From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750935AbWFXGzW (ORCPT ); Sat, 24 Jun 2006 02:55:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750907AbWFXGzW (ORCPT ); Sat, 24 Jun 2006 02:55:22 -0400 Received: from smtp.osdl.org ([65.172.181.4]:62436 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1750879AbWFXGzV (ORCPT ); Sat, 24 Jun 2006 02:55:21 -0400 Date: Fri, 23 Jun 2006 23:55:14 -0700 From: Andrew Morton To: vgoyal@in.ibm.com Cc: linux-kernel@vger.kernel.org, fastboot@lists.osdl.org, linux-scsi@vger.kernel.org, ebiederm@xmission.com, mike.miller@hp.com Subject: Re: [RFC] [PATCH 1/2] introduce crashboot kernel command line parameter Message-Id: <20060623235514.48ea9578.akpm@osdl.org> In-Reply-To: <20060623210121.GA18384@in.ibm.com> References: <20060623210121.GA18384@in.ibm.com> X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.17; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 23 Jun 2006 17:01:21 -0400 Vivek Goyal wrote: > o Add kernel command line option "crashboot" > > o This option is an indication to the kernel that kernel is booting in an > unreliable environment where possibly BIOS execution has been skipped > and devices are left operational or in unknown state. > > o Kernel, especially device drivers can use this option to take special > actions like soft-resetting the device, relaxing some of the rules > to make sure kernel can boot/device driver can initiliaze in this > environment. > > o As of today this option is useful to Kdump. Kdump will pass this option > to second kernel to improve the reliability of successful kenrel boot/ > device driver initializatoin. It worries me that this will be used to work around driver problems rather than fixing them properly.