What will happen is that when a true real time RTAI task is signalled by Linux you'll loose real time for an undefined time period.
POSIX API in general is not supported by the RTAI.
So, when a POSIX real time signal is sent to the
RTAI's real time task, the control gets shifted to
user space? But I think since the POSIX signals too
are the real time ones and they can be written in
the kernel module (?) .. so how can it be said that
it'll result in the soft real time?
I am not very sure of the reasons for the quote, and I
feel I am not making any sense with the above reasoning.
Please explain the point that I am missing.