Re: [Xenomai-help] RE : Native message queue and synchronisation

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

Berruer Sébastien wrote:
> Hi,
> 
>>> I include my code and hope you can point me out what I am doing wrong.
>>> I'm running a kernel 2.6.28 with Xenomai 2.4.8 on an ARM architecture
>>> (PXA255).
>>
>>Could you try Xenomai 2.4.9?
> 
> 
> 
> I did it yesterday with the version 2.4.9. But, I still issue the same
> problem with the same code.
> 
> I recently pointed out another problem: during the deletion of a task
> descriptor, I receive the error value -3 (-ESRCH). I quickly checked it
> and, that's right, she didn't appear in the /proc/registry.
> 
> May it be a registration problem for the queue, too?

Ok. Please keep 2.4.8. I did not try to reproduce the bug yet, but in the
mean time, could you try the following patch?

diff --git a/ksrc/skins/native/queue.c b/ksrc/skins/native/queue.c
index 8b7c43e..9184da6 100644
--- a/ksrc/skins/native/queue.c
+++ b/ksrc/skins/native/queue.c
@@ -228,7 +228,8 @@ int rt_queue_create(RT_QUEUE *q,

                err = xnheap_init_mapped(&q->bufpool,
                                         poolsize,
-                                        (mode & Q_DMA) ? GFP_DMA : 0);
+                                        XNARCH_SHARED_HEAP_FLAGS |
+                                        ((mode & Q_DMA) ? GFP_DMA : 0));
                if (err)
                        return err;



-- 
                                          Gilles