Issued:

2012-12-19

Updated:

2012-12-19

RHBA-2012:1595 - libvirt bug fix update

Synopsis

libvirt bug fix update

Type/Severity

Bug Fix Advisory

Topic

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

Description

The libvirt library is a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remote management of virtualized systems.

This update fixes the following bugs:

• The AMD FX series processors contain "modules" which are reported by the kernel as both threads and cores. Previously, the processor topology detection code in libvirt was unable to detect these modules. Consequently, libvirt reported twice the actual number of processors. With this update, topologies that add up to the total number of processors reported by the system are properly reported even though the actual topology has to be checked in the output of the virCapabilities() function.

Note that the capability output for topology detection purposes should be used due to performance reasons. The NUMA topology has high impact on performance but the impact of the physical topology can differ from that. (BZ#877024)

• Whenever the virDomainGetXMLDesc() function was executed on a domain that was unresponsive, the call also became unresponsive. With this update, QEMU sends the BALLOON_CHANGE event when memory usage on a domain changes so that virDomainGetXMLDesc() no longer has to query an unresponsive domain. As a result, virDomainGetXMLDesc() calls no longer hang in the described scenario. (BZ#884713)

All users of libvirt are advised to upgrade to these updated packages, which fix these bugs.

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 https://access.redhat.com/knowledge/articles/11258

Affected Products

Updated Packages

• libvirt-0.9.10-21.el6_3.7.ppc64.rpm
• libvirt-lock-sanlock-0.9.10-21.el6_3.7.x86_64.rpm
• libvirt-0.9.10-21.el6_3.7.x86_64.rpm
• libvirt-devel-0.9.10-21.el6_3.7.x86_64.rpm
• libvirt-0.9.10-21.el6_3.7.i686.rpm
• libvirt-python-0.9.10-21.el6_3.7.x86_64.rpm
• libvirt-python-0.9.10-21.el6_3.7.ppc64.rpm
• libvirt-devel-0.9.10-21.el6_3.7.ppc64.rpm
• libvirt-client-0.9.10-21.el6_3.7.s390x.rpm
• libvirt-devel-0.9.10-21.el6_3.7.s390x.rpm
• libvirt-python-0.9.10-21.el6_3.7.s390x.rpm
• libvirt-debuginfo-0.9.10-21.el6_3.7.ppc.rpm
• libvirt-client-0.9.10-21.el6_3.7.ppc.rpm
• libvirt-client-0.9.10-21.el6_3.7.ppc64.rpm
• libvirt-debuginfo-0.9.10-21.el6_3.7.s390.rpm
• libvirt-debuginfo-0.9.10-21.el6_3.7.ppc64.rpm
• libvirt-client-0.9.10-21.el6_3.7.s390.rpm
• libvirt-devel-0.9.10-21.el6_3.7.s390.rpm
• libvirt-devel-0.9.10-21.el6_3.7.i686.rpm
• libvirt-0.9.10-21.el6_3.7.src.rpm
• libvirt-debuginfo-0.9.10-21.el6_3.7.x86_64.rpm
• libvirt-client-0.9.10-21.el6_3.7.i686.rpm
• libvirt-python-0.9.10-21.el6_3.7.i686.rpm
• libvirt-client-0.9.10-21.el6_3.7.x86_64.rpm
• libvirt-devel-0.9.10-21.el6_3.7.ppc.rpm
• libvirt-debuginfo-0.9.10-21.el6_3.7.s390x.rpm
• libvirt-debuginfo-0.9.10-21.el6_3.7.i686.rpm
• libvirt-0.9.10-21.el6_3.7.s390x.rpm

Fixes

• This content is not included.BZ - 877024
• This content is not included.BZ - 884713

CVEs

(none)

References

(none)

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.