Hi, On Wed, Feb 18, 2009 at 14:09, Alain Terriault <alaint at music.mcgill.ca> wrote: > removing all my centos+ kernels and using kmod on top of redhat kernels > fix my nfs lock problem. Do you mean you replaced the CentOS-Plus kernel with a kernel from RedHat? Or are you using a CentOS-Base (instead of Plus) kernel now? 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? If the issue happens with a version of the -Plus kernel but does not happen with the same version of the -Base kernel, I think it might deserve a little more investigation, so the details on what fixed your problem are important for us to know. Thanks! Filipe