[Xenomai] Unexpected CPU assignment on iMX6Q

["Javier Martínez Cantos" <jmartinez@ixion.es>]

Hi everybody,

I'm currently working on Toradex Apalis iMX6Q (4 cores) with Xenomai 
2.6.4. The system runs fine.

However, I'm playing around with rt_task_create and T_CPU obtaining the 
following results:

- T_CPU(0-3) leads to task creation on expected core, i.e. 1 to 4,

- while T_CPU(>3) leads to task creation always on first core.

Affinity is configured as follows:

cat /proc/xenomai/affinity
0000000f

I expect rt_task_create to return an EINVAL error or something like that 
when T_CPU is higher than RTHAL_NR_CPUS - 1.

Could RTHAL_NR_CPUS has a value higher than 4? How can I check this? I 
have already checked that CONFIG_NR_CPUS is 4.

On runtime, how can I query the "task to core assignment" through 
Xenomai API?

Thanks in advance.

-- 


Javier Martínez Cantos

Sistemas embarcados



	

Julián Camarillo, 21 B, 3ª Planta 28037 Madrid, España

	

(+34) 91 440 18 33

	

jmartinez@ixion.es

	

http://www.ixion.es <http://www.ixion.es/>

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-- 


Javier Martínez Cantos

Sistemas embarcados



	

Julián Camarillo, 21 B, 3ª Planta 28037 Madrid, España

	

(+34) 91 440 18 33

	

jmartinez@ixion.es 
<.////172.20.31.5/datos/IXION/Info_public/Logos/Nueva%2520imagen%2520corporativa/Plantillas/xxxx@ixion.es%2520>

	

http://www.ixion.es <http://www.ixion.es/>

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/This message is intended solely for its addressee. It may contain 
privileged and/or confidential information, whose disclosure is 
prohibited by law. If you have received this message in error, please do 
not read, copy or distribute it and notify the dispatcher immediately./

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