Lots of DMA messages on FreeBSD 10

[Johan Hendriks]

Hello all.

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?

regards
Johan