RHBA-2016:0473 - Bug Fix Advisory

Topic

Updated kexec-tools packages that fix one bug are now available for Red Hat
Enterprise Linux 6.

Description

The kexec-tools packages contain the /sbin/kexec binary and utilities that
together form the user-space component of the kernel's kexec feature. The
/sbin/kexec binary facilitates a new kernel to boot using the kernel's kexec
feature either on a normal or a panic reboot. The kexec fastboot mechanism
allows booting a Linux kernel from the context of an already running kernel.

This update fixes the following bug:

• On RHEV using a real interface for one of its physical interfaces, when a new

guest<n> is created, RHEV creates a new vnet<n> for it dynamically, and adds
"vnet<n>" to the "rhevm" bridge. Previously, when the network was configured in
the kdump.config file, the mkdumprd service failed when handling the "rhevm"
bridge because there was no ifcfg-vnet<n> file created for its vnet<n> bridge
member. With this update, mkdumprd ignores any "vnet<n>" in the bridge, and
mkdumprd thus works properly. As a result, the bridge and kdump on RHEV work as
expected, and mkdumprd no longer fails on RHEV hosts with running VMs.
(BZ#1305481)

Users of kexec-tools are advised to upgrade to these updated packages, which fix
this bug.

Solution

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

For details on how to apply this update, refer to:

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 for x86_64 - Extended Update Support 6.7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.7 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• 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 IBM z Systems - Extended Update Support 6.7 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.7 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• 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 6 i386
• Red Hat Enterprise Linux for SAP Solutions for x86_64 - Extended Update Support 6.7 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.7 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.7 i386
• Red Hat Enterprise Linux EUS Compute Node 6.7 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 1305481 - mkdumprd fails on RHEV hosts with running VMs

CVEs

(none)

References

(none)