Issued:
2014-04-10
Updated:
2014-04-10

RHBA-2014:0394 - cpuspeed bug fix update

Synopsis

cpuspeed bug fix update

Type/Severity

Bug Fix Advisory

Topic

Updated cpuspeed packages that fix one bug are now available for Red Hat Enterprise Linux 5.

Description

The cpuspeed packages contain a daemon that dynamically changes the speed of processors depending upon their current workload. This package also allows users to enable CPU frequency scaling using in-kernel CPUfreq governors on Intel Centrino and AMD Athlon64/Opteron platforms.

This update fixes the following bug:

  • Previously, certain AMD processors were not entirely compatible with the CPU frequency scaling. As a consequence, a kernel panic could occur on some AMD-based Hardware Virtual Machine (HVM) guests when CPU frequency scaling was enabled. With this patch, the default CPU governor value has been set to "performance", which prevents this problem. Thus, unless the user changes the CPU governor setting, the kernel now no longer panics when CPU frequency scaling is enabled on HVM guests. (BZ#1078211)

Users of cpuspeed are advised to upgrade to these updated packages, which fix this bug.

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

ProductVersionArch
Red Hat Enterprise Linux for Power, big endian5ppc
Red Hat Enterprise Linux Workstation5x86_64
Red Hat Enterprise Linux Workstation5i386
Red Hat Enterprise Linux Server5x86_64
Red Hat Enterprise Linux Server5ia64
Red Hat Enterprise Linux Server5i386
Red Hat Enterprise Linux Server from RHUI5x86_64
Red Hat Enterprise Linux Server from RHUI5i386
Red Hat Enterprise Linux Desktop5x86_64
Red Hat Enterprise Linux Desktop5i386

Updated Packages

  • cpuspeed-debuginfo-1.2.1-11.el5_10.ppc.rpm
  • cpuspeed-debuginfo-1.2.1-11.el5_10.i386.rpm
  • cpuspeed-1.2.1-11.el5_10.ia64.rpm
  • cpuspeed-1.2.1-11.el5_10.src.rpm
  • cpuspeed-1.2.1-11.el5_10.i386.rpm
  • cpuspeed-1.2.1-11.el5_10.ppc.rpm
  • cpuspeed-1.2.1-11.el5_10.x86_64.rpm
  • cpuspeed-debuginfo-1.2.1-11.el5_10.x86_64.rpm
  • cpuspeed-debuginfo-1.2.1-11.el5_10.ia64.rpm

Fixes

(none)

CVEs

(none)

References

(none)

Additional information