Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753499AbdFMQZt (ORCPT ); Tue, 13 Jun 2017 12:25:49 -0400 Received: from ale.deltatee.com ([207.54.116.67]:50676 "EHLO ale.deltatee.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751768AbdFMQZr (ORCPT ); Tue, 13 Jun 2017 12:25:47 -0400 To: Greg Kroah-Hartman References: <5933fe2d.V33ODGPU9noDVuyF%fengguang.wu@intel.com> <20170606175552.GA12672@bhelgaas-glaptop.roam.corp.google.com> <20170612200852.GA28578@bhelgaas-glaptop.roam.corp.google.com> <61e11e67-6c1b-ef1e-5fb8-a7c9efb17666@deltatee.com> <20170613041842.GA13308@kroah.com> <20170613043416.GB14217@kroah.com> <20170613043518.GA14621@kroah.com> Cc: Bjorn Helgaas , kernel test robot , Linus Torvalds , LKP , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-doc@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Bjorn Helgaas , wfg@linux.intel.com, Alan Cox , Arnd Bergmann , Linus Walleij , David Airlie , David Herrmann , Daniel Vetter From: Logan Gunthorpe Message-ID: <8462abee-0a7f-00fb-6111-1f78362ea3f7@deltatee.com> Date: Tue, 13 Jun 2017 10:25:40 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: <20170613043518.GA14621@kroah.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 172.16.1.111 X-SA-Exim-Rcpt-To: daniel.vetter@ffwll.ch, dh.herrmann@gmail.com, airlied@linux.ie, linus.walleij@linaro.org, arnd@arndb.de, alan@linux.intel.com, wfg@linux.intel.com, bhelgaas@google.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-doc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, lkp@01.org, torvalds@linux-foundation.org, fengguang.wu@intel.com, helgaas@kernel.org, gregkh@linuxfoundation.org X-SA-Exim-Mail-From: logang@deltatee.com Subject: Re: [Merge tag 'pci-v4.12-changes' of git] 857f864014: BUG: unable to handle kernel NULL pointer dereference at 00000000000000a8 X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on ale.deltatee.com) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 504 Lines: 13 On 12/06/17 10:35 PM, Greg Kroah-Hartman wrote: > Or better yet, just turn all char major allocations into dynamic, which > would be really good for test systems. I thought someone proposed > patches for that a long time ago, but I can't find them anymore. That > would be the simplest solution here. Would people not complain about that? I would not be surprised if some crazy application is using hard coded major numbers in userspace. So such a change could potentially break userspace... Logan