[El-errata] ELBA-2012-2023 Oracle Linux 6 Unbreakable Enterprise kernel bug fix update

[Errata Announcements for Oracle Linux]

Oracle Linux Bug Fix Advisory ELBA-2012-2023

The following updated rpms for Oracle Linux 6 have been uploaded to the 
Unbreakable Linux Network:

i386:
kernel-uek-2.6.39-200.29.1.el6uek.i686.rpm
kernel-uek-debug-2.6.39-200.29.1.el6uek.i686.rpm
kernel-uek-debug-devel-2.6.39-200.29.1.el6uek.i686.rpm
kernel-uek-devel-2.6.39-200.29.1.el6uek.i686.rpm
kernel-uek-doc-2.6.39-200.29.1.el6uek.noarch.rpm
kernel-uek-firmware-2.6.39-200.29.1.el6uek.noarch.rpm

x86_64:
kernel-uek-firmware-2.6.39-200.29.1.el6uek.noarch.rpm
kernel-uek-doc-2.6.39-200.29.1.el6uek.noarch.rpm
kernel-uek-2.6.39-200.29.1.el6uek.x86_64.rpm
kernel-uek-devel-2.6.39-200.29.1.el6uek.x86_64.rpm
kernel-uek-debug-devel-2.6.39-200.29.1.el6uek.x86_64.rpm
kernel-uek-debug-2.6.39-200.29.1.el6uek.x86_64.rpm


SRPMS:
http://oss.oracle.com/ol6/SRPMS-updates/kernel-uek-2.6.39-200.29.1.el6uek.src.rpm


Users with Oracle Linux Premier Support can now use Ksplice to patch
against this  Bug Fix Advisory.

We recommend that all users of  Oracle Linux 6 install these updates.

Users of Ksplice Uptrack can install these updates by running :

# /usr/sbin/uptrack-upgrade -y
On systems that have "autoinstall = yes" in /etc/uptrack/uptrack.conf,
these updates will be installed automatically and you do not need to
take any additional action.

Description of changes:

* Use random access mode for dm-nfs backing file.

dm-nfs backing file was not opened with random access mode, which would 
lead to
very slow operation when trying to sync the readahead buffer between memory
and the backing file.


* Load spike in leap second insertion.

A missing call to clock_was_set() in the leap second insertion code
meant that the hrtimer subsystem did not have it's timers updated
correctly, resulting in early expiry of timers and a higher load by
certain applications.

[2.6.39-200.29.1.el6uek]
- 3.0.x: hrtimer: Update hrtimer base offsets each hrtimer_interrupt 
(John Stultz)
- 3.0.x: time: Fix leapsecond triggered hrtimer/futex load spike issue 
(John Stultz)
- 3.0.x: hrtimer: Fix clock_was_set so it is safe to call from irq 
context (John Stultz)
- Revert "Fix clock_was_set so it is safe to call from atomic"
- Revert "Fix leapsecond triggered hrtimer/futex load spike issue"
- Revert "3.0.x: hrtimer: Update hrtimer base offsets each 
hrtimer_interrupt"

[2.6.39-200.28.1.el6uek]
- Update hrtimer base offsets each hrtimer_interrupt(John Stultz) 
[Orabug: 14264454]

[2.6.39-200.27.1.el6uek]
- SPEC: replace kernel-ovs to kernel-uek (Guru Anbalagane) [Orabug: 
14238939]

[2.6.39-200.26.1.el6uek]
- Fix leapsecond triggered hrtimer/futex load spike issue (John Stultz)
- Fix clock_was_set so it is safe to call from atomic (John Stultz)

[2.6.39-200.25.1.el6uek]
- dm-nfs: force random mode for the backend file (Joe Jin) [Orabug: 
14092678]