From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robert Hancock Subject: Re: [BUG 2.6.21-rc3-git9] SATA NCQ failure with Samsum HD401LJ Date: Fri, 16 Mar 2007 07:56:33 -0600 Message-ID: <45FAA211.5030402@shaw.ca> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from shawidc-mo1.cg.shawcable.net ([24.71.223.10]:47474 "EHLO pd2mo3so.prod.shaw.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933848AbXCPN4p (ORCPT ); Fri, 16 Mar 2007 09:56:45 -0400 In-reply-to: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org (linux-ide cc'ed) Max Kellermann wrote: > Hi, > > I have been trying to upgrade my 2.6.19 kernel for a while now, > without success. All kernel versions since 2.6.20 failed with a > timeout while trying to write to my SATA hard disk. After I wait for > a while (during which all I/O to the hard disk blocks), the kernel > message "NCQ disabled due to excessive errors" appears, and the system > seems to work perfectly. > > My system is an Athlon64 X2 on an Asus A8N-Premium. I'm using the > sata_nv driver for the on-board SATA controller. My only hard disk is > a Samsum HD401LJ (400 GB). > > The kernel is build statically, and the only module is nvidia.ko. If > someone believes it may make a difference, I can try the kernel > without the proprietary module. > > Please see the kernel config and dmesg attached to this email. > > I don't know the libata subsystem well, but I suspect my hard drive > has to be added to the NCQ blacklist. > > Max This does indeed look like a drive side issue to me (the controller is reporting CPBs with response flags 2 which as far as I can tell indicates it's still waiting for the drive to complete the request). -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from hancockr@nospamshaw.ca Home Page: http://www.roberthancock.com/