[CentOS] "No free sectors available" while try to extend logical volumen in a virtual machine running CentOS 6.5

Ok. I think, I should know

- whether you have rebooted your machine/VM right after extended the disk
?  If not, please don't reboot now :)
- Other than attaching an additional disk, have you tried any lvm/dd
commands or any other procedure that's missed in your previous update ?