RHBA-2009:1423 - Bug Fix Advisory

Topic

Updated kvm packages that resolve an issue are now available.

Description

KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware.

These updated kvm packages fix the following bug:

• rebooting a KVM guest domain could cause the guest to fail to receive keyboard and mouse input

following the reboot. This has been fixed by reinitializing keyboard and mouse state in the guest
after it reboots, which resolves the issue. (BZ#517855)

Note: after installing these updated packages, the following procedure should be carried out to
ensure that the fix takes effect:

1. Stop all KVM guest virtual machines (VMs).

2. Either reboot the hypervisor machine, or, as the superuser, remove (using "modprobe -r [module]")
and reload (using "modprobe [module]") all of the following modules which are currently running
(determined using "lsmod"): kvm, ksm, kvm-intel or kvm-amd.

3. Restart the KVM guest VMs.

All users of kvm are advised to upgrade to these updated packages, which resolve this issue.

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
http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Workstation 5 x86_64

Fixes

• BZ - 517855 - guest not accepting keystrokes or mouse clicks after reboot

CVEs

(none)

References

(none)