Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751411AbdHFVLC (ORCPT ); Sun, 6 Aug 2017 17:11:02 -0400 Received: from mail-wr0-f175.google.com ([209.85.128.175]:38140 "EHLO mail-wr0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751342AbdHFVLA (ORCPT ); Sun, 6 Aug 2017 17:11:00 -0400 Subject: Re: kvm_intel fails to load on Conroe CPUs running Linux 4.12 To: Sebastian Rachuj , rkrcmar@redhat.com, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org References: From: Paolo Bonzini Message-ID: Date: Sun, 6 Aug 2017 23:10:55 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 554 Lines: 14 On 05/08/2017 21:26, Sebastian Rachuj wrote: > Dear linux developers, > > since my upgrade from linux 4.11 to linux 4.12 the "kvm_intel" module > does not load correctly anymore. "Modprobing" the kernel module gives an > Input/Output error. It seems to be related to the CPU architecture and > (to my knowledge) affects Conroe CPUs. I did a bisect and found the > following commit as the guilty one: What is your cpuinfo? I tested on a Conroe Xeon X3220 (family 6, model 15, stepping 11) when I posted that patch, and it did have virtual NMIs. Paolo