Task Creation Issue

[Gedare Bloom]

Is it possible that you underallocated something other than tasks? All those
configure commands reserve some space in a shared workspace, and if for
example you have timers or more than 21 semaphores then the workspace could
be too small.

Another possibility is a bug in confdefs.h where the workspace size is
calculated. We would need more info to diagnose further, including how you
./configure RTEMS and some idea of the resources your code uses.
On Oct 6, 2011 11:04 AM, "Gabriel Raineri" <graineri at invap.com.ar> wrote:
> Hi everybody!
>
> I'm having an issue when creating tasks. The thing is that I'm receiving
> RTEMS_UNSATISFIED (not enough memory for stack/FP context) after having
> created a bunch of them.
>
> Let's dig into the details...
>
> #define CONFIGURE_MAXIMUM_TASKS 25
> #define CONFIGURE_MAXIMUM_SEMAPHORES 21
> #define CONFIGURE_MAXIMUM_MESSAGE_QUEUES 14
> #define CONFIGURE_MAXIMUM_PARTITIONS 6
> #define CONFIGURE_MAXIMUM_TIMERS 0
> #define CONFIGURE_MAXIMUM_BARRIERS 1
>
> * Tasks are being created after all other RTEMS objects (Semaphores,
> Queues, etc.).
> * After creating the task #22 and when attempting to create task #23 I
> get the aforementioned error code.
> * All tasks are created with a stack size of RTEMS_MINIMUM_STACK_SIZE
bytes.
>
> The weird thing is that if I define CONFIGURE_EXTRA_TASK_STACKS to be
> RTEMS_MINIMUM_STACK_SIZE * 5 (20480 bytes) the tasks are created without
> any problem.
>
> I think I shouldn't need to define CONFIGURE_EXTRA_TASK_STACKS. Am I
right?
>
> Am I missing something?
>
> Any help will be appreciated!
>
> Cheers,
> Gabriel
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