From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753003AbbING6B (ORCPT ); Mon, 14 Sep 2015 02:58:01 -0400 Received: from casper.infradead.org ([85.118.1.10]:34407 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751302AbbING6A (ORCPT ); Mon, 14 Sep 2015 02:58:00 -0400 Date: Mon, 14 Sep 2015 08:57:48 +0200 From: Peter Zijlstra To: Vince Weaver Cc: mingo@kernel.org, linux-kernel@vger.kernel.org, acme@kernel.org, eranian@google.com, jolsa@redhat.com, alexander.shishkin@linux.intel.com Subject: Re: [RFC][PATCH 0/3] variuos perf fixes Message-ID: <20150914065748.GL18489@twins.programming.kicks-ass.net> References: <20150910161621.363774906@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Sep 13, 2015 at 07:10:56PM -0400, Vince Weaver wrote: > On Thu, 10 Sep 2015, Peter Zijlstra wrote: > > > Vince reported some fail here: > > > > lkml.kernel.org/r/alpine.DEB.2.20.1509021227380.32729@vincent-weaver-1.umelst.maine.edu > > > > These patches are the result of me trying to fix it. > > > > Compile tested only, I'll try them after a sleep.. > > Sorry for the delay testing, your e-mails continue being sent to SPAM by > gmail for some reason. > > I patched up a 4.3-rc1 system with the patches, and pretty much my > *entire* perf_event test suite causes kernel oopses. > > This is on an AMD a10 system. > > [ 1564.442224] BUG: unable to handle kernel NULL pointer dereference at 00000000000001e8 Yeah, I really should just not set out patches when I'm that tired. What's worse, I already fixed this splat once, but forgot to copy it over to the right machine etc.. Total fail.