Synopsis

irqbalance bug fix update

Type/Severity

Bug Fix Advisory

Topic

Updated irqbalance packages that fix two bugs are now available for Red Hat
Enterprise Linux 6.

Description

The irqbalance packages provide a daemon that evenly distributes interrupt
request (IRQ) load across multiple CPUs for enhanced performance.

This update fixes the following bugs:

• Previously, the irqbalance daemon did not consider the NUMA node assignment
  for an IRQ (interrupt request) for the banned CPU set. Consequently, irqbalance
  set the affinity incorrectly when the IRQBALANCE_BANNED_IRQS variable was set to
  a single CPU. In addition, IRQs could not be assigned to a node that had no
  eligible CPUs. Node assignment has been restricted to nodes that have eligible
  CPUs as defined by the unbanned_cpus bitmask, thus fixing the bug. As a result,
  irqbalance now sets affinity properly, and IRQs are assigned to the respective
  nodes correctly. (BZ#1054590)
  
• Prior to this update, the dependency of the irqbalance daemon was set
  incorrectly referring to a wrong kernel version. As a consequence, irqbalance
  could not balance IRQs on NUMA systems. With this update, the dependency has
  been fixed, and IRQs are now balanced correctly on NUMA systems.
  

Note that users of irqbalance packages have to update kernel to 2.6.32-358.2.1
or later in order to use the irqbalance daemon in correct manner. (BZ#1055572)

Users of irqbalance 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/site/articles/11258

Affected Products

• Red Hat Enterprise Linux Server - Extended Update Support 6.4 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support 6.4 i386
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.4 ppc64
• Red Hat Enterprise Linux High Availability (for RHEL Server) - Extended Update Support 6.4 i386
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.4 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.4 i386
• Red Hat Gluster Storage Server for On-premise 2.1 x86_64
• Red Hat Storage for Public Cloud (via RHUI) 2.1 x86_64
• Red Hat Enterprise Linux EUS Compute Node 6.4 x86_64
• Red Hat Enterprise Linux Server - AUS 6.4 x86_64

Fixes

• BZ - 1054590 - irqbalance --oneshot not working

CVEs

(none)

References

(none)

Red Hat Enterprise Linux Server - Extended Update Support 6.4

SRPM
irqbalance-1.0.4-6.el6_4.src.rpm	SHA-256: b12d85b05c3c04aa0a1a1e639c9ae062d52c0e65bfbb4265b2d1e5ec74ac59b7
x86_64
irqbalance-1.0.4-6.el6_4.x86_64.rpm	SHA-256: dc2fe5e7b9f99feeece9f93bd629da49544e6c854662eb71bd61a9d73afd22f2
irqbalance-debuginfo-1.0.4-6.el6_4.x86_64.rpm	SHA-256: 467fa36a1a7439f04b8622190e45945b5c3d5215d9ab76418771fc899506a924
i386
irqbalance-1.0.4-6.el6_4.i686.rpm	SHA-256: 1fbc61bee64c9b77f841e536298eb6600660d9c8c685838712c76de3c646edbb
irqbalance-debuginfo-1.0.4-6.el6_4.i686.rpm	SHA-256: b0b0a4a7a9aca98b846f176a86500d0b31f15dde7d422deddb7b016873cbf01f

Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.4

SRPM
irqbalance-1.0.4-6.el6_4.src.rpm	SHA-256: b12d85b05c3c04aa0a1a1e639c9ae062d52c0e65bfbb4265b2d1e5ec74ac59b7
ppc64
irqbalance-1.0.4-6.el6_4.ppc64.rpm	SHA-256: 37a8ac3e9be8b70843f870327fdb229af142d1d7920305da560ac104f1dff030
irqbalance-debuginfo-1.0.4-6.el6_4.ppc64.rpm	SHA-256: 0b4787e733bd384d498f4b45ea002b8058248b8444693a72c3400080a5a0be20

Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.4

SRPM
irqbalance-1.0.4-6.el6_4.src.rpm	SHA-256: b12d85b05c3c04aa0a1a1e639c9ae062d52c0e65bfbb4265b2d1e5ec74ac59b7
x86_64
irqbalance-1.0.4-6.el6_4.x86_64.rpm	SHA-256: dc2fe5e7b9f99feeece9f93bd629da49544e6c854662eb71bd61a9d73afd22f2
irqbalance-debuginfo-1.0.4-6.el6_4.x86_64.rpm	SHA-256: 467fa36a1a7439f04b8622190e45945b5c3d5215d9ab76418771fc899506a924
i386
irqbalance-1.0.4-6.el6_4.i686.rpm	SHA-256: 1fbc61bee64c9b77f841e536298eb6600660d9c8c685838712c76de3c646edbb
irqbalance-debuginfo-1.0.4-6.el6_4.i686.rpm	SHA-256: b0b0a4a7a9aca98b846f176a86500d0b31f15dde7d422deddb7b016873cbf01f

Red Hat Gluster Storage Server for On-premise 2.1

SRPM
irqbalance-1.0.4-6.el6_4.src.rpm	SHA-256: b12d85b05c3c04aa0a1a1e639c9ae062d52c0e65bfbb4265b2d1e5ec74ac59b7
x86_64
irqbalance-1.0.4-6.el6_4.x86_64.rpm	SHA-256: dc2fe5e7b9f99feeece9f93bd629da49544e6c854662eb71bd61a9d73afd22f2
irqbalance-debuginfo-1.0.4-6.el6_4.x86_64.rpm	SHA-256: 467fa36a1a7439f04b8622190e45945b5c3d5215d9ab76418771fc899506a924

Red Hat Storage for Public Cloud (via RHUI) 2.1

SRPM
irqbalance-1.0.4-6.el6_4.src.rpm	SHA-256: b12d85b05c3c04aa0a1a1e639c9ae062d52c0e65bfbb4265b2d1e5ec74ac59b7
x86_64
irqbalance-1.0.4-6.el6_4.x86_64.rpm	SHA-256: dc2fe5e7b9f99feeece9f93bd629da49544e6c854662eb71bd61a9d73afd22f2
irqbalance-debuginfo-1.0.4-6.el6_4.x86_64.rpm	SHA-256: 467fa36a1a7439f04b8622190e45945b5c3d5215d9ab76418771fc899506a924

Red Hat Enterprise Linux EUS Compute Node 6.4

SRPM
irqbalance-1.0.4-6.el6_4.src.rpm	SHA-256: b12d85b05c3c04aa0a1a1e639c9ae062d52c0e65bfbb4265b2d1e5ec74ac59b7
x86_64
irqbalance-1.0.4-6.el6_4.x86_64.rpm	SHA-256: dc2fe5e7b9f99feeece9f93bd629da49544e6c854662eb71bd61a9d73afd22f2
irqbalance-debuginfo-1.0.4-6.el6_4.x86_64.rpm	SHA-256: 467fa36a1a7439f04b8622190e45945b5c3d5215d9ab76418771fc899506a924

Red Hat Enterprise Linux Server - AUS 6.4

SRPM
irqbalance-1.0.4-6.el6_4.src.rpm	SHA-256: b12d85b05c3c04aa0a1a1e639c9ae062d52c0e65bfbb4265b2d1e5ec74ac59b7
x86_64
irqbalance-1.0.4-6.el6_4.x86_64.rpm	SHA-256: dc2fe5e7b9f99feeece9f93bd629da49544e6c854662eb71bd61a9d73afd22f2
irqbalance-debuginfo-1.0.4-6.el6_4.x86_64.rpm	SHA-256: 467fa36a1a7439f04b8622190e45945b5c3d5215d9ab76418771fc899506a924