Re: [Xenomai-help] rt_task_delete trouble

[Johann Obermayr <johann.obermayr@domain.hid>]

Am 11.03.2011 09:58, schrieb Jan Kiszka:
> On 2011-03-11 09:51, Gilles Chanteperdrix wrote:
>> Johann Obermayr wrote:
>>> void task_waiter_do(void *data)
>>> {
>>>       rt_printf("task_waiter_do started\n");
>>>       while(task_waiter_flag == 0)
>>>           ; // rt_task_sleep( DELAYMS(1) );
>>>       rt_printf("task_waiter_do finished\n");
>>> }
>> What happens if you uncomment the rt_task_sleep here ?
>>
> Given how often users make this mistake, should we enable the watchdog
> by default?
>
> Jan
>
We have a watchdog, and your watchdod-task suspend the user-task 
(task_waiter_do).
the sample show this problem.
The task_worker_do is a watchdog. he control some other 'user-task'.
In your project, the watchdog startup the watchdog-task.
the task_worker_do suspend the user-task.
the task_worker_do will delete the user-task.

if the user-task have only while(1); than the machine will hang.
if the user-task have in the while a sleep or other function,
the task_worker_do can delete the task_waiter, and all work correct.

   Jimmy

-- 
Mit freundlichen Grüßen, best regards
     Johann Obermayr

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