git checkout tj-cgroup/for-next
        b4 shazam https://lore.kernel.org/r/172547884995.206112.808619042206173396.stgit@firesoul
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=parisc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=parisc SHELL=/bin/bash block/ kernel/cgroup/