Re: [PATCH v2] x86: Don't allow nr_irqs > NR_IRQS

From: Ingo Molnar
Date: Thu Nov 06 2008 - 04:03:56 EST



* Ben Hutchings <bhutchings@xxxxxxxxxxxxxx> wrote:

> On Wed, 2008-11-05 at 22:11 +0300, Cyrill Gorcunov wrote:
> [...]
> > Ben I didn't manage to get a look over ACPI related changes
> > (ie to find the reason why the kernel is able to reveal 5 IO-APICs
> > now
> [...]
>
> I was mistaken; that *isn't* a recent change. A default RHEL 5
> kernel (based on 2.6.18) also finds 5 IOAPICs.

yes - it's simply a box with a lot of IO-APICs. That's not bad at all,
it spreads out IRQ processing amongst devices.

Ingo
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