reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/90081315361a629b585cf1da5cedf5e164f20397
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Tarun-Sahu/liveupdate-Add-LIVEUPDATE_GUEST_MEMFD-config-option/20260518-184146
        git checkout 90081315361a629b585cf1da5cedf5e164f20397

        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-20 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-20 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash