From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chuck Ebbert Subject: AHCI driver prints "D2H reg with I during NCQ" message, what is it? Date: Fri, 13 Jul 2007 11:28:58 -0400 Message-ID: <46979A3A.2090005@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from mx1.redhat.com ([66.187.233.31]:58100 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936871AbXGMP3A (ORCPT ); Fri, 13 Jul 2007 11:29:00 -0400 Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254]) by mx1.redhat.com (8.13.1/8.13.1) with ESMTP id l6DFSxjL018365 for ; Fri, 13 Jul 2007 11:28:59 -0400 Received: from mail.boston.redhat.com (mail.boston.redhat.com [172.16.76.12]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id l6DFSwqc020001 for ; Fri, 13 Jul 2007 11:28:58 -0400 Received: from [172.16.83.145] (dhcp83-145.boston.redhat.com [172.16.83.145]) by mail.boston.redhat.com (8.13.1/8.13.1) with ESMTP id l6DFSwpf019699 for ; Fri, 13 Jul 2007 11:28:58 -0400 Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: IDE/ATA development list I see this on boot with kernels 2.6.22.1 and 2.6.20.15: ata1: D2H reg with I during NCQ, this message won't be printed again But I can't find anything that tells me what it means, or whether it's a real problem. x86_64 kernel with controller: 00:1f.2 SATA controller: Intel Corporation 631xESB/632xESB SATA Storage Controller AHCI (rev 09) and drive: ata1.00: ATA-7: HDS728080PLA380, PF2OA63A, max UDMA/133