Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932677Ab3GBU11 (ORCPT ); Tue, 2 Jul 2013 16:27:27 -0400 Received: from mail-yh0-f42.google.com ([209.85.213.42]:44845 "EHLO mail-yh0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754860Ab3GBU1X (ORCPT ); Tue, 2 Jul 2013 16:27:23 -0400 Date: Tue, 2 Jul 2013 16:32:42 -0400 (EDT) From: Vince Weaver To: Vince Weaver cc: Peter Zijlstra , linux-kernel@vger.kernel.org, Paul Mackerras , Ingo Molnar , Arnaldo Carvalho de Melo , trinity@vger.kernel.org Subject: Re: [testcase] perf: yet another fuzzer triggered crash In-Reply-To: Message-ID: References: <20130701090713.GO6626@twins.programming.kicks-ass.net> User-Agent: Alpine 2.10 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1014 Lines: 27 On Mon, 1 Jul 2013, Vince Weaver wrote: > I'm in the process of kernel bisecting this, though all I can tell you so > far is 2.6.32 is unaffected by the bug but 3.2 and later are. well, I spent 2 days bisecting between 3.1 and 3.2 (after wasting time bisecting between 3.0 and 3.1 by mistake) (also, a pox on whoever introduced that ethernet .config change between 3.1. 3.2). and of course what it gives me is a240f76165e6255384d4bdb8139895fac7988799 perf, core: Introduce attrs to count in either host or guest mode so the test case wasn't crashing because the auto-generated file was setting exclude_guest and exclude_host causing perf_event_open() to fail. If I drop setting those bits it still crashes. I guess back to the drawing board. Vince -- 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/