reproduce (this is a W=1 build):
        git checkout 5a4d42c1688c88f3be6aef46b0ea6c32694cd2b8
        b4 shazam https://lore.kernel.org/r/8f0d4a28a35b7efccc80e71101b38c82de20f6ba.1727942154.git-series.nbd@nbd.name
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash net/