>> 	since we ship userland in binary form, we need to always
>> 	enable IPv6 for userland (otherwise, users would need to
>> 	recompile the whole userland when he turns on IPv6).
>btw, since now sys_init tries to open v6 sockets and exits if failed
>to open it, the binary won't work on v4 only kernel.

	i see, i'll try to fix it.

itojun