Description of problem:
RHEL5's microcode.dat file is outdated:
-rw-r--r-- 1 root root 798555 Dec 4 2006 /etc/firmware/microcode.dat
As was widely reported, Intel released newer microcode a few months ago to
address reliability issues on Core 2-based processors.
FWIW, Microsoft found the issues serious enough to warrant releasing a "critical
update" for their operating systems.
(See also bug #214431 against Fedora.)
Version-Release number of selected component (if applicable):
This package has long since been updated. Have you tried running a system update?
(?) I'm not seeing any indication that an update exists for RHEL5's
microcode_ctl package. "yum update" doesn't list any available updates, and
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/ shows the
same version I have.
Ah. It's in 5.1, but not 5.0 at this moment in time. I will check on that - but
it will shortly be available in 5.1 anyway.