reproduce (this is a W=1 build):
        git remote add mst-vhost https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git
        git fetch mst-vhost linux-next
        git checkout mst-vhost/linux-next
        b4 shazam https://lore.kernel.org/r/232881645a5c4c05a35df4ff1f08a19ef9a02662.1705432850.git.amery.hung@bytedance.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