From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: libata pm Date: Sun, 27 Jan 2008 08:33:33 +0900 Message-ID: <479BC34D.2000007@gmail.com> References: <52279.82.140.50.2.1201370600.squirrel@ssl.cavemail.org> <49398.82.140.50.2.1201377943.squirrel@ssl.cavemail.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from rv-out-0910.google.com ([209.85.198.185]:20138 "EHLO rv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752847AbYAZXdj (ORCPT ); Sat, 26 Jan 2008 18:33:39 -0500 Received: by rv-out-0910.google.com with SMTP id k20so1222610rvb.1 for ; Sat, 26 Jan 2008 15:33:39 -0800 (PST) In-Reply-To: <49398.82.140.50.2.1201377943.squirrel@ssl.cavemail.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: dusty@gmx.li Cc: linux-ide@vger.kernel.org dusty@gmx.li wrote: > I could solve the problem by ncq blacklisting the "Maxtor 6V300F0" devices > in libata-core.c That's a strange story. The reported error was PHY readiness changed and Device exchanged, both of which point to hotplug event. Maybe something causes the firmware to reset? What happen if you only leave two drives on the port multiplier and remove the NCQ blacklist? Also, does the error ever occur on the drives which are connected directly to the controller? -- tejun