Virally licensed code in FreeBSD kernel

Philipp Wuensche cryx-freebsd at
Sat Apr 14 13:33:21 UTC 2007

Brett Glass wrote:
> I just read with some concern the announcement that Sun's ZFS has been
> integrated into the FreeBSD kernel. This would mean, unfortunately, that
> FreeBSD is now covered by the CDDL, which is a viral license similar to
> the GPL. Has FreeBSD abandoned its longstanding practice of keeping the
> kernel truly free?

Maybe this blog entry brings some light:

I don't see a problem. If you use CDDL licensed stuff like ZFS, you need
to provide the source, thats it.


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