> How can I get the latest 3.1 kernel source code ? Not
> the syssrc.tgz but all fixes that cam after this
> tarball.
>
>   
check out the netbsd-3-1 or the netbsd-3 branch on cvs
but of course only the sys directory
see: http://www.netbsd.org/docs/guide/en/chap-fetch.html#chap-fetch-cvs

Best Regards
Stephan