From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Sat, 27 Jun 2015 15:09:19 +0200
From: Philippe Gerum <rpm@xenomai.org>
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Subject: Re: [Xenomai] Q on xenomai2/3 userland coexistence
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To: Michael Haberler <haberlerm@gmail.com>, xenomai <xenomai@xenomai.org>

On 06/27/2015 02:22 PM, Michael Haberler wrote:
> ATM we're sorting through the machinekit xenomai3 transition on debian
> 
> I assume that users will continue to run xenomai2 kernels for a long time, so we work towards separate (but hopefully coexisting-in-peace) packages for Xenomai2 and Xenomai3 (startup is driven by kernel autodetection, so booting a different kernel chooses the right runtime)
> 
> The libxenomai-dev and libxenomai1 in debian are all xenomai2 atm, but I assume Xenomai3 equivalents will appear eventually
> 
> I hope these will be able to co-reside on the same host?
> 
> Ideally suggesting the Xenomai3 packages would be separate, be named differently, and not supersede any installed Xenomai2 packages?
> 
> 
> (or am I blundering and I can run applications linked against the Xenomai3 libraries on a Xenomai2 kernel? my tests so far indicate - not)
> 

Not possible. Xenomai 2 uses kernel services provided by the I-pipe
compiled for legacy operation mode. Xenomai 3 wants this mode disabled.

-- 
Philippe.