Date: Mon, 23 Oct 2006 21:01:29 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: gonzo@freebsd.org Cc: perforce@freebsd.org Subject: Re: PERFORCE change 107824 for review Message-ID: <20061023.210129.-135506786.imp@bsdimp.com> In-Reply-To: <4534ED30.4030500@freebsd.org> References: <200610131444.k9DEi74J035961@repoman.freebsd.org> <20061016.162545.179961016.imp@bsdimp.com> <4534ED30.4030500@freebsd.org>
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In message: <4534ED30.4030500@freebsd.org>
Oleksandr Tymoshenko <gonzo@freebsd.org> writes:
: M. Warner Losh wrote:
: > In message: <200610131444.k9DEi74J035961@repoman.freebsd.org>
: > Oleksandr Tymoshenko <gonzo@freebsd.org> writes:
: > : http://perforce.freebsd.org/chv.cgi?CH=107824
: > :
: > : Change 107824 by gonzo@gonzo_hq on 2006/10/13 14:43:46
: > :
: > : o Tweak exception handlers to conform new pmap model. Kernel map
: > : works fine, userland still in action.
: >
: > Did this code come from the NetBSD code, or was it just the idea?
: > Seems odd that these small changes would require adding a NetBSD
: > license...
: Code came from NetBSD source tree. Is there any place I can
: read license policy? I mean it's clear when to put own copyright, but
: there is no info when to put license to file with derived code.
That's hard to know. Legally, once you get into the 90-95% range, you
most likely have a whole new work (it depends, since once you get to
that point, most of the code likely is insignficant or dictated by
externalities, which isn't covered). If it is < 50%, then definitely
you need something. Between these two ends is a judgement call. Is
there any creative part to what you've included? If so, then include
the license.
Warner
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