Queue deletion hangs

Joel Sherrill joel.sherrill at OARcorp.com
Thu Nov 10 13:25:12 UTC 2011

On 11/10/2011 07:11 AM, Gabriel Raineri wrote:
> Hi everybody!
> I'm having an issue while deleting a queue: the call to 
> rtems_message_queue_delete hangs.
> I have been debugging RTEMS code and I found that it gets stuck at 
> _Thread_Enable_dispatch() in msgqdelete.c
Do you have a test case?  This case is covered in the test suite
so there must be something different about your case.
> More details:
> - RTEMS Version: 4.99
That's not an RTEMS version number.  What version are you using?
How did you get it?
> - The task that deletes the queue is not the one that created it.
> - There is a task blocked waiting for the queue which has a higher 
> priority than the task deleting the queue.
> - I have also tried disabling interrupts before the deletion in order 
> to avoid context switching with no luck (still hangs).
> - There are no pending messages on the queue.
> - All nodes are LOCAL.
> You might be wondering why in the world I'm trying to delete a queue. 
> Well, to make a long story short, the idea behind this is to inject 
> errors into our application to see if it is reacting as expected.
> Any help will be appreciated!
> Thanks in advance!
> Cheers,
> Gabriel

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