[coreboot] IRQ 9 on s2895 and s2892

Myles Watson mylesgw at gmail.com
Wed Mar 11 18:55:50 CET 2009

On Wed, Mar 11, 2009 at 11:32 AM, Myles Watson <mylesgw at gmail.com> wrote:
> On Wed, Mar 11, 2009 at 11:29 AM, Rudolf Marek <r.marek at assembler.cz> wrote:
>>> I'm assuming that since I have the problem on my Tyan s2895 and s2892,
>>> and they have different superIOs that that's not the problem.  What do
>>> you think?
>> Ok then. But it is worth to check if there is no misconfiguration. The IRQ
>> regs are on std places.
> OK.  I'll compare superiotool output from factory and Coreboot.
>>> Ah.  I'm sorry I think you've tried to tell me this multiple times but
>>> I've missed it.  You're saying that the IRQ is getting sent to two
>>> different IRQs and one of them has a handler, but the other doesn't?

I booted again, and IRQ9 has 10x the interrupts as any other source.
I guess that means it's not a shared one?

>> Yes thats what I think. Second option is that it is something else like some
>> nVidia ACPI timer, but this is unlikely becuase we would have seen this
>> before the changes.
>> Maybe you can boot orig coreboot sources and see what device listens on IRQ
>> 9 ;)
> Sure.  I'll try that too.

Won't I have to add IRQ 9 to the mptable?  Will it find it otherwise?

> Thanks,
> Myles

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