From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030878AbXDMXWf (ORCPT ); Fri, 13 Apr 2007 19:22:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030889AbXDMXWf (ORCPT ); Fri, 13 Apr 2007 19:22:35 -0400 Received: from shawidc-mo1.cg.shawcable.net ([24.71.223.10]:40474 "EHLO pd4mo1so.prod.shaw.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030878AbXDMXWd (ORCPT ); Fri, 13 Apr 2007 19:22:33 -0400 Date: Fri, 13 Apr 2007 17:21:06 -0600 From: Robert Hancock Subject: Re: Loud "pop" coming from hard drive on reboot In-reply-to: To: Chuck Ebbert , linux-kernel Cc: Bartlomiej Zolnierkiewicz Message-id: <46201062.1030005@shaw.ca> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7bit References: User-Agent: Thunderbird 1.5.0.10 (Windows/20070221) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Chuck Ebbert wrote: > When I reboot my notebook, it powers off and powers back on. > On poweroff a loud snapping noise seems to be coming from the > hard drive. Today I noticed there is no "shutdown: hda" on > the console when I reboot. Whne I do a normal poweroff the > message is displayed and there is no noise. Should the IDE > code be changed so it always shuts down the drive? The question is why the laptop powers off and back on. Do reboots from Windows do that? That is why the drive makes so much noise, because the kernel didn't standby the drive before rebooting, since it shouldn't have to, and yet the drive loses power so it does an emergency retract. Making the kernel shutdown on reboot would only add more spindown/up cycles for normally working systems. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from hancockr@nospamshaw.ca Home Page: http://www.roberthancock.com/