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Date:      Mon, 25 Nov 2013 15:25:11 +0100
From:      Johan Hendriks <joh.hendriks@gmail.com>
To:        Glen Barber <gjb@FreeBSD.org>
Cc:        freebsd-stable <freebsd-stable@freebsd.org>
Subject:   Re: Lots of DMA messages on FreeBSD 10
Message-ID:  <52935DC7.7000409@gmail.com>
In-Reply-To: <20131125135656.GF2310@glenbarber.us>
References:  <52935242.2050008@gmail.com> <20131125135656.GF2310@glenbarber.us>

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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



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