From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Matheus Izvekov" Subject: Re: AHCI + ST3160023AS + NCQ problems Date: Fri, 7 Dec 2007 18:54:27 -0200 Message-ID: <305c16960712071254n5d78b293if8d5ba2879a66b4a@mail.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> <4737C2C0.10905@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: Received: from py-out-1112.google.com ([64.233.166.182]:8867 "EHLO py-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751798AbXLGUy3 (ORCPT ); Fri, 7 Dec 2007 15:54:29 -0500 Received: by py-out-1112.google.com with SMTP id u77so1782372pyb for ; Fri, 07 Dec 2007 12:54:27 -0800 (PST) In-Reply-To: <4737C2C0.10905@gmail.com> Content-Disposition: inline Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Tejun Heo Cc: Michael Tokarev , "Eric D. Mudama" , linux-ide@vger.kernel.org, jgarzik@pobox.com On Nov 12, 2007 1:04 AM, Tejun Heo wrote: > 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 > Tried everything, short of trying the hd on another controller, but the problem persists.