From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: Intermittent SATA link down SStatus 0 Date: Thu, 21 Jan 2010 11:49:16 -0500 Message-ID: <4B58858C.5080502@garzik.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-yx0-f187.google.com ([209.85.210.187]:34516 "EHLO mail-yx0-f187.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751865Ab0AUQtT (ORCPT ); Thu, 21 Jan 2010 11:49:19 -0500 Received: by yxe17 with SMTP id 17so163655yxe.33 for ; Thu, 21 Jan 2010 08:49:18 -0800 (PST) In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Paul Check Cc: linux-ide@vger.kernel.org On 01/21/2010 10:57 AM, Paul Check wrote: > I am having an intermittent problem: > > ata1.01: SATA link down (SStatus 0 SControl 301) > > which is causing one of my four hard drives to not get recognized. > > This happens on ata1.01, ata2.00 or ata2.01, although it seems to happen > more on the 01 channels, I believe. My motherboard is an ASUS P6T Deluxe > V2, with the Marvel 88SE61XX ATA controller. > > I am running the 2.6.31 kernel. A variety of ATA controllers are enabled > in my kernel (as per default?) including AHCI SATA Support (SATA_AHCI), > Marvell SATA Support (SATA_MV), Generic ATA Support (ATA_Generic), and > Marvell PATA Support via Legacy Mode (PATA_MARVELL), among others. > > I see that the pata, generic and ahci are getting loaded (from lsmod): > > libata 189532 4 pata_marvell,ata_generic,ahci,ata_piix > > I am not using hardware RAID (although do have software RAID 1 running). > > The BIOS for the board has been updated to the latest version. The disks > are Seagate ST31000528AS 1 TB drives (4 of them, 2 sets of RAID 1). I > also have a Sony BWU-300S plugged in. > > Would deselecting the pata_marvell likely get rid of this problem? The > descriptor says: Link-down means the hardware is reporting that the link between host and drive disconnected. Removing unused or PATA drivers will probably not have any effect. Check your SATA cables and/or power supply. Jeff