From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH upstream-fixes] libata: disable NCQ on Crucial C300 SSD Date: Tue, 06 Apr 2010 10:57:28 -0400 Message-ID: <4BBB4BD8.4050604@garzik.org> References: <4BB9421E.9050007@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from qw-out-2122.google.com ([74.125.92.25]:30617 "EHLO qw-out-2122.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751130Ab0DFO5c (ORCPT ); Tue, 6 Apr 2010 10:57:32 -0400 Received: by qw-out-2122.google.com with SMTP id 8so1771758qwh.37 for ; Tue, 06 Apr 2010 07:57:30 -0700 (PDT) In-Reply-To: <4BB9421E.9050007@kernel.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Tejun Heo Cc: "linux-ide@vger.kernel.org" , lethalwp@scarlet.be, Luke Macken On 04/04/2010 09:51 PM, Tejun Heo wrote: > Crucial said, > > Thank you for contacting us. We know that with our M225 line of SS= Ds > you sometimes need to disable NCQ (native command queuing) to avoi= d > just the type of errors you're seeing. Our recommendation for the > M225 is to add libata.force=3Dnoncq to your Linux kernel boot opti= ons, > under the kernel ATA library option. > > I have sent your feedback to the engineers working on the C300, an= d > asked them to please pass it on to the firmware team. I have been > notified that they are in the process of testing and finalizing a > new firmware version, that you can expect to see released around t= he > end of April. We=92ll keep you posted as to when it will be availa= ble > for download. > > So, turn off NCQ on the drive w/ the current firmware revision. > > Reported in the following bug. > > https://bugzilla.kernel.org/show_bug.cgi?id=3D15573 > > Signed-off-by: Tejun Heo > Reported-by: lethalwp@scarlet.be > Reported-by: Luke Macken > --- > drivers/ata/libata-core.c | 3 +++ > 1 file changed, 3 insertions(+) applied