From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751512AbaHHTu6 (ORCPT ); Fri, 8 Aug 2014 15:50:58 -0400 Received: from mail-ie0-f174.google.com ([209.85.223.174]:47374 "EHLO mail-ie0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751020AbaHHTuy (ORCPT ); Fri, 8 Aug 2014 15:50:54 -0400 Message-ID: <53E52A1C.8010504@gmail.com> Date: Fri, 08 Aug 2014 13:50:52 -0600 From: David Ahern User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Matthieu CASTET , linux-kernel@vger.kernel.org Subject: Re: perf on biarch References: <20140808184049.65e7d32b@parrot.com> In-Reply-To: <20140808184049.65e7d32b@parrot.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 On 8/8/14, 10:40 AM, Matthieu CASTET wrote: > Hi, > > I have a 64 bits kernel running with 32 bits binaries. > If I run 32 bits perf on this 64 bits kernel 3.14, I got weird result : > > - perf trace doesn't work [1] I have patches that fix that: git clone https://github.com/dsahern/linux.git git checkout perf-full-monty And if autodetection fails you can manually force it with -M x86. David