Re: [Xenomai-help] Meassage Queue c++

[Stephan Zimmermann <s.zimmermann@domain.hid>]

Jan Kiszka wrote:

> Some further things to try before giving C++ up - and maybe stumbling
> over the same issue with C:
I tryed out xenomai queues in plain C, works perfekt.

>  o Did you mlockall() your program? If not, lazy-mapped pages may cause
>    SEGFAULTS in the RT domain which will kill your program.
I call "mlockall(MCL_CURRENT | MCL_FUTURE);" as one of the first things in 
main();
>  o Does your kernel log contain any hints of Xenomai about what's going
>    on?
No, ist does not contain anything

>  o Try running your program inside a debugger to catch the fault and its
>    location. When your system is head-less, use gdbserver.
I tryed debugging, I singlestepped through it and learned that it crashes when 
calling rt_queue_recv(), but I can not tell why.

maybe it is because I do the "bind-thing" in the constructor, resulting in 
multiple objects of RT_QUEUE referring to the same queue.

Stephan