Lots of DMA messages on FreeBSD 10

[Glen Barber]

On Mon, Nov 25, 2013 at 03:25:11PM +0100, Johan Hendriks wrote:
> 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 at 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?
> 

Ah.  Due to some CAM changes, after upgrading from 9.x to 10.x,
rebuilding sysutils/hald should work.

Anything using the CAM system will have to be rebuilt as well (i.e.,
sysutils/smartmontools).

Glen

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