Re: RT patch acceptance

Esben Nielsen
2005-06-01T15:03:07Z

On Wed, 1 Jun 2005, Andrea Arcangeli wrote:

> On Wed, Jun 01, 2005 at 04:32:02PM +0200, Andrea Arcangeli wrote:
> > years of doing that in linux. I'm not a lawyer but you may want to
> > check before investing too much on this for the next 15 years. The
>
> Here's a link that may be of interest:
>
> http://www.fsmlabs.com/openpatentlicense.html
> http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/search-bool.html&r=12&f=G&l=50&co1=AND&d=ptxt&s1=5,995,745&OS=5,995,745&RS=5,995,745
>
preempt RT doesn't use the described method. Thus no infringement.

> This means all preempt-RT users are forced to release all their userland
> code that runs with RT prio as GPL (not just the preempt-RT kernel
> patch). This is not the case with RTAI. This will expire in a matter of
> about 15 years so it's not too bad, and I was approximative when I've
> said preempt-RT infringe on the patent. You Ingo are perfectly safe,
> it's only the preempt-RT users that will infringe unless all their RT
> code is GPL'd.
>
> This is JFYI.
>

Maybe you should get yourself a job as FUD'er? You surely have the
qualifications jumping to conclusions like that.
Ok, now you are FUD'ing on behalf on RTAI, but that doesn't make any less
disgracefull.

Esben