Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764871AbXFFOa1 (ORCPT ); Wed, 6 Jun 2007 10:30:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753390AbXFFOaT (ORCPT ); Wed, 6 Jun 2007 10:30:19 -0400 Received: from shawidc-mo1.cg.shawcable.net ([24.71.223.10]:45832 "EHLO pd4mo1so.prod.shaw.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751124AbXFFOaS (ORCPT ); Wed, 6 Jun 2007 10:30:18 -0400 Date: Wed, 06 Jun 2007 08:29:13 -0600 From: Robert Hancock Subject: Re: Bad behaviour after hdparm -M 128 In-reply-to: To: linux-kernel@vger.kernel.org Message-id: <4666C4B9.8060408@shaw.ca> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7bit References: User-Agent: Thunderbird 2.0.0.0 (Windows/20070326) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1550 Lines: 47 Tino Keitel wrote: > Hi, > > I tried to enable acoustic management on my SATA drive, because > hdparm -I reported a recommended value of 128, and a current value > of 0 (off). > > I did this: > > $ sudo hdparm -M 128 /dev/sda > /dev/sda: > setting acoustic management to 128 > HDIO_DRIVE_CMD:ACOUSTIC failed: Input/output error > acoustic = not supported > > It apperently failed, no big deal. > > However, I had these messages in the kernel log, and they don't look > really harmless to me: > > ata3.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 > ata3.01: cmd ef/42:80:00:00:00/00:00:00:00:00/50 tag 0 cdb 0x0 data 0 > res 51/04:80:00:00:00/00:00:00:00:00/50 Emask 0x1 (device error) > ata3.01: configured for UDMA/133 > ata3: EH complete > SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB) > sda: Write Protect is off > sda: Mode Sense: 00 3a 00 00 > SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA > > Is this expected behaviour? > > I used kernel 2.6.21 with the libata PIIX SATA driver and a > Seagate ST98823AS drive. Yes, that's expected if the drive rejects the command. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from hancockr@nospamshaw.ca Home Page: http://www.roberthancock.com/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/