Hey,
We are blocked on a bug fixed by RHEL in https://rhn.redhat.com/errata/RHBA-2012-0362.html. Specifically, the splice code in sendfile() incorrectly updating the offset position on the write side, Red Hat BZ#771868.
I have not been able to figure out if this bugfix is included in any CentOS releases. If you are better at reading release notes than me, could you please help me out and let me know if there's a CentOS release that includes this bugfix?
Thanks, Jeff