Jan Kiszka wrote:
> Again, the priority should not be the issue. The issue is likely that a
> pending or just being handled non-RT IRQ can stall some RT IRQ at
> hardware level. That must not happen. I-pipe rather has to log,
> acknowledge, and possibly mask that line quickly so that RT IRQs can be
> delivered again.
Thinking a bit more about my ethernet vs timer issue. If, when an
ethernet interrupt is pending, adeos is not aware that there is also a
timer interrupt pending, it will call the ethernet interrupt handler
immediately then unmask the interrupt. So, Adeos will never have a
chance to handle the timer interrupt before another ethernet interrupt
is handled. Ergo, giving the timer interrupt the highest priority is
what must be done.
--
Gilles Chanteperdrix.
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