reproduce (this is a W=1 build):
        git checkout fac04efc5c793dccbd07e2d59af9f90b7fc0dca4
        b4 shazam https://lore.kernel.org/r/20241213164811.2006197-7-tabba@google.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