Re: [Xenomai-help] Standard linux assignment of processes to CPUs depends on Xenomai Config

[Jan Kiszka <jan.kiszka@domain.hid>]

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M. Koehrer wrote:
> Hi everybody,
> 
> I just noted another very interesting thing.
> When I have the Xenomai support built directly into the kernel (no modules),
> the Linux scheduler assigns all Linux tasks to CPU 0 (I have a SMP with a Dual Core CPU).
> Using e.g. taskset I can of course force tasks to run on CPU 1 but it will not be done
> automatically.
> 
> However, when I use modules for the Xenomai stuff, the Linux scheduler assigns
> the tasks to both available CPUs...
> 
> This behaviour looks very strange to me...
> My setup: Kernel 2.6.19.2, SMP, Pentium 4 D, Xenomai 2.3. + COW patches.
> Any idea on this?!?

Mathias, mind to re-check if this behaviour persists with latest SVN
(v2.3.x and/or trunk) and I-pipe 1.7-02? If yes, please file a short bug
report to

https://gna.org/bugs/?group=xenomai

so that it doesn't get lost (we plan to manage non-trivial bug-tracking
increasingly via that channel).

I consider this a non-critical issue. Still, it has to be understood and
probably fixed.

Jan


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