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Bug Fix Advisory cpuspeed bug fix update

Advisory: RHBA-2009:0424-3
Type: Bug Fix Advisory
Severity: N/A
Issued on: 2009-04-15
Last updated on: 2009-09-02
Affected Products: Red Hat Enterprise Linux (v. 5 server)
Red Hat Enterprise Linux Desktop (v. 5 client)

Details

An updated cpuspeed package that fixes various bugs is now available.

The cpuspeed package provides CPU frequency scaling support.

This updated package fixes the following bugs:

* the cpuspeed init script loaded the speedstep-centrino driver on Intel
systems, even when the acpi-cpufreq driver had already loaded successfully.
With both these drivers loaded, the system would not handle P-states
correctly. The cpuspeed init script now attempts to load the
speedstep-centrino driver only as a fallback for situations where it has
not been able to load the acpi-cpufreq driver. Intel systems that can use
the acpi-cpufreq driver no longer load the speedstep-centrino driver, and
now handle P-states correctly. (BZ#485480)

* a development version of this package attempted to make cpuspeed run
reliably on Xen kernels by only allowing cpuspeed to start on Xen kernels
if the number of virtual CPUs in dom0 equalled the number of physical CPUs
in the system. However, this condition can never be true until xend starts,
and xend starts after cpuspeed. Therefore, cpuspeed would only run properly
on Xen kernels if cpuspeed were restarted after the system completed the
boot process. The restriction that cpuspeed can only start if the number of
virtual and physical kernels are equal has therefore been removed, allowing
cpuspeed to start on Xen kernels even when xend has not yet started.
(BZ#488924, BZ#498406, BZ#492139)


Solution

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

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

Updated packages

Red Hat Enterprise Linux (v. 5 server)

SRPMS:
cpuspeed-1.2.1-8.el5.src.rpm
File outdated by:  RHBA-2014:0394
    MD5: 7edab8edeaeafdabfbd3daaea90d9730
 
IA-32:
cpuspeed-1.2.1-8.el5.i386.rpm
File outdated by:  RHBA-2014:0394
    MD5: 67521088747d2fb9458af5424dcea1b5
 
IA-64:
cpuspeed-1.2.1-8.el5.ia64.rpm
File outdated by:  RHBA-2014:0394
    MD5: 7c6c1ad6f1d271f4033924d78ec6a3fc
 
PPC:
cpuspeed-1.2.1-8.el5.ppc.rpm
File outdated by:  RHBA-2014:0394
    MD5: 9475b4d67ea436236fb2caac3cccb3ca
 
x86_64:
cpuspeed-1.2.1-8.el5.x86_64.rpm
File outdated by:  RHBA-2014:0394
    MD5: 7ed0d728eb9e1b08ed24f5770c7ef806
 
Red Hat Enterprise Linux Desktop (v. 5 client)

SRPMS:
cpuspeed-1.2.1-8.el5.src.rpm
File outdated by:  RHBA-2014:0394
    MD5: 7edab8edeaeafdabfbd3daaea90d9730
 
IA-32:
cpuspeed-1.2.1-8.el5.i386.rpm
File outdated by:  RHBA-2014:0394
    MD5: 67521088747d2fb9458af5424dcea1b5
 
x86_64:
cpuspeed-1.2.1-8.el5.x86_64.rpm
File outdated by:  RHBA-2014:0394
    MD5: 7ed0d728eb9e1b08ed24f5770c7ef806
 
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

488924 - [RHEL5.3 Xen]: cpuspeed lies about frequency scaling
492139 - kernel-xen does not depend on xen
498406 - [RHEL5.4]: Xen systems fail to start the cpuspeed service


Keywords

centrino, cpuspeed, p-state, vcpu, xen


These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:
https://www.redhat.com/security/team/key/#package

The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/