From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH] libata: blacklist NCQ on OCZ CORE 2 SSD Date: Mon, 22 Dec 2008 17:14:12 +0900 Message-ID: <494F4C54.9040602@kernel.org> References: <4946C96B.2030603@dsrg.mff.cuni.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from hera.kernel.org ([140.211.167.34]:50892 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752918AbYLVIO2 (ORCPT ); Mon, 22 Dec 2008 03:14:28 -0500 In-Reply-To: <4946C96B.2030603@dsrg.mff.cuni.cz> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: =?UTF-8?B?THVib23DrXIgQnVsZWo=?= Cc: jgarzik@pobox.com, linux-ide@vger.kernel.org Lubom=C3=ADr Bulej wrote: > Hello, >=20 > after putting a 250G OCZ CORE v2 SSD into my notebook, I have to endu= re > several invocations of the ata EH before the kernel decides to disabl= e > NCQ due too many errors. The drive reports NCQ of depth 1, which is > probably useless anyway. >=20 > The patchlet below saves me the waiting for the completion of several > ata EH invocations, but I'm not sure if this is the right solution. > Attached are two dmesg dumps, one with errors and the other with the > patchlet compiled in. Attached is also "hdparm -I" of the drive. Aieee.. these SSDs. Can't they hire someone who actually know ATA before putting these devices out on the market? :-( Anyways, I don't think there's much we can do other than blacklisting it. Can you please resend with proper S-O-B? --=20 tejun