Hi,

It looks like the rebuilt nfs-utils-1.2.3-15.el6.0.sl6 package is 
incorrectly linked. I am repeatedly getting segfaults in rpc.gssd:

Jan 12 14:25:12 vincent kernel: rpc.gssd[12580]: segfault at 600 ip 
00007fcbebd4c1fc sp 00007fff1b03d570 error 4 in 
libc-2.12.so[7fcbebcd7000+197000]

Reverting to the earlier rebuilt nfs-utils-1.2.3-15.el6 fixes the issue. 
The original nfs-utils-1.2.3-15.el6 however also segfaulted.

Jonathan