On 01/25/2012 06:10 PM, Jan Kiszka wrote:
> On 2012-01-25 18:02, Gilles Chanteperdrix wrote:
>> On 01/25/2012 05:52 PM, Jan Kiszka wrote:
>>> On 2012-01-25 17:47, Jan Kiszka wrote:
>>>> On 2012-01-25 17:35, Gilles Chanteperdrix wrote:
>>>>> On 01/25/2012 05:21 PM, Jan Kiszka wrote:
>>>>>> We had two regressions in this code recently. So test all 6 possible
>>>>>> SIGDEBUG reasons, or 5 if the watchdog is not available.
>>>>>
>>>>> Ok for this test, with a few remarks:
>>>>> - this is a regression test, so should go to
>>>>> src/testsuite/regression(/native), and should be added to the
>>>>> xeno-regression-test
>>>>
>>>> What are unit test for (as they are defined here)? Looks a bit
>>>> inconsistent.
>>
>> I put under "regression" all the tests I have which corresponded to
>> things that failed one time or another in xenomai past. Maybe we could
>> move unit tests under regression.
>>
>>>>
>>>>> - we already have a regression test for the watchdog called mayday.c,
>>>>> which tests the second watchdog action, please merge mayday.c with
>>>>> sigdebug.c (mayday.c also allows checking the disassembly of the code in
>>>>> the mayday page, a nice feature)
>>>>
>>>> It seems to have failed in that important last discipline. Need to check
>>>> why.
>>>
>>> Because it didn't check the page content for correctness. But that's now
>>> done via the new watchdog test. I can keep the debug output, but the
>>> watchdog test of mayday looks obsolete to me. Am I missing something?
>>
>> The watchdog does two things: it first sends a SIGDEBUG, then if the
>> application is still spinning, it sends a SIGSEGV. As far as I
>> understood, you test tests the first case, and mayday tests the second
>> case, so, I agree that mayday should be removed, but whatever it tests
>> should be integrated in the sigdebug test.
>>
>
> Err... SIGSEGV is not a feature, it was the bug I fixed today. :) So the
> test case actually specified a bug as correct behavior.
>
> The fallback case is in fact killing the RT task as before. But I'm
> unsure right now: will this leave the system always in a clean state
> behind?
The test case being a test case and doing nothing particular, I do not
see what could go wrong. And if something goes wrong, then it needs fixing.
--
Gilles.
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