reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # https://github.com/gourryinverse/linux/commit/85581c6ddb334a93f79f93e6c0e5fbee1b4649ae
        git remote add gourryinverse https://github.com/gourryinverse/linux
        git fetch --no-tags gourryinverse memblock_align
        git checkout 85581c6ddb334a93f79f93e6c0e5fbee1b4649ae
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=loongarch olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=loongarch SHELL=/bin/bash