Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964987Ab1FXAmi (ORCPT ); Thu, 23 Jun 2011 20:42:38 -0400 Received: from outmail021.snc4.facebook.com ([66.220.144.153]:57116 "EHLO mx-out.facebook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932659Ab1FXAmg (ORCPT ); Thu, 23 Jun 2011 20:42:36 -0400 Message-ID: <4E03DDB0.3050502@fb.com> Date: Thu, 23 Jun 2011 17:43:28 -0700 From: Arun Sharma User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.18) Gecko/20110616 Thunderbird/3.1.11 MIME-Version: 1.0 To: Frederic Weisbecker CC: David Ahern , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Using a new perf tool against an older kernel References: <4E026123.4060208@fb.com> <4E034C2C.30509@gmail.com> <4E03968A.5010008@fb.com> <20110624001100.GD8058@somewhere.redhat.com> In-Reply-To: <20110624001100.GD8058@somewhere.redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 819 Lines: 44 On 6/23/11 5:11 PM, Frederic Weisbecker wrote: > > I'm confused, you first said it happens with new tools on older kernel. > > Can you tell us which combination of kernel/user raises the error? and > which error. > perf-3.0 + 2.6.38 perf record -agR gives: Can't find id 9's machine Found 1 unknown events! perf-3.0 + 2.6.32 perf record -ag perf script samples have bogus timestamps perf-3.0 + 2.6.32 perf record -agR perf script error: Samples do not contain timestamps perf-3.0 + any kernel perf record -agT perf script is happy everywhere. Thanks! -Arun -- 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/