From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: Port Multiplier drives not always all found on cold plug Date: Sun, 18 May 2008 14:23:13 +0900 Message-ID: <482FBD41.7020604@gmail.com> References: <482DB79F.2030204@rtr.ca> <482DBA62.4020209@rtr.ca> <482DBC5C.3020904@rtr.ca> <482DC41F.9080901@rtr.ca> <482DCD1F.4090503@rtr.ca> <482EE9E1.5000805@gmail.com> <482F16AB.1040003@rtr.ca> <482F1B5C.2000006@gmail.com> <482F2F1C.9030102@rtr.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from wa-out-1112.google.com ([209.85.146.178]:6671 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752429AbYERFXU (ORCPT ); Sun, 18 May 2008 01:23:20 -0400 Received: by wa-out-1112.google.com with SMTP id j37so1153235waf.23 for ; Sat, 17 May 2008 22:23:19 -0700 (PDT) In-Reply-To: <482F2F1C.9030102@rtr.ca> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Mark Lord Cc: Jeff Garzik , Alan Cox , IDE/ATA development list Mark Lord wrote: > Tejun Heo wrote: >> >> * sil3124/32 and mv4140 combination for some reason can't do NCQ >> reliably. I don't know why. I'll blacklist it for the time being >> and contact both companies about this. > .. > > MMm... I wonder if it's the "don't mix NCQ with non-NCQ" issue there ? > > I'll ping my Marvell folks about that one too. Hmm... I don't think so. It happens when all pending commands are NCQ. -- tejun