> > What is odd is that when my 2.0.35 kernel boots, it tells me that my
> > on-board PCI ethernet device (3Com Vortex) is on IRQ 14. When the
> > 2.2.5 kernel boots, it tells me that it is on IRQ 19, and funnily enough,
> > my ethernet device doesn't work right. It sends outbound ping packets,
> > but never believes it receives any incoming frames--the classic symptom of
> > interrupts being lost.
> >
> > Does anyone have any tips on how to troubleshoot this?
>
> The 2.2 kernel tries to use the I/O APIC to do interrpt distribution. Not
> every vendor seems to get their BIOS tables right. Try using the
> "noapic" boot option
I've used 3c905 Boomerangs (different card, same "vendor", same driver)
using IO-APIC-level without problem from 2.1.96 to 2.2.5-ac6 :)
Hope that was useful,
Matt
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