On 08/11/12 08:53, Santi Saez wrote: > Forwarding just in case anyone is familiar with this on CentOS, thanks! Hello, I don't know the exact bit that enables this feature in the kernel, but chances are the el5 kernel is simply too old to support this. If you want to stick with el5 then you could have a shot at it by using kernel-lt or kernel-ml from elrepo project.