RTEMS scheduler bug ?

[Sebastian Huber]

On 02/04/2019 12:59, Catalin Demergian wrote:
> Hi,
> I was able to reproduce the issue again, but it doesn't look like the 
> interrupts are enabled
> in the functions where you added Asserts in the patch. So, my changes 
> don't fix the problem.
> My analysis would have been correct if the interrupts were enabled, 
> but it looks it's not the case.
>
> Still, a problem exists somewhere .. _Chain_Append_unprotected fails 
> and the task starves as a result.
> If it's not interrupts, I have to think again what could produce the 
> failure. (any idea/hint here is welcome :) )
>
> Also, during my tests I even saw a crash (probably not related to this 
> issue). Call stack looks like this
> Thread #1 (Suspended:Signal:SIGINT:Interrupt)
>  _ARMV7M_Exception_default() at armv7m-exception-default.c:25 0x805aff0
>  <signal_handler_called>() at 0xfffffffd
>  _Configuration_Scheduler_priority_dflt() at 0x2400063c

What is signal_handler_called()?

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Sebastian Huber, embedded brains GmbH

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