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Subject: Re: IO-APIC on SiS P4 messes interrupts
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: devik <devik@cdi.cz>
Cc: linux-smp@vger.kernel.org,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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Date: 26 Nov 2002 14:40:07 +0000
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On Tue, 2002-11-26 at 12:21, devik wrote: 
> I used two MSI 8533 mobos for our 1U rack servers.
> These mobos are for P4 and uses SiS 5513 chipset.
> They have integrated VGA and NIC (RTL8139).
> 
> When I boot 2.4.19 or 2.4.20rc2 with IO-APIC enabled
> the NIC doesn't work. It get IRQ 18 (instead of
> IRQ 11 in non-ioapic mode) but IRQ routing is bad
> because it got no irqs at that line.

SiS IO-APICs are not supported currently. Ollie at SiS kindly provided
the relevant information to fix that so I hope to have support included
soon.

For uniprocessors just skip using the apic

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