From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757301Ab3ILU4Y (ORCPT ); Thu, 12 Sep 2013 16:56:24 -0400 Received: from terminus.zytor.com ([198.137.202.10]:40038 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755591Ab3ILU4U (ORCPT ); Thu, 12 Sep 2013 16:56:20 -0400 Message-ID: <52322A4B.9050205@zytor.com> Date: Thu, 12 Sep 2013 13:55:39 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7 MIME-Version: 1.0 To: Ingo Molnar CC: Mark Salter , linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, rth@twiddle.net, vgupta@synopsys.com, linux@arm.linux.org.uk, tony.luck@intel.com, geert@linux-m68k.org, monstr@monstr.eu, ralf@linux-mips.org, jejb@parisc-linux.org, benh@kernel.crashing.org, lethal@linux-sh.org, davem@davemloft.net, cmetcalf@tilera.com, gxt@mprc.pku.edu.cn, tglx@linutronix.de, mingo@redhat.com Subject: Re: [PATCH] Kconfig cleanup (PARPORT_PC dependencies) References: <1379012038-31764-1-git-send-email-msalter@redhat.com> <52321F0B.4070609@zytor.com> <20130912205349.GC3262@gmail.com> In-Reply-To: <20130912205349.GC3262@gmail.com> X-Enigmail-Version: 1.5.2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/12/2013 01:53 PM, Ingo Molnar wrote: >> >> I'm somewhat astonished that this driver is that problematic. It is >> really just a very basic PIO interface, at least in the absence of >> EPP/ECP. >> >> It is, of course, also largely a dead interface at this point so it >> probably doesn't matter. > > So, my collection of 'randconfig kernel crashers' has this exclusion and > comment: > > --- linux.orig/drivers/block/Kconfig > +++ linux/drivers/block/Kconfig > @@ -77,6 +77,11 @@ config GDROM > config PARIDE > tristate "Parallel port IDE device support" > depends on PARPORT_PC > + > + # the probe can hang during bootup on non-PARIDE boxes > + depends on BROKEN_BOOT_ALLOWED > + select BROKEN_BOOT if PARIDE = y > + > > So at least some uses of PARPORT_PC are unsafe. (might easily be a bug in > PARIDE) > That I would believe. -hpa