From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chuck Ebbert Subject: Another SATA device with spurious NCQ completions Date: Mon, 25 Jun 2007 14:34:59 -0400 Message-ID: <46800AD3.7050803@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]:39051 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751708AbXFYSfQ (ORCPT ); Mon, 25 Jun 2007 14:35:16 -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 l5PIYxI0007642 for ; Mon, 25 Jun 2007 14:34:59 -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 l5PIYxsP010891 for ; Mon, 25 Jun 2007 14:34:59 -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 l5PIYxKS011695 for ; Mon, 25 Jun 2007 14:34:59 -0400 Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: IDE/ATA development list From: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=245512 The following error consistently appears at apparently random intervals in syslog: kernel: ata1.00: exception Emask 0x2 SAct 0x1001 SErr 0x0 action 0x2 frozen kernel: ata1.00: (spurious completions during NCQ issue=0x0 SAct=0x1001 FIS=004040a1:00000800) kernel: ata1.00: cmd 61/08:00:39:2b:cc/00:00:08:00:00/40 tag 0 cdb 0x0 data 4096 out kernel: res 40/00:00:39:2b:cc/00:00:08:00:00/40 Emask 0x2 (HSM violation) kernel: ata1.00: cmd 61/08:60:e1:2b:cc/00:00:08:00:00/40 tag 12 cdb 0x0 data 4096 out kernel: res 40/00:00:39:2b:cc/00:00:08:00:00/40 Emask 0x2 (HSM violation) Controller is ATI SB600 using the AHCI driver. 64-bit DMA is disabled. Disk is: ata1.00: ATA-7: ST3160812AS, 3.ADJ, max UDMA/133 Can't we just turn off NCQ automatically when this happens?