reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # https://github.com/dvyukov/linux/commit/322244b2cc99d0abe2f5bf4accb08c2b895e1cd8
        git remote add dvyukov https://github.com/dvyukov/linux
        git fetch --no-tags dvyukov dvyukov-prot-kernonly
        git checkout 322244b2cc99d0abe2f5bf4accb08c2b895e1cd8
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=parisc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=parisc SHELL=/bin/bash mm/