From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751523AbdKUXxk (ORCPT ); Tue, 21 Nov 2017 18:53:40 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:38560 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751476AbdKUXxj (ORCPT ); Tue, 21 Nov 2017 18:53:39 -0500 Subject: Re: Linux 4.14 - BUG: unable to handle kernel paging request at ffffffff3bbbe160 IP: audit_signal_cb+0x75/0xf0 To: Shuah Khan Cc: torvalds@linux-foundation.org, linux-kernel@vger.kernel.org References: <5f0f4166-04b3-04de-16e7-884500ad03ca@osg.samsung.com> <95bbe49c-b55e-e3d6-16af-6abc7e4bba96@canonical.com> <3303fea7-9f10-d7f1-fb01-d2e9de26173b@osg.samsung.com> From: John Johansen Organization: Canonical Message-ID: <622d2142-a68e-2115-82e8-5899be8bdba8@canonical.com> Date: Tue, 21 Nov 2017 15:53:34 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: <3303fea7-9f10-d7f1-fb01-d2e9de26173b@osg.samsung.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/21/2017 10:02 AM, Shuah Khan wrote: > On 11/21/2017 10:44 AM, John Johansen wrote: >> On 11/21/2017 08:58 AM, Shuah Khan wrote: >>> Hi John, >>> >>> I am seeing the following on my laptop. Unfortunately this is my primary >>> system and my ability to bisect might be a bit limited. The system is >>> running >>> >>> 4.14.0+ #4 SMP Tue Nov 14 19:25:58 MST 2017 x86_64 x86_64 x86_64 GNU/Linux >>> >>> on Ubuntu 17.10 base. >>> >>> Is this a known issue? Please see the dmesg excerpts below: >>> >> Its not. I'll start looking into it today >> >> Do you have any other information that you can send to me? >> >> Any particular task/work load that triggers this? >> Can you tar up your /etc/apparmor.d/ and send that to me? >> >> > > Yeah. I forgot mention that detail :) > So my first attempts to replicate have failed. Can you confirm the sha of your kernel build? If its has some none upstream patches can you provide the sha your kernel is based on. My testing so far were based on bebc6082da0a9f5d47a1ea2edc099bf671058bd4 Can you also send me your kernel config so I can better replicate your build