RHBA-2013:0323 - Bug Fix Advisory

Topic

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

Description

The libqb packages provide a library with the primary purpose of providing high
performance client server reusable features, such as high performance logging,
tracing, inter-process communication, and polling.

The libqb packages have been upgraded to upstream version 0.14.2, which provides
a number of bug fixes and enhancements over the previous version. (BZ#845275)

This update also fixes the following bug:

• Previously, a timeout argument given to the qb_ipcc_recv() API function was

not passed to poll() while waiting for a reply. Consequently, this function
could consume nearly 100% CPU resources and affect the pacemaker utility. This
bug has been fixed by passing the timeout value to poll() in qb_ipcc_recv(). As
a result, the timeout period is honored as expected and pacemaker works
correctly in such a case. (BZ#869446)

All libqb users 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/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux High Availability for x86_64 6 x86_64
• Red Hat Enterprise Linux High Availability for x86_64 6 i386
• Red Hat Enterprise Linux Resilient Storage for x86_64 6 x86_64
• Red Hat Enterprise Linux Resilient Storage for x86_64 6 i386
• Red Hat Enterprise Linux High Availability (for RHEL Server) from RHUI 6 x86_64
• Red Hat Enterprise Linux High Availability (for RHEL Server) from RHUI 6 i386
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 6 x86_64
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 6 i386

Fixes

• BZ - 869446 - Failure in ipc receive reply function can consume nearly 100% CPU resources

CVEs

(none)

References

(none)