From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756665AbcJWVCv (ORCPT ); Sun, 23 Oct 2016 17:02:51 -0400 Received: from smtp14.openmailbox.org ([62.4.1.48]:51706 "EHLO smtp14.openmailbox.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752448AbcJWVCu (ORCPT ); Sun, 23 Oct 2016 17:02:50 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Mon, 24 Oct 2016 00:02:39 +0300 From: sonofagun@openmailbox.org To: Borislav Petkov Cc: linux-kernel@vger.kernel.org, Nikos Barkas Subject: Re: [PATCH] x86/AMD: Apply erratum 688 on machines without a BIOS fix In-Reply-To: <20161023172530.buklz6ir56dmbvu7@pd.tnic> References: <20161021164723.c5rh7kgulba2aq6i@pd.tnic> <20161021230143.4wwop3giwwuzbkpr@pd.tnic> <52b804e35d9e82a46b35409586475ee2@openmailbox.org> <20161022141229.4us4iqy7dhgulssn@pd.tnic> <1651fbd1076bc365aef52a804d1ffbad@openmailbox.org> <20161023095722.n77oefpmttzvzqqc@pd.tnic> <4b27ef7e7a256a6c9341cf182ebceef7@openmailbox.org> <20161023172530.buklz6ir56dmbvu7@pd.tnic> Message-ID: <78e7e3b73f5ad8af44710a0e104301cb@openmailbox.org> User-Agent: Roundcube Webmail/1.0.6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > In any case, I tested it on my ON-B0 box and it looked good. Good to hear but something is still wrong on my laptop as nothing worked as expected :( Since I have a working custom kernel including the fix from my original patch it was clear from boot that the last patched kernel did not touch the MSR we want to modify at all. The machine was slower compared with my kernel using the original patch. As I use the show_msr option, a quick look at the dmesg proved that easily. Nowadays that processors have many cores, I wonder if the kernel should report which CPU MSRs are displayed at dmesg. Take your time to see what is wrong, we already have one working kernel for our machine :)