spurrious interrupt problem
gallatin at cs.duke.edu
Wed Sep 1 17:33:21 PDT 2004
John Baldwin writes:
> On Friday 27 August 2004 06:47 pm, Nate Lawson wrote:
> > I don't see anything wrong with your acpi pci link routing. In fact,
> > all your irqs are hardwired meaning acpi shouldn't touch them. This
> > must be something with ioapic. (BTW, acpi is non-optional on amd64).
> Talk to phk at . He had an opteron motherboard that had a busted BIOS that left
> the links between PCI IRQs that are used in atpic mode setup even when in
> apic mode so that you get 'alias' IRQs in apic mode. In his case the vendor
> provided a BIOS update that fixed the issue.
I had our onsite guy update the bios, but that ended up disabling USB.
So its "fixed".. ;)
More information about the freebsd-current