10.6.3 frequent crashes

I've got an xServe 2.66Ghz w/ SSD and 12GB ram running 10.6.3 server. This is a new server and was running 10.6.2 for 3-4 weeks before I upgraded to 10.6.3. I made the mistake of not testing 10.6.3 first before rolling this server into production. This server provides authentication for mobile home computers, email server, web servers, etc. It also is my main AFP server at the moment. It's running OD, RADIUS, AFP and SMB.

The first thing I noticed is that OD will stop working before any other service. This causes all sorts of issues in my environment. I do have another slightly older xServe running 10.6.3 (OD Replica) and that has been stable thus far, although it's not running AFP or SMB.

This morning the server was completely locked up and needed a full restart. I had a 6port Small-Tree ethernet card installed and removed it thinking the link aggregation could've been the issue. The issues still persists regardless. Other than the card, the computer is as is from Apple including the memory.

I'll be posting log information shortly. I wanted to see if others are having issues with 10.6.3. I've seen a few threads specifically related to AFP issues in 10.6.3 and it's possible AFP is the root of the issues here. I do have AppleCare support so will be calling them today as well. Wanted to get this thread out there for anyone else who might be having the same issues as me.