Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751529AbaGaPrw (ORCPT ); Thu, 31 Jul 2014 11:47:52 -0400 Received: from mail.skyhub.de ([78.46.96.112]:49459 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750883AbaGaPru (ORCPT ); Thu, 31 Jul 2014 11:47:50 -0400 Date: Thu, 31 Jul 2014 17:47:47 +0200 From: Borislav Petkov To: Igor Mammedov Cc: linux-kernel@vger.kernel.org, x86@kernel.org, hpa@zytor.com, mingo@redhat.com, tglx@linutronix.de, pbonzini@redhat.com, kvm@vger.kernel.org, mtosatti@redhat.com Subject: Re: [PATCH 1/2] x86: AMD: mark TSC unstable on APU family 15h models 10h-1fh Message-ID: <20140731154747.GA7160@pd.tnic> References: <1406800033-13404-1-git-send-email-imammedo@redhat.com> <1406800033-13404-2-git-send-email-imammedo@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1406800033-13404-2-git-send-email-imammedo@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jul 31, 2014 at 09:47:12AM +0000, Igor Mammedov wrote: > Due to erratum #778 from > "Revision Guide for AMD Family 15h Models 10h-1Fh Processors, > Publication # 48931, Issue Date: May 2013, Revision: 3.10" > > TSC on affected processor, a core may drift under certain conditions, > which makes initially synchronized TSCs to become unsynchronized. Is this something you're seeing on a real system? If so, how do you trigger this? Thanks. -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. -- -- 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/