From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751386AbcJGEE6 (ORCPT ); Fri, 7 Oct 2016 00:04:58 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:48100 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750701AbcJGEEs (ORCPT ); Fri, 7 Oct 2016 00:04:48 -0400 Date: Fri, 7 Oct 2016 05:56:49 +0200 From: Greg Kroah-Hartman To: Laura Abbott Cc: Rob Herring , Arnd Bergmann , Linux Kernel Mailing List Subject: Re: CONFIG_DEBUG_TEST_DRIVER_REMOVE needs a warning Message-ID: <20161007035649.GA17183@kroah.com> References: <120f00f2-94b6-aead-7bb4-9917bc338660@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <120f00f2-94b6-aead-7bb4-9917bc338660@redhat.com> User-Agent: Mutt/1.7.0 (2016-08-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 06, 2016 at 04:53:20PM -0700, Laura Abbott wrote: > 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. Yes, we knew it was going to find bugs, you were brave :) > 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. Care to send a patch with the wording change you would have found better to warn yourself not to do this? thanks, greg k-h