Re: [Xenomai-help] Is it compulsory to apply the PREEMPT_RT patch (to Linux) when running Xenomai on the top of it?

[Philippe Gerum <rpm@xenomai.org>]

On 04/03/2012 09:17 AM, Philippe Gerum wrote:
> On 04/03/2012 08:56 AM, Anisha Kaul wrote:
>> Greetings,
>>
>>> From "Life with Adeos":
>> http://www.xenomai.org/documentation/branches/v2.3.x/pdf/Life-with-Adeos-rev-B.pdf
>>
>>
>>> Both the real­time nucleus and the Linux kernel should handle the
>>> case where a high priority thread is kept from running because a low
>>> priority one holds a contended resource> for a possibly unbounded
>>> amount of time. Xenomai provides this support, but only the
>>> PREEMPT_RT variant does so for the Linux kernel. For this reason,
>>> Xenomai keeps an
>>> eye and provides support for the current developments of PREEMPT_RT,
>>> albeit the mainline kernel still remains the system of reference for
>>> now.
>>
>>
>> I don't understand whether the above quote implies that it necessary
>> to apply the PREEMPT_RT patch (to Linux) when working with Xenomai on
>> Linux?
>> Please guide.
>>
>
> No.

I mean: this is not implied, and you don't need _RT (actually, to have 
it, you would need a specific interrupt pipeline patch).

>
>> -Anisha
>>
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>> Xenomai-help@domain.hid
>> https://mail.gna.org/listinfo/xenomai-help
>>
>
>


-- 
Philippe.