Re: [Xenomai] Xenomai 3: smokey test sched_tp causes oops when run in gdb

[Jan Kiszka <jan.kiszka@siemens.com>]

On 2015-03-16 20:41, Philippe Gerum wrote:
> On 03/16/2015 08:35 PM, Jan Kiszka wrote:
>> On 2015-03-16 20:24, Philippe Gerum wrote:
>>> On 03/16/2015 06:16 PM, Jan Kiszka wrote:
>>>> Don't understand the reason for this multiple calls in details yet, but
>>>> you can also trigger the bug by invoking pthread_setschedparam_ex twice
>>>> in smokey's sched-tp.c. Fix pushed to for-forge.
>>>>
>>>
>>> This is what has to be fixed, because guarding would only paper over the
>>> issue for TP, but the latter would bite the same way with other existing
>>> or future policies.
>>
>> You mean push the guard into xnsched_set_policy, e.g.?
>>
> 
> Or fix what might be a signal restart issue so that we don't end up
> twice in xnsched_set_policy().

Again, already calling pthread_setschedparam_ex twice in a row on the
same thread triggers the bug. There is no way around such a guard.

Jan

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