rte_service unit test failing randomly

[Mattias Rönnblom]

On 2022-10-05 21:14, David Marchand wrote:
> Hello,
> 
> The service_autotest unit test has been failing randomly.
> This is not something new.
> We have been fixing this unit test and the service code, here and there.
> For some time we were "fine": the failures were rare.
> 
> But recenly (for the last two weeks at least), it started failing more
> frequently in UNH lab.
> 
> The symptoms are linked to places where the unit test code is "waiting
> for some time":
> 
> -  service_lcore_attr_get:
> + TestCase [ 5] : service_lcore_attr_get failed
> EAL: Test assert service_lcore_attr_get line 422 failed: Service lcore
> not stopped after waiting.
> 
> 
> -  service_may_be_active:
> + TestCase [15] : service_may_be_active failed
> ...
> EAL: Test assert service_may_be_active line 960 failed: Error: Service
> not stopped after 100ms
> 
> Ideas?
> 
> 
> Thanks.

Do you run the test suite in a controlled environment? I.e., one where 
you can trust that the lcore threads aren't interrupted for long periods 
of time.

100 ms is not a long time if a SCHED_OTHER lcore thread competes for the 
CPU with other threads.