From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754641Ab2GIOvh (ORCPT ); Mon, 9 Jul 2012 10:51:37 -0400 Received: from mx1.redhat.com ([209.132.183.28]:8770 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754549Ab2GIOvf (ORCPT ); Mon, 9 Jul 2012 10:51:35 -0400 Message-ID: <4FFAEFF1.9000706@redhat.com> Date: Mon, 09 Jul 2012 17:51:29 +0300 From: Avi Kivity User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120605 Thunderbird/13.0 MIME-Version: 1.0 To: Peter Zijlstra CC: David Ahern , Gleb Natapov , LKML Subject: Re: perf with precise attribute kills all KVM based VMs References: <4FFAE6D8.5050609@gmail.com> <20120709141904.GC7298@redhat.com> <1341843844.3462.75.camel@twins> <4FFAED16.7050204@redhat.com> <4FFAEF13.7010108@gmail.com> <1341845396.3462.81.camel@twins> In-Reply-To: <1341845396.3462.81.camel@twins> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/09/2012 05:49 PM, Peter Zijlstra wrote: > On Mon, 2012-07-09 at 08:47 -0600, David Ahern wrote: >> >> I found this testing changes to perf-kvm, but found the problem extends >> to just perf-record. With perf-record exclude_guest defaults to 1. See >> tools/perf/util/util.c, event_attr_init(). > > You lost me there.. so perf-record defaults to exclude_guest=1 (which > would make the proposed patch I just send actually possible), but its > still going *bang* ? It's possible that the DS writes overshoot the MSR... or that there's a bug somewhere. -- error compiling committee.c: too many arguments to function