Article ID: 8208, created on Mar 16, 2010, last review on Apr 29, 2014

  • Applies to:
  • Virtuozzo containers for Linux 4.0

Release notes

--------------------------------------------------------------------------------
Synopsis:         New Parallels Virtuozzo Containers 4.0 kernel provides a
                           fix for load average statistics
Issue date:       2010-02-12
Product:            Parallels Virtuozzo Containers 4.0
Keywords:        'bug fixes'

--------------------------------------------------------------------------------

This document provides information on the new Virtuozzo Containers 4.0 kernel,
version 2.6.18-028stab068.5.

© 1999-2010 Parallels, Inc. All rights reserved.

--------------------------------------------------------------------------------
TABLE OF CONTENTS

1. About This Release
2. Updates Description
3. Bugs Fixed
4. Obtaining New Kernel
5. Installing New Kernel
6. Required RPMs
7. Reference List

--------------------------------------------------------------------------------

1. ABOUT THIS RELEASE

The current update for the Virtuozzo Containers 4.0 kernel provides a new kernel
based on the Red Hat 5 kernel (2.6.18-164.11.1.el5). The updated kernel includes
a fix for load average statistics shown inside containers

--------------------------------------------------------------------------------

2. UPDATES DESCRIPTION

The updated Parallels Virtuozzo Containers 4.0 kernel includes a fix for
the following issue:

- The load average statistics is shown in the /proc/loadavg or displayed by
the uptime shell command. Due to a bug in PVC kernel the numbers reported
inside a container could be negative.

We recommend that all Parallels Virtuozzo Containers 4.0 users update their
kernel to the latest version.
--------------------------------------------------------------------------------

3. BUGS FIXED

The following bug found by OpenVZ users from the previous release have been
fixed in the new Virtuozzo Containers 4.0 kernel:

- #1449: Strange load values since RHEL 2.6.18-068.3

--------------------------------------------------------------------------------

4. OBTAINING NEW KERNEL

You can download and install this kernel update using the vzup2date utility
included in the Parallels Virtuozzo Containers 4.0 distribution set.

--------------------------------------------------------------------------------

5. INSTALLING NEW KERNEL

To install the update, perform the following operations:

I. Use the "rpm -ihv" command to install the new kernel and Virtuozzo modules.

# rpm -ivh vzkernel-2.6.18-028stab068.5.i686.rpm \
vzmodules-2.6.18-028stab068.5.i686.rpm
Preparing...                ################################# [100%]
    1:vzkernel               ################################# [50%]
    2:vzmodules              ################################# [100%]

    Please DO NOT USE the "rpm -Uhv" command to install the kernel. Otherwise,
    all the kernels previously installed on your system may be removed from
    the Hardware Node.

II. You can adjust your boot loader configuration file to have the new kernel
    loaded by default. If you use the LILO bootloader, please do not forget to
    execute the 'lilo' command to write the changes to the boot sector:

     # lilo
     Added Virtuozzo2 *
     Added Virtuozzo1
     Added linux
     Added linux-up

III. Reboot your computer with the "shutdown -r now" command to boot the new
     kernel.

--------------------------------------------------------------------------------

6. REQUIRED RPMS

Depending on the processor installed on the Hardware Node, the following RPM
packages are included in the kernel update:

x86 kernels:

- SMP:
   vzkernel-2.6.18-028stab068.5.i686.rpm
   vzmodules-2.6.18-028stab068.5.i686.rpm

- Enterprise:
   vzkernel-ent-2.6.18-028stab068.5.i686.rpm
   vzmodules-ent-2.6.18-028stab068.5.i686.rpm

- Enterprise with the 4GB split feature disabled:
   vzkernel-PAE-2.6.18-028stab068.5.i686.rpm
   vzmodules-PAE-2.6.18-028stab068.5.i686.rpm


x86_64 kernels:

- SMP:
   vzkernel-2.6.18-028stab068.5.x86_64.rpm
   vzmodules-2.6.18-028stab068.5.x86_64.rpm

--------------------------------------------------------------------------------

7. REFERENCE LIST

http://bugzilla.openvz.org/show_bug.cgi?id=1449

35c16f1fded8e42577cb3df16429c57a d02f9caf3e11b191a38179103495106f e8e50b42231236b82df27684e7ec0beb 2897d76d56d2010f4e3a28f864d69223

Email subscription for changes to this article
Save as PDF