x86_64 problems...

[greg at linkify.com]

I've experienced what seems to be a 'lock up' on my opteron system.
Here's the configuration:

	Dual opteron 244 on Tyan 2882
	2GB ECC registered samsung ram
	Adaptec 2200S raid controller
	Dual cheetah 36GB drives in raid 1
	Pretty much all standard settings in bios

I notice an NMI complaint from the scsi driver at boot time,
anyone know anything specific to be on the lookout for?