If you need a newer kernel to use that patch, I would recommend something that runs more cutting edge for that server, maybe Gentoo or Fedora 9. I don't recommend patching CentOS with a new kernel as you lose the main benefit for using an Enterprise distro .. stability.
You meant I should not patch the newest kernel but original kernel, right? For example, I should download the source codes of kernel -2.6.18 used in CentOS 5 from www.centos.org and do patching. right?
I am thinking the same method to achieve the highest stability. If you also recommend the way, I am willing to try again.
Thanks!
Ian