From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Lord Subject: Re: [PATCH/RFC] SCSI mid-layer suspend/resume Date: Wed, 26 Oct 2005 23:35:48 -0400 Message-ID: <43604B14.7080903@rtr.ca> References: <20051024160531.7d879a7c.randy_d_dunlap@linux.intel.com> <435D6E47.1030409@pobox.com> <20051025142529.7b23bbc0.randy_d_dunlap@linux.intel.com> <435EA5AB.9010805@pobox.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from cpu1185.adsl.bellglobal.com ([207.236.110.166]:26242 "EHLO mail.rtr.ca") by vger.kernel.org with ESMTP id S964958AbVJ0Dft (ORCPT ); Wed, 26 Oct 2005 23:35:49 -0400 In-Reply-To: <435EA5AB.9010805@pobox.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Jeff Garzik Cc: Randy Dunlap , linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org, axboe@suse.de, hch@lst.de Jeff Garzik wrote: > > We have emperical evidence that Jens' patch works on SATA, so see if the > two patches can meet in the middle somewhere? And just to muddy the waters somewhat.. I have an extra hard drive caddy for my Dell notebook, with a different 2.5" drive mounted in it. When using THAT drive, my machine cannot resume successully from suspend-to-RAM. Hangs with the hard drive light on solid some of the time, and not on other times. Drove me crazy figuring this out, but I eventually tried a different drive and it worked fine. So.. not all drives work for me. Now, the drive that doesn't work with suspend/resume (RAM) happens to claim to support Advanced Power Management. Except that "hdparm -Bxx" has zero effect on it -- cannot enable it or modify the setting in anyway. My other drives also have the APM feature, and have it turned *on*, and "hdparm -Bxx" can be used to turn it on/off and modify the setting. Very weird, possibly not related to the resume failures. Or maybe. Cheers