reproduce (this is a W=1 build):
        git checkout 8a30aeb0d1b4e4aaf7f7bae72f20f2ae75385ccb
        b4 shazam https://lore.kernel.org/r/20260319-gfp64-v1-5-2c73b8d42b7f@google.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=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=m68k olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash lib/