At Sun, 10 Sep 2006 it looks like Johan Johansen composed:
I run 6.1-STABLE-200607 on my brand new box with
Intel Core 2 Duo E6600 2 x 2,40 GHz cpu (beautiful piece of machinery)
I can use my dvd-devices with atapicd, but atapicam do not work.
kldload atapicam causes an interrupt storm,
Neither disabling atapicam nor atapicd works on my Core2Duo system. I
don't know whether it's related to the new IDE controllers (JMicron
363 and Intel ICH8) or a similar problem to what you're reporting. The
best I can do is about 3MB/s with atapicd and DMA disabled and also
with atapicam. Both
