reproduce (this is a W=1 build):
        git checkout 6a7c3c2606105a41dde81002c0037420bc1ddf00
        b4 shazam https://lore.kernel.org/r/20250522060549.2882444-1-xin@zytor.com
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kernel/