Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030268AbWJTNFG (ORCPT ); Fri, 20 Oct 2006 09:05:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030298AbWJTNFG (ORCPT ); Fri, 20 Oct 2006 09:05:06 -0400 Received: from cantor.suse.de ([195.135.220.2]:9869 "EHLO mx1.suse.de") by vger.kernel.org with ESMTP id S1030269AbWJTNFD (ORCPT ); Fri, 20 Oct 2006 09:05:03 -0400 From: Andi Kleen To: "Allen Martin" Subject: Re: ASUS M2NPV-VM APIC/ACPI Bug (patched) Date: Fri, 20 Oct 2006 15:04:51 +0200 User-Agent: KMail/1.9.3 Cc: "Robert Hancock" , "Len Brown" , "linux-kernel" , "Daniel Mierswa" , "Andy Currid" References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200610201504.51657.ak@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1419 Lines: 38 > 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? -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/