affinity of main thread is bound to current core

[Lange Norbert]

Hello,

I use Xenomai master on ipipe-core-4.19.60-x86-5.
I start out with an affinity mask of 0xF, in the function cobalt_init_2,  pthread_setschedparam will get called, after the syscall sc_cobalt_thread_setschedparam_ex the affinity mask will contain a single CPU (supposedly the current one).

All methods to control affinity are executed before this point (cmdline args, /proc/xenomai/affinity), so there is no working way to control it.

Kind regards, Norbert
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