Typo in my last message - I meant 2.6.23-rc3, not 2.6.22-rc3.  Here it 
is again with correction

I had a kernel oops on my x86_64 dual quad-core Xeon system running
2.6.23-rc3.  The system is an NFSv4 client to another 2.6.23-rc3
system.  The OOPS text is attached and the config file.