From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1034645AbcIYXfG (ORCPT ); Sun, 25 Sep 2016 19:35:06 -0400 Received: from ipmail06.adl2.internode.on.net ([150.101.137.129]:62177 "EHLO ipmail06.adl2.internode.on.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756908AbcIYXfF (ORCPT ); Sun, 25 Sep 2016 19:35:05 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgQaABle6Fd5LJiaEGdsb2JhbABdHQYMgzwBAQEBAR6BU4ZznEoBAQEBAQEGjQqDcIZBhhgEAgKBPk0BAgEBAQEBAgYBAQEBAQEBATdAhGIBAQQ6HDMIAxgJJQ8FJQMHLYhKvg4xHoVPhR6EN1mCY4IvBZl2j16BYo4TSIwjg3yFayw0hSyCLAEBAQ Date: Mon, 26 Sep 2016 09:35:03 +1000 From: Dave Chinner To: linux-kernel@vger.kernel.org Subject: Re: [BUG, 4.8-rc7] perf: oops in intel_pmu_enable_all Message-ID: <20160925233503.GA27872@dastard> References: <20160925232245.GT340@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160925232245.GT340@dastard> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Sep 26, 2016 at 09:22:45AM +1000, Dave Chinner wrote: > Hi Folks, > > I just upgraded a test VM from 4.8-rc6 to 4.8-rc7, and went to run: > > # perf_4.7 top -g -U > > inside the VM - the kernel oops with the trace below. The perf > binary was built from a 4.7 kernel, so it's not the latest but it > still shouldn't oops the kernel. Ignore this - I thought it wasn't fixed in the latest TOT, but I fat-fingered the reset to the current head and repeated the test on 4.8-rc7. All is working properly again.... Cheers, Dave. -- Dave Chinner david@fromorbit.com