rtems_task_resume within ISR

Till Straumann strauman at slac.stanford.edu
Thu Oct 16 21:14:16 UTC 2008


What architecture / BSP?




Tobias Schoofs wrote:
> Hi,
>
> I want an ISR to activate an error handler process on certain faults. I
> assumed that the following simple code would activate the error handler
> (which is the process with the highest priority, but normally suspended)
> AFTER the completion of the ISR:
>
> rtems_isr fault(rtems_vector_number vector) {
>     rtems_task_resume(eh_id); // eh_id is the error handler
>     /* do some other stuff */
>     return;
> }
>
> But it seems that the error handler (eh_id) becomes immediately ready
> and starts execution BEFORE the ISR termates. Is there anything wrong
> with my code?
>
> Thanks,
>
> Tobias
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