Messages in this thread | | | From | Andi Kleen <> | Subject | Re: ASUS M2NPV-VM APIC/ACPI Bug (patched) | Date | Fri, 20 Oct 2006 15:04:51 +0200 |
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> Well that's the problem. The issue only existed in the nForce2 > reference BIOS (and maybe early in nForce3) but we still occasionally
Definitely some NF3 too, i've seen it on 64bit boxes.
> see shipping customer BIOSes to this day that have this same bug for > nForce5 (like M2NPV referenced in this thread). > > Probably what ASUS is doing in the M2NPV BIOS is copying the ACPI tables > from an earlier nForce2 product.
But the timer override is correct or still broken?
> Probably what needs to happen is to make the HPET check more robust and > only return 1 if HPET is present and enabled.
I think the problem is that those Asus boards also don't have a HPET table. So even though NF5 has HPET the kernel doesn't know about it and the heuristic "if HPET then NF5 and timer override ok" breaks.
I still suspect doing a "if (PCI ID from NF2 or NF3) ignore timer override" is probably the best solution right now. But I don't have a full list of PCI-IDs for NF2/NF3. Do you have one?
Ok that might still break the NF4. I assume it never needs any timer overrides so it might be safe to include it in the PCI-IDs too.
Or do you have a better proposal?
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