RHBA-2013:1658 - Bug Fix Advisory

Topic

Updated mcelog packages that fix several bugs and add various enhancements are
now available for Red Hat Enterprise Linux 6.

Description

The mcelog packages contain a daemon that collects and decodes Machine Check
Exception (MCE) data on AMD64 and Intel 64 machines.

This update fixes the following bugs:

• Previously, mcelog packages installed a cron job to report the status of mce

logs, which conflicted with running the mclogd service as default mode.
Consequently, mcelog competed with the cron job and did not collect complete
data. With this update, cron job is not installed in case mcelogd is running,
thus fixing this bug. (BZ#875824)

• Due to a bug in mcelog packages, the AMD Family 15 architecture was not

supported. The bug has been fixed and mcelog now supports AMD Family 15 as
expected. (BZ#919999)

• Previously, support for extended logging was enabled by default in mcelog

packages. Consequently, on systems with processors without support for extended
logging, the mcelog service terminated unexpectedly with the following message:

mcelog: Cannot open /dev/cpu/0/msr to set imc_log: Permission denied

With this update, extended logging is disabled by default in mcelog packages,
and the mcelog service no longer crashes in the aforementioned scenario.
(BZ#996634)

In addition, this update adds the following enhancements:

• With this update, mcelog packags support Intel Xeon Processor E5-XXXX v3,

Intel Xeon Processor E5-XXXX, and Intel Xeon Processor E3-XXXX v3 architectures.
(BZ#881555, BZ#922873, BZ#991079)

Users of mcelog are advised to upgrade to these updated packages, which fix
these bugs and add these enhancements.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64

Fixes

CVEs

(none)

References

(none)