From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S637757AbXDSM7J (ORCPT ); Thu, 19 Apr 2007 08:59:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S637759AbXDSM7J (ORCPT ); Thu, 19 Apr 2007 08:59:09 -0400 Received: from smtpauth04.prod.mesa1.secureserver.net ([64.202.165.95]:58323 "HELO smtpauth04.prod.mesa1.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S637757AbXDSM7I (ORCPT ); Thu, 19 Apr 2007 08:59:08 -0400 Message-ID: <46276799.3080200@seclark.us> Date: Thu, 19 Apr 2007 08:59:05 -0400 From: Stephen Clark Reply-To: Stephen.Clark@seclark.us User-Agent: Mozilla/5.0 (X11; U; Linux 2.2.16-22smp i686; en-US; m18) Gecko/20010110 Netscape6/6.5 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Jan Engelhardt CC: Alan Cox , Tejun Heo , 7eggert@gmx.de, Chuck Ebbert , emisca , Bartlomiej Zolnierkiewicz , linux-kernel , linux-ide@vger.kernel.org, Adrian Bunk , Andrew Morton Subject: Re: Loud "pop" coming from hard drive on reboot References: <88SeR-5Sf-15@gated-at.bofh.it> <88Sov-662-3@gated-at.bofh.it> <88SHV-6uL-29@gated-at.bofh.it> <8agVk-3wc-81@gated-at.bofh.it> <8b3IR-4mE-25@gated-at.bofh.it> <8b3SA-4z3-5@gated-at.bofh.it> <8b42g-51N-15@gated-at.bofh.it> <8bbdm-7iS-27@gated-at.bofh.it> <46260981.1040109@gmail.com> <20070418132904.3322ba5f@the-village.bc.nu> <46261337.3010406@gmail.com> <20070418140346.636879a1@the-village.bc.nu> <46261F92.2080607@seclark.us> In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jan Engelhardt wrote: >On Apr 18 2007 09:39, Stephen Clark wrote: > > >>So this is the pop I hear on my new laptop that is using >>libata=combined_mode when I shut my system down. I didn't get the >>pop with the same disk drive in an older laptop that was only ide. >>It sounds like a relay closing or opening, but is really my drive >>head doing an emergency retract/park? >> >> > >Most(?) disks' heads are spring-/power-based so that whenever >they lose power, the spring retracts the head back to the park zone. > >Whether it is the disk head or something else.. take out the disk, >and retry. Might not be that easy with laptops, though. > > >Jan > > It is definitely the disk drive. It is located in the right front corner of my laptop so I put my ear by it during shutdown and that is where the click is coming from. As I said before I had this same drive in another laptop that was strictly ide so it used the older ide driver and it never did this. Steve -- "They that give up essential liberty to obtain temporary safety, deserve neither liberty nor safety." (Ben Franklin) "The course of history shows that as a government grows, liberty decreases." (Thomas Jefferson)