dl360 g4p / ciss controller not working on 7.0 snapshot from march

Hi list,
FreeBSD 6.2 can be bootet correctly besides a strange 3 minute timeout 
after da0 has been detected on ciss0
FreeBSD 7.0 current from march or feb couldn't be bootet at all the 
kernel stuck after "pci2: <ACPI PCI BUS> on pcib6 found". Normally the 
kernel would find the ciss0 device after that, but it doesn't. and the 
kernel stuck.
booting in verbose / safe /without acpi / disabling acpi related stuff 
in bios had no effect on this issue.
Any hints whats going on with ciss driver on dl360 g4p box?
regards,
-Dennis