1.164. xen

Updated xen packages that fix several bugs and add enhancements are now available.

The xen packages contain administration tools and the xend service for managing the kernel-xen kernel for virtualization on Red Hat Enterprise Linux.

These updated packages include numerous bug fixes for and enhancements to the xen packages. Space precludes documenting each of these changes in this advisory and users are directed to the Virtualization chapter in the Red Hat Enterprise Linux 5.6 Technical Notes:

http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/5.6_Relea se_Notes/ar01s02.html

All Red Hat Enterprise Linux 5 users are advised to install these updated packages, which fix the bugs and add the enhancements noted in the Red Hat Enterprise Linux 5.6 Technical Notes. The system must be rebooted for this update to take effect.

Updated Xen packages that fix a bug are now available for Red Hat Enterprise Linux.

Xen is a high performance and secure open source virtualization framework. Virtualization lets users run guest operating systems in virtual machines on top of a host operating system.

These updated Xen packages resolve the following issue:

* xenstore slowly but consistently leaked memory. This caused problems on systems that ran for a long time. These packages remove this leak. ( BZ#616091)

All Xen users are advised to install these updates, which resolve this issue.

Updated xen packages that add support for the HLT instruction emulation and the assignment of the Intel 82599 Virtual Function to the Hardware Virtual Machine (HVM) guest.

Xen is a high performance and secure open source virtualization framework. Virtualization allows users to run guest operating systems in virtual machines on top of a host operating system.

These updated xen packages fix the following bugs:

* due to the missing HLT (halt) instruction emulation in the VMXAssist real-mode emulator, certain versions of the SYSLINUX boot loader could have caused the guest operating system (domU) to stop responding. With this update, the HLT instruction emulation has been added, and all versions of SYSLINUX now boot properly. ( BZ#593230)

* previously, the PCIe Capability Structure was set to 0. As a result, it was impossible to assign the Niantic Virtual Function (VF) to the Hardware Virtual Machine (HVM) guest. This has been fixed, and the Niantic VF can now be assigned as expected. ( BZ#599018)

All Xen users should install this update, which addresses these issues.

An updated xen package that fixes a problem with broadcast packets not travelling from dom0 to domU instances is now available.

Xen is a high performance and secure open source virtualization framework. Virtualization allows users to run guest operating systems in virtual machines on top of a host operating system.

These updated xen packages fix the following bug:

* when the xen bridge ran on an arp-monitored bond device, the local routing table did not properly flush IP addresses. Consequently, broadcast packets sent from dom0 were not received by domUs running on the same system. With this update the routing table is cleaned up properly and packets from dom0 are received by domU instances as expected. ( BZ#592219)

All Xen users, particularly those running guest instances of Windows, should install this update, which addresses this issue.

An updated xen package that changes some PCI device classes, ensuring the Storage Query Property test (part of the Windows Logo test) are passed, is now available.

Xen is a high performance and secure open source virtualization framework. Virtualization allows users to run guest operating systems in virtual machines on top of a host operating system.

These updated xen packages fix the following bug:

* previously, some para-virtualized drivers returned a STORAGE_BUS_TYPE (SCSI in this case) that was inconsistent with its PCI class code. They, consequently, failed the Storage Query Property test (part of the Windows Logo test). With this update, these drivers' class and sub-class were changed from "Unclassified" and "Other" to "Storage" and "SCSI" respectively. This is consistent with their STORAGE_BUS_TYPE and they now pass the Storage Query Property test. ( BZ#580398)

All Xen users, particularly those running guest instances of Windows, should install this update, which addresses this issue.