Re: [Xenomai-help] IRQ issue :xnintr_irq_handler

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

Marcel Soulot wrote:
> Hi,
> 
> I wrote a driver to manage GPIO on a PCI card. This PCI card offer UART and
> GPIO.
> So when I use my GPIO driver with the IRQ10 (automatic assignment), I get
> this error message : Xenomai: xnintr_irq_handler: IRQ10 not handled.
> Disabling IRQ line.
> I program IOCTL command which wait an event. This event is released when a
> interrupt is notified on a change state from the input.
> I get my error message when I change the state of my input and want to
> provocate a interrupt.
> 
> I've made a another test; still with the same PCI card (same IRQ 10) but
> this time I load the 16550A driver and use the uart with www.captain.at test
> on writing and reading on the same uart. Everything works fine.
> 
> Can someone can explain me why I get my error ?

You get this error because no registered real-time IRQ handler is able
to handle the IRQ, very likely because you try to share an IRQ between
real-time drivers and non real-time drivers without modifying the non
real-time drivers as explained in the FAQ.

-- 
                                                 Gilles.