reproduce (this is a W=1 build):
        git checkout 1f97d9dcf53649c41c33227b345a36902cbb08ad
        b4 shazam https://lore.kernel.org/r/20260206-feature-dynamic_isolcpus_dhei-v1-6-00a711eb0c74@gmail.com

        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=$HOME/0day COMPILER=gcc-12.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash kernel/