No booting - ata1-slave: FAILURE

Hi,

I just cvsup'd RELENG_5 and the system is not booting any more with the 
new kernel. It hangs at the ata identifying with the message:

ata1-slave: FAILURE - ATAPI_IDENTIFY timed out

I am using the GENERIC kernel, the only additional thing in there is 
atapicam. Maybe I just cvsup'd  at a bad time :-) ?

Cheers, Jochen