Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752297AbaFDW3E (ORCPT ); Wed, 4 Jun 2014 18:29:04 -0400 Received: from mga11.intel.com ([192.55.52.93]:41528 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752241AbaFDW3C (ORCPT ); Wed, 4 Jun 2014 18:29:02 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.98,975,1392192000"; d="scan'208";a="542598853" Date: Wed, 4 Jun 2014 15:28:57 -0700 From: Andi Kleen To: Stephane Eranian Cc: linux-kernel@vger.kernel.org, peterz@infradead.org, mingo@elte.hu, jolsa@redhat.com, zheng.z.yan@intel.com, maria.n.dimakopoulou@gmail.com Subject: Re: [PATCH 0/9] perf/x86: implement HT counter corruption workaround Message-ID: <20140604222857.GB16855@tassilo.jf.intel.com> References: <1401917658-26065-1-git-send-email-eranian@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1401917658-26065-1-git-send-email-eranian@google.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 > There is no HW or FW workaround for this problem. Actually there is for global measurements: measure with Any bit set and divide by two. Please add a check that the any bit is set, and disable the workaround for that case. -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/