Heinz Christian wrote:
> > > From: Mike Bilow[SMTP:[EMAIL PROTECTED]]
> > > The aic7xxx driver really does not like to share an IRQ.
> Have you enabled the MP-APIC-Support?
>
> We have several machines each with 5 or more AIC7xxx channels with APIC
> enabled on the same (legacy)-IRQ - no problems.
IO-APIC support helps by making more virtual IRQs available. However,
there is a substantial difference between sharing an IRQ among several
aic7xxx boards, which are all handled by the same driver, and sharing
the IRQ among the aic7xxx driver and another driver. It is the latter
case, not the former, which is problematic. If at all possible, the
aic7xxx driver should own its IRQ exclusively, even when IO-APIC is in
use. (Of course, when IO-APIC is in use, there is little reason for an
IRQ to need to be shared.)
-- Mike
