Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751306AbdH0HsL (ORCPT + 2 others); Sun, 27 Aug 2017 03:48:11 -0400 Received: from vps01.wiesinger.com ([46.36.37.179]:49386 "EHLO vps01.wiesinger.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750879AbdH0HsJ (ORCPT ); Sun, 27 Aug 2017 03:48:09 -0400 DKIM-Filter: OpenDKIM Filter v2.11.0 wiesinger.com v7R7loXJ017960 Subject: Re: [Qemu-devel] kvm_intel fails to load on Conroe CPUs running Linux 4.12 From: Gerhard Wiesinger To: linux-kernel@vger.kernel.org, Paolo Bonzini , qemu-devel@nongnu.org References: <35eda6a9-086e-f899-e131-288f2346effe@wiesinger.com> Message-ID: <3e1f41a8-faff-1858-6f0d-154694dff02d@wiesinger.com> Date: Sun, 27 Aug 2017 09:47:50 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-MailScanner-Information-wiesinger-com: Please contact the ISP for more information X-yoursite-MailScanner-ID: v7R7loXJ017960 X-MailScanner-wiesinger-com: Found to be clean X-MailScanner-SpamCheck-wiesinger-com: spam, JUSTSPAM, SpamAssassin (not cached, score=-0.999, required 4.5, autolearn=not spam, ALL_TRUSTED -1.00, URIBL_BLOCKED 0.00) X-yoursite-MailScanner-From: lists@wiesinger.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: On 17.08.2017 23:14, Gerhard Wiesinger wrote: > On 17.08.2017 22:58, Gerhard Wiesinger wrote: > > > > On 07.08.2017 19:50, Paolo Bonzini wrote: > > > > >Not much to say, unfortunately. It's pretty much the same capabilities > > >as a Prescott/Cedar Mill processor, except that it has MSR bitmaps. It > > >also lacks FlexPriority compared to the Conroe I had checked. > > > > > >It's not great that even the revert patch doesn't apply cleanly---this > > >is *not* necessarily a boring area of the hypervisor... > > > > > >Given the rarity of your machine I'm currently leaning towards _not_ > > >reverting the change. I'll check another non-Xeon Core 2 tomorrow that > > >is from December 2008 (IIRC). If that one also lacks vNMI, or if I get > > >other reports, I suppose I will have to reconsider that. > > Hello Paolo, > > Can you please revert the patch. > > CPU is a Core 2 Extreme QX6700: SL9UL (B3) running VERY stable with > ECC RAM for years now. > https://ark.intel.com/products/28028/Intel-Core2-Extreme-Processor-QX6700-8M-Cache-2_66-GHz-1066-MHz-FSB?q=Core%202%20Extreme%20QX6700 > > https://en.wikipedia.org/wiki/List_of_Intel_Core_2_microprocessors > > CPU details below. > > Thank you. > > Ciao, > Gerhard Hello Paolo, Any update on this major issue? Thnx. Ciao, Gerhard