From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: libata interface fatal error Date: Thu, 24 May 2007 16:59:52 +0200 Message-ID: <4655A868.3010707@gmail.com> References: <4655923E.5000409@effenberger.org> <46559713.9070201@gmail.com> <46559C62.2040509@effenberger.org> <46559F5B.4090700@gmail.com> <4655A588.40500@effenberger.org> <87f94c370705240755t1040e5c8jaeb1882a2a393ac1@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from py-out-1112.google.com ([64.233.166.180]:65333 "EHLO py-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750799AbXEXPAG (ORCPT ); Thu, 24 May 2007 11:00:06 -0400 Received: by py-out-1112.google.com with SMTP id a73so902850pye for ; Thu, 24 May 2007 08:00:05 -0700 (PDT) In-Reply-To: <87f94c370705240755t1040e5c8jaeb1882a2a393ac1@mail.gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Greg Freemyer Cc: Florian Effenberger , jgarzik@pobox.com, linux-ide@vger.kernel.org Greg Freemyer wrote: >> I will try to use another test disk. Right now we use different models >> of Western Digital "RAID edition". >> > > iiuc, raid editions are designed to fail fast thus allowing an > alternate drive to provide the data rather than having to wait thru > multiple internal retries. > > Could this just be a case of the drive functioning as designed? If that's the case, the drive should be aborting commands with ICRC bit set reporting unrecoverable media error (AC_ERR_DEV | AC_ERR_MEDIA in libata terms) but the errors are fatal interface errors and timeouts, both of which are indicative of transmission problems on ATA link. -- tejun