I have heard one report about errors building Samba 3..6.25 + the Badlock fixes ...

Tue May 10 10:08:58 UTC 2016

On Monday, May 02, 2016 02:10:21 PM Richard Sharpe wrote:
> Hi folks,
> 
> It seems that some versions of CentOS 6.x have a version of patch that
> causes problems.
> 
> It seems you need patch version 2.7 or better.

It works just fine as you can see that we have RHEL packages. If you can't 
provide details we can't help ...