From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936317AbcJFXxb (ORCPT ); Thu, 6 Oct 2016 19:53:31 -0400 Received: from mail-io0-f171.google.com ([209.85.223.171]:34109 "EHLO mail-io0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935057AbcJFXxY (ORCPT ); Thu, 6 Oct 2016 19:53:24 -0400 To: Rob Herring , Arnd Bergmann , Greg Kroah-Hartman Cc: Linux Kernel Mailing List From: Laura Abbott Subject: CONFIG_DEBUG_TEST_DRIVER_REMOVE needs a warning Message-ID: <120f00f2-94b6-aead-7bb4-9917bc338660@redhat.com> Date: Thu, 6 Oct 2016 16:53:20 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On a whim, I decided to turn on CONFIG_DEBUG_TEST_DRIVER_REMOVE on Fedora rawhide since it sounded harmless enough. It spewed warnings and panicked some systems. Clearly it's doing its job well of finding drivers that can't handle remove properly and I underestimated it. I was expecting to maybe find a driver or two. Can we get stronger Kconfig text indicating that this shouldn't be turned on lightly? I'll be turning the option off in Fedora but sending out reports from what was found. Thanks, Laura