RHBA-2013:0584 - Bug Fix Advisory

Topic

Updated kernel packages that fix two bugs are now available for Red Hat
Enterprise Linux 6 Extended Update Support.

Description

The kernel packages contain the Linux kernel, which is the core of any Linux
operating system.

This update also fixes the following bugs:

• Previously, NFS mounts failed against Microsoft Windows 8 servers, because the

Windows server contained support for the minor version 1 (v4.1) of the NFS
version 4 protocol only, along with support for versions 2 and 3. The lack of
the minor version 0 (v4.0) support caused Red Hat Enterprise Linux 6 clients to
fail instead of rolling back to version 3 as expected. This update fixes this
bug and mounting an NFS export works as expected. (BZ#891862)

• If Time Stamp Counter (TSC) kHz calibration failed, usually on a Red Hat

Enterprise Linux 6 virtual machine running inside of QEMU, the
init_tsc_clocksource() function divided by zero. This was due to a missing check
to verify if the tsc_khz variable is of a non-zero value. Consequently, booting
the kernel on such a machine led to a kernel panic. This update adds the missing
check to prevent this problem and TSC calibration functions normally.
(BZ#905433)

Users should upgrade to these updated packages, which contain backported patches
to fix these bugs. The system must be rebooted for this update to take effect.

Solution

Users should upgrade to these updated packages, which contain backported patches
to correct these issues. The system must be rebooted for this
update to take effect.

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/knowledge/articles/11258

To install kernel packages manually, use "rpm -ivh [package]". Do not
use "rpm -Uvh" as that will remove the running kernel binaries from
your system. You may use "rpm -e" to remove old kernels after
determining that the new kernel functions properly on your system.

Affected Products

• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.2 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.2 i386
• Red Hat Enterprise Linux Server - AUS 6.2 x86_64
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.2 s390x
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.2 ppc64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.2 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.2 i386
• Red Hat Storage 2.0 x86_64
• Red Hat Gluster Storage Server for On-premise 2.0 x86_64
• Red Hat Storage for Public Cloud (via RHUI) 2.0 x86_64

Fixes

CVEs

(none)

References

(none)