[CentOS] Is the NFS lockd bug fixed ?

Hi,

I notice other users reporting problems with NFS lockd and was under the 
impression the problem was solve with "kernel-2.6.18-92.1.13.el5".

I am runing x86_64 versions of "kernel-2.6.18-92.1.22.el5.centos.plus" ( 
i need XFS) on my nfs server and "kernel 2.6.18-92.1.22.el5" on my clients.

I constantly get this error "lockd: server 192.168.10.2 not responding, 
timed out"

Does the most recent "centos_x64" kernel has the lockd patch ?
maybe my problem is elsewhere, I never had problem with NFS before ..

thanks,
alain