[CentOS] Intel e1000e driver bug and 82574L controller

One of the more promising solutions I'm looking at for my dual-ethernet
dual-monitor workstation contains an Intel 82574L Ethernet controller. I
found a LOT of postings regarding a bug in the driver for this controller:

http://www.doxer.org/learn-linux/resolved-intel-e1000e-driver-bug-on-82574l-ethernet-controller-causing-network-blipping/
https://bugzilla.redhat.com/show_bug.cgi?id=632650

but there isn't any clear indication as to whether the bug has been
resolved in mainline CentOS 6.4 or not.

Has this bug been resolved?

-G.
--
Glenn Eychaner (geychaner at lco.cl)
Telescope Systems Programmer, Las Campanas Observatory