RHBA-2012:1582 - Bug Fix Advisory

Topic

Updated qemu-kvm packages that fix a bug are now available for Red Hat
Enterprise Linux 6.

Description

KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux
on AMD64 and Intel 64 systems. The qemu-kvm packages form the user-space
component for running virtual machines using KVM.

This update fixes the following bug:

• When the vdsm daemon was running on a blocking NFS storage, it attempted to

continuously access the storage. Consequently, vdsm could become unresponsive
for almost an hour. This bug has been fixed and vdsm is now able to recover
within a few minutes in the described scenario. (BZ#886101)

All users of qemu-kvm are advised to upgrade to these updated packages, which
fix this bug. After installing this update, shut down all running virtual
machines. Once all virtual machines have shut down, start them again for this
update to take effect.

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/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.3 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Desktop 6 x86_64
• 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 - Extended Update Support from RHUI 6.3 x86_64

Fixes

• BZ - 886101 - vdsm: vdsm is stuck in recovery for almost an hour on NFS storage with running vm's when blocking storage from host

CVEs

(none)

References

(none)