From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933872AbcIOHYd (ORCPT ); Thu, 15 Sep 2016 03:24:33 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:59601 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754738AbcIOHYc (ORCPT ); Thu, 15 Sep 2016 03:24:32 -0400 Date: Thu, 15 Sep 2016 09:24:25 +0200 From: Peter Zijlstra To: Stephane Eranian Cc: Vince Weaver , LKML , Alexander Shishkin , Ingo Molnar , Josh Poimboeuf Subject: Re: perf: perf_fuzzer lockup in perf_cgroup_attach Message-ID: <20160915072425.GN5008@twins.programming.kicks-ass.net> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23.1 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 14, 2016 at 10:35:49PM -0700, Stephane Eranian wrote: > On Wed, Sep 14, 2016 at 7:43 PM, Vince Weaver wrote: > > > > so the skylake that was fuzzing finally is mostly locked up. > > > > Really hard to tell what's going, especially as KASLR made looking up the > > addresses a big pain. > > > I would think there is a way to disable KASLR for this kind of testing! I always kill CONFIG_RANDOMIZE_BASE, but there's also talk of killing the address print entirely.. :-( https://lkml.kernel.org/r/20160831165303.tvcudt7wkpechuqt@treble