From owner-freebsd-stable@FreeBSD.ORG  Mon Nov 25 14:25:16 2013
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id C030C2B1;
 Mon, 25 Nov 2013 14:25:16 +0000 (UTC)
Received: from mail-ea0-x232.google.com (mail-ea0-x232.google.com
 [IPv6:2a00:1450:4013:c01::232])
 (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits))
 (No client certificate requested)
 by mx1.freebsd.org (Postfix) with ESMTPS id 3837E2D2E;
 Mon, 25 Nov 2013 14:25:16 +0000 (UTC)
Received: by mail-ea0-f178.google.com with SMTP id d10so2475953eaj.37
 for <multiple recipients>; Mon, 25 Nov 2013 06:25:14 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=message-id:date:from:user-agent:mime-version:to:cc:subject
 :references:in-reply-to:content-type:content-transfer-encoding;
 bh=kXjdKsY1TyEEztkTK5nR96/Gz9b+9Sk37eFTBZd8TLY=;
 b=t5ZummlWFfMQg6FuXgXlyLobJ81dT20llr7JO5vR8VRiYrDP0MzIAt3MFXo+ctXPsx
 Q7YsoZTlXr+b/lqxnIPuX1bU8RpRNMsPQ/wu4s0SCEVIkGCm2BKEqCV/iPDfOt8J7Vhu
 y4eKR/fbzA93TdXlQ1YY4VMOFC/jy7vos5qv1P49RWfmZwuQ4KgVuAGTHNP2DqUqocx5
 A545mYRsD1Fqfb2dqrJZbBPlubn4DztOwrHMoME+oTniwMJyxvn0WLxtlZ9HvxcUI7pC
 5MQSjx6J62DpXLw9xOiq1IBYnRvac1uLIR6nJ1neTitmVtuZObGh0jzCoLU6DIHRyZMD
 WlAQ==
X-Received: by 10.15.23.206 with SMTP id h54mr36810217eeu.17.1385389514618;
 Mon, 25 Nov 2013 06:25:14 -0800 (PST)
Received: from [192.168.1.129] ([193.173.55.180])
 by mx.google.com with ESMTPSA id n1sm1338826eep.20.2013.11.25.06.25.12
 for <multiple recipients>
 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128);
 Mon, 25 Nov 2013 06:25:13 -0800 (PST)
Message-ID: <52935DC7.7000409@gmail.com>
Date: Mon, 25 Nov 2013 15:25:11 +0100
From: Johan Hendriks <joh.hendriks@gmail.com>
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64;
 rv:24.0) Gecko/20100101 Thunderbird/24.1.1
MIME-Version: 1.0
To: Glen Barber <gjb@FreeBSD.org>
Subject: Re: Lots of DMA messages on FreeBSD 10
References: <52935242.2050008@gmail.com> <20131125135656.GF2310@glenbarber.us>
In-Reply-To: <20131125135656.GF2310@glenbarber.us>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: freebsd-stable <freebsd-stable@freebsd.org>
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.16
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable/>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 25 Nov 2013 14:25:16 -0000

Glen Barber schreef:
> On Mon, Nov 25, 2013 at 02:36:02PM +0100, Johan Hendriks wrote:
>> I just updated my machine from 9-STABLE to 10-Stable today.
>>
>> beasty ~ # uname -a
>> FreeBSD beasty.schavemaker2.local 10.0-BETA3 FreeBSD 10.0-BETA3 #0 r258543:
>> Mon Nov 25 13:23:31 CET 2013
>> root@beasty.schavemaker2.local:/usr/obj/usr/src/sys/KRNL  amd64
>>
>> After a reboot, the console gets cluttered with a lot of messages.
>>
>> ata2: FAILURE - zero length DMA transfer attempted
>> ata2: setting up DMA failed
>> These messages go on and on.
>>
>> ata2 is my cdrom drive!
>>
>> Is there something i can try?
>>
> Is there a CD in the drive?
>
> Glen
>
Ok i found the culprit, but do not know how to isolate the problem.
I noticed that the message came every two seconds.
So my thought was to disable hald and dbus, I rebooted and the message 
is gone.

Is there a setting to disable the cdrom check?

regards
johan