Filipe Brandenburger wrote: > Do you mean you replaced the CentOS-Plus kernel with a kernel from RedHat? > no > Or are you using a CentOS-Base (instead of Plus) kernel now? > yes .. apologies for the confusion > When you replaced it, did you upgrade it as well? What was the version > of the -Plus kernel you were using? And what is the version of the > -Base or RHEL kernel you are using now? > problematic setup : nfs server was running 2.6.18-92.1.22.el5.centos.plus clients where running 2.6.18-92.1.22.el5.x86_64 healty setup : nfs server is running 2.6.18-92.1.22.el5.x86_64 + kmod-xfs-0.4-2 clients are still on 2.6.18-92.1.22.el5.x86_64