reproduce (this is a W=1 build):
        git remote add kvm https://git.kernel.org/pub/scm/virt/kvm/kvm.git
        git fetch kvm queue
        git checkout kvm/queue
        b4 shazam https://lore.kernel.org/r/226a836ca381824cfe17ed42be5cbf9972b09ab1.1726009989.git.ackerleytng@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 mm/