From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752912AbcFCVzl (ORCPT ); Fri, 3 Jun 2016 17:55:41 -0400 Received: from mail.kernel.org ([198.145.29.136]:38416 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752586AbcFCVzj (ORCPT ); Fri, 3 Jun 2016 17:55:39 -0400 Date: Fri, 3 Jun 2016 18:55:34 -0300 From: Arnaldo Carvalho de Melo To: Peter Zijlstra Cc: Ingo Molnar , Jiri Olsa , David Ahern , Namhyung Kim , Wang Nan , Andi Kleen , Linux Kernel Mailing List Subject: Re: perf crash with tip/perf/core Message-ID: <20160603215534.GA8679@kernel.org> References: <20160603211515.GC3095@kernel.org> <20160603212740.GA2963@kernel.org> <20160603213705.GC3710@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160603213705.GC3710@twins.programming.kicks-ass.net> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.6.1 (2016-04-27) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Fri, Jun 03, 2016 at 11:37:05PM +0200, Peter Zijlstra escreveu: > On Fri, Jun 03, 2016 at 06:27:40PM -0300, Arnaldo Carvalho de Melo wrote: > > Em Fri, Jun 03, 2016 at 06:15:15PM -0300, Arnaldo Carvalho de Melo escreveu: > > > Hi Peter, > > > > > > I built what is in tip/perf/core to test the topdown patches > > > from Andi but it is crashing on me, 'perf stat' was ok, but then I tried > > > 'perf trace' and got the NULL deref below, bet 'perf record' will do the same. > > > > Yeah, just tried with 'perf record usleep 1' and got: > > Does > > lkml.kernel.org/r/1464809585-66072-1-git-send-email-davidcc@google.com > > fix it? yeap, thanks, fwiw: Tested-by: Arnaldo Carvalho de Melo - Arnaldo