From mboxrd@z Thu Jan 1 00:00:00 1970 From: Logan Gunthorpe Subject: Re: [Merge tag 'pci-v4.12-changes' of git] 857f864014: BUG: unable to handle kernel NULL pointer dereference at 00000000000000a8 Date: Mon, 12 Jun 2017 22:29:20 -0600 Message-ID: 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> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20170613041842.GA13308@kroah.com> Sender: linux-pci-owner@vger.kernel.org To: Greg Kroah-Hartman 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 List-Id: devicetree@vger.kernel.org On 12/06/17 10:18 PM, Greg Kroah-Hartman wrote: > What test causes so many major numbers to be allocated? Is this > in-kernel test code? Do you really have a system that requires so many > different drivers that all want a dynamic char major? This is a 0day kernel robot test. I'm not sure the motivations of its design but it seems to be similar to an allyesconfig. So all/most modules are compiled in and allocating their char device regions on boot of a qemu instance. Logan