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From: Thomas Schlichter <schlicht@uni-mannheim.de>
To: Wes Janzen <superchkn@sbcglobal.net>
Subject: Re: 2.6.0-test3-mm3 reserve IRQ for isapnp (2.6.0-test3-mm3 <sigh>)
Date: Thu, 21 Aug 2003 16:47:08 +0200
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On Thursday 21 August 2003 14:01, Wes Janzen wrote:
> Thanks, I was supposed to try that too, but I forgot ;-)
>
> So I tried it.  Doesn't work...  It does change the IRQ assignments, but
> I don't think there would be any hope of it running without ACPI.  Isn't
> ACPI required for IRQ sharing?  If not then it might work.

No, ACPI is not required for interrupt sharing... So it might work ;-)

> It uses 6 IRQ's just between the IDE and USB...the thing's stuffed with
> cards.  Add video, SB16, 2 serial ports, parallel...well, you get the
> idea.
>
> Now if VIA would have made it correctly in the first place...
>
> Wes

Have you tried my patch? I'm running a kernel with this patch, ACPI enabled 
and "pci=noacpi". 16 IRQ's won't be enough for me, too, as you can see here:

           CPU0
  0:     348795    IO-APIC-edge  timer
  1:        627    IO-APIC-edge  i8042
  2:          0          XT-PIC  cascade
  4:          5    IO-APIC-edge  serial
  8:          2    IO-APIC-edge  rtc
  9:          0    IO-APIC-edge  acpi
 14:      12240    IO-APIC-edge  ide0
 15:         11    IO-APIC-edge  ide1
 16:      31827   IO-APIC-level  nvidia
 17:       1461   IO-APIC-level  eth0
 18:          4   IO-APIC-level  bttv0
 19:      13213   IO-APIC-level  EMU10K1
 21:      11567   IO-APIC-level  uhci-hcd, uhci-hcd, uhci-hcd, ehci_hcd

And everything works just fine... (despite my broken BIOS ;-)

  Thomas