On Tue, 23 Feb 1999, Peter Woit wrote:
> I seem to have figured this out. It seems that my ethernet card was
> in PCI slot 5, moving the video card to slot 5, scsi to slot 1 and
> ethernet to slot 2 seems to have fixed this.
>
> I don't know if the IO-APIC code is supposed to handle this situation.
> If not, maybe there should be a FAQ entry "expect cards in slot 5 to
> have IRQ problems with SMP".
this is not a kernel issue. Motherboards usually have slot5 reserved for
videocards only, sometimes from those slots you cannot do busmaster DMA.
Typically that slot has the same IRQ line layout as slot4, which means
you'll probably share the IRQ line with slot4.
-- mingo
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