From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: Disk spin down issue on shut down/suspend to disk Date: Tue, 07 Aug 2007 03:43:08 +0900 Message-ID: <46B76BBC.9010107@gmail.com> References: <838f88840708051428p3d65ff42w627af4bc38f57de3@mail.gmail.com> <1186411815.4355.7.camel@nx6310> <20070806150159.GC31615@khazad-dum.debian.net> <200708061732.03425.rjw@sisk.pl> <46B75459.9020204@gmail.com> <1186424492.4355.1.camel@nx6310> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: Received: from rv-out-0910.google.com ([209.85.198.184]:19332 "EHLO rv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932443AbXHFSoL (ORCPT ); Mon, 6 Aug 2007 14:44:11 -0400 Received: by rv-out-0910.google.com with SMTP id k20so1194742rvb for ; Mon, 06 Aug 2007 11:44:11 -0700 (PDT) In-Reply-To: <1186424492.4355.1.camel@nx6310> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Michael Sedkowski Cc: "Rafael J. Wysocki" , Henrique de Moraes Holschuh , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, linux-acpi@vger.kernel.org Michael Sedkowski wrote: >> Hmmm... If the problem only shows up on nx6325, it might be that ACPI is >> pulling unnecessary stunt. Please apply the attached patch and report >> when the disk spins down and up. > > Disk spins down on "Pre-shutdown prepare" and then goes up and down on > "Power down". Oh... crap, so acpi wants to sync cache on shutdown. I wonder whether it spins down the disk correctly. Does emergency unload count increase after each power down? Also, please post the result of 'dmidecode'. Thanks. -- tejun