RHBA-2014:1404 - Bug Fix Advisory

Topic

Updated tuna packages that fix several bugs are now available for Red Hat
Enterprise Linux 6.

Description

The tuna packages provide an interface for changing both scheduler and IRQ
tunables, at whole CPU, per-thread or per-IRQ levels. tuna allows CPUs to be
isolated for use by a specific application and threads and interrupts to be
moved to a CPU simply by dragging and dropping them.

The tuna package has been upgraded to upstream version 0.10.4, which provides a
number of bug fixes over the previous version. (BZ#1029591)

This update also fixes the following bugs:

• Previously, if the scheduler priority was not specified, the "tuna -t $PID -p

OTHER" command failed with the following error:

ValueError: invalid literal for int() with base 10: 'OTHER'

This error occurred also when different parameters, such as RR or FIFO, were
passed to the -p option. This bug has been fixed and the value error no longer
occurs. (BZ#1035795)

• Due to a bug in the tuna package, the "tuna -CP" command failed to list

processes, returning the following message:

NameError: global name 'cgroups' is not defined

This bug has been fixed and the name error no longer occurs when executing "tuna

• CP". (BZ#1059685)

Users of tuna are advised to upgrade to these updated packages, which fix these
bugs.

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/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 1029591 - Rebase tuna to 0.10.4 - which is well tested in MRG
• BZ - 1035795 - tuna throwing valueerror when not specified priority

CVEs

(none)

References

(none)