Re: [Xenomai] xenomai 3.0rc4 rt_heap_alloc replies with timeout

["Stéphane ANCELOT" <sancelot@free.fr>]

right. This is fixed using create size >= 2048 bytes.


On 06/05/2015 10:56, Philippe Gerum wrote:
> On 05/05/2015 03:37 PM, Stéphane ANCELOT wrote:
>> Hi,
>> unfortunately, There is something wrong for unknown reason using these
>> functions.
>>
>> I made a simple regression program that only create heaps and allocates
>> area.
>>
>> At line 190 of the file, depending on the size value of the heap, the
>> program works or not.
>> This looks like corrupted memory problem...
>>
> The API tells you what happens, it's just that you did not pay attention
> to return codes:
>
> 	flags = H_FIFO ;
> 	size = 36800;
> 	size = 824; // size = 824 is failing but changing size to 3200 rocks ...
> 	ret = rt_heap_create(&heap2, "config", size, flags);
>
> This returns -EINVAL, which is documented for rt_heap_create() as:
>
>   * - -EINVAL is returned if @a mode is invalid, or @a heapsz is not in
>   * the range [2k..2Gb].
>
> Besides, your test code never deletes the heaps it creates, before
> overwriting the same heap descriptor with the next call to
> rt_heap_create(). Hopefully your application does not do that.
>
> I'm unsure to understand your reasoning about memory corruption.
>