From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Sedkowski Subject: Re: Disk spin down issue on shut down/suspend to disk Date: Tue, 07 Aug 2007 21:23:38 +0200 Message-ID: <1186514618.5622.9.camel@nx6310> References: <46B7AF53.1040307@shaw.ca> <46B8140E.3000509@gmail.com> <1186497925.8780.78.camel@queen.suse.de> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from ug-out-1314.google.com ([66.249.92.171]:63692 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754404AbXHGTXo (ORCPT ); Tue, 7 Aug 2007 15:23:44 -0400 Received: by ug-out-1314.google.com with SMTP id j3so115592ugf for ; Tue, 07 Aug 2007 12:23:42 -0700 (PDT) In-Reply-To: <1186497925.8780.78.camel@queen.suse.de> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: trenn@suse.de Cc: Tejun Heo , Robert Hancock , "Rafael J. Wysocki" , Henrique de Moraes Holschuh , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, linux-acpi@vger.kernel.org I did some additional checking today... On kernels prior to 2.6.22 line, the bug exists and manifests itself exactly the same way. However, when I removed the "-h" flag from /etc/init.d/halt, the drive spins down only once on "Power down" message and there is no sign of the bug and the emergency unload count remains constant. I've verified this on kernels 2.6.21.6; 2.6.20.4; 2.6.18-4-686-Etch. The obvious conclusion is that something must have changed it the 2.6.22 kernels, so that removing the "-h" has no effect. I dunno if my observations are of any value, but I thought You should know... Regards, Michael