From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: AHCI + ST3160023AS + NCQ problems Date: Mon, 12 Nov 2007 12:04:32 +0900 Message-ID: <4737C2C0.10905@gmail.com> References: <305c16960710291713v22875d26v8ccfc76daab102bd@mail.gmail.com> <47270CE9.4060501@msgid.tls.msk.ru> <311601c90710300615j33bf0959l51b1b2505e9b2048@mail.gmail.com> <472788F4.60300@msgid.tls.msk.ru> <305c16960710301728j557689a5rbec52a11ec606963@mail.gmail.com> <305c16960711062221u69e8eb37p1367b18343d0e2a5@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: Received: from nz-out-0506.google.com ([64.233.162.228]:42990 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752543AbXKLDEn (ORCPT ); Sun, 11 Nov 2007 22:04:43 -0500 Received: by nz-out-0506.google.com with SMTP id s18so841541nze for ; Sun, 11 Nov 2007 19:04:42 -0800 (PST) In-Reply-To: <305c16960711062221u69e8eb37p1367b18343d0e2a5@mail.gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Matheus Izvekov Cc: Michael Tokarev , "Eric D. Mudama" , linux-ide@vger.kernel.org, jgarzik@pobox.com Matheus Izvekov wrote: >> Indeed removing the jumper of sdb made it be recognised as SATA2. But >> sdc, what the problem is really about, is neither SATA2, not has any >> jumper whatsoever. but both the manufacturer and libata claim it >> supports NCQ. >> > > Anything i could do to help debug this? or perhaps it makes more sense > to just blacklist NCQ for this particular drive? Timeouts on modern SATA disks usually indicate hardware problem. * unstable power supply (this is quite common) * faulty cable or poorly seated connectors * faulty drive or controller (seems rare) Please apply common hardware debugging method - isolate problem by changing configuration piece-by-piece and finding out to which component the error actually belongs to. -- tejun