Oracle Linux 5.10 Release Notes


Updated October 2013

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


    Introduction

This document covers the following topics regarding Oracle Linux 5.10.

  * Changes from the upstream release <#Changes_from_Upstream_Release>
  * New packages added in this release
    <#New_Packages_added_in_this_release>
  * Packages added by Oracle <#New_Packages_added_>
  * Kernel and Driver Updates <#Kernel_and_Driver_Updates>
      o Red Hat Compatible Kernel <#Unmodified_kernel>
      o Red Hat Compatible Kernel with Bug Fixes by Oracle
        <#oracle_modified_kernel>
          + Bug Fixes <#oracle_bug_fixes>
          + Installation <#oracle_modified_kernel_install>
      o Unbreakable Enterprise Kernel <#unbreakable_ent_kernel>
          + Introduction <#ook_introduction>
          + Notable Changes <#ook_notable_changes>
          + Driver Updates <#ook_driver_updates>
          + Notable Bug Fixes <#ook_notable_bug_fixes>
          + Technology Previews <#ook_technology_preview>
          + Compatibility <#ook_compatibility>
  * Technology Preview Features for Oracle Linux 5 <#technology_preview>
  * Known Issues for Oracle Linux 5.10 <#known_issues>
  * Configuring Updates for Oracle Linux 5 Update 10 <#updates>

For the latest updates please refer to the online version of these
release notes available at:

http://oss.oracle.com/el5/docs/

*NOTE*: An upgrade of Oracle Linux from a beta release is not supported.
Further, an in-place upgrade between major versions of Oracle Linux is
not supported. Oracle does not recommend an upgrade from earlier major
versions of Oracle Linux even though anaconda provides an option to do
this upgrade. A fresh installation is strongly recommended rather than a
system upgrade between major versions.


    Changes from the Upstream Release

The following RPMs are modified from the upstream release. All changes
are trademark and look/feel related unless otherwise noted below under
the specific RPM.

  * anaconda --- Path of the Distribution changed from RedHat to
    Enterprise on the install CDs
  * anacron
  * audit
  * autofs
  * basesystem
  * booty
  * bug-buddy
  * clustermon
  * cmirror-kmod
  * conga
  * coreutils
  * cpuspeed
  * crash
  * cyrus-imapd
  * device-mapper-multipath
  * e2fsprogs
  * eclipse
  * efax
  * eruby
  * ethtool
  * evolution
  * filesystem
  * firefox
  * firstboot
  * freeipmi
  * fuse
  * gdm
  * gfs-kmod
  * gnbd-kmod
  * gnome-desktop
  * gnome-session
  * gpm
  * grub
  * gstreamer
  * gzip
  * httpd
  * initscripts
  * iotop
  * iptables
  * iptraf
  * irqbalance
  * iscsi-initiator-utils
  * java-1.6.0-openjdk
  * java-1.7.0-openjdk
  * jpackage-utils
  * jsch
  * kdbg
  * kdeadmin
  * kdeartwork
  * kdebase
  * kdelibs
  * kexec-tools
  * kudzu
  * kvm
  * libitm
  * libtevent
  * libvirt
  * libwvstreams
  * libxml2
  * libxslt
  * lsscsi
  * lvm2
  * mcelog
  * memtest86+
  * microcode_ctl
  * mkbootdisk
  * mkinitrd
  * net-snmp
  * nmap
  * numactl
  * openldap24-libs
  * openoffice.org
  * pango
  * pciutils
  * perl-XML-Simple
  * piranha
  * pirut
  * procmail
  * psacct
  * python-virtinst
  * qt4
  * quota
  * redhat-artwork
  * redhat-lsb
  * redhat-release
  * redhat-rpm-config
  * rhgb
  * rhpl
  * rhpxl
  * rpm
  * rsyslog
  * rsyslog5
  * setroubleshoot
  * sgml-common
  * sgpio
  * sos
  * squirrelmail
  * stunnel
  * sysstat
  * system-config-bind
  * system-config-date
  * system-config-httpd
  * system-config-kickstart
  * system-config-netboot
  * system-config-network
  * system-config-nfs
  * system-config-printer
  * system-config-samba
  * system-config-services
  * system-config-soundcard
  * system-config-users
  * tcpdump
  * tftp
  * thunderbird
  * tog-pegasus
  * tux
  * udev
  * unzip
  * up2date
  * util-linux
  * w3m
  * wireshark
  * xorg-x11-drv-evdev
  * xorg-x11-server
  * xulrunner
  * yum
  * yum-rhn-plugin


        The following packages have been removed:

  * Cluster_Administration
  * Deployment_Guide
  * Global_File_System
  * Virtualization
  * redhat-logos ---Replaced by oracle-logos
  * redhat-release-notes-5Server ---Replaced by
    enterprise-release-notes-5Server
  * redhat-support-lib-python
  * redhat-support-tool
  * rhn-setup
  * rhn-setup-gnome
  * rhn-client-tools ---Replaced by up2date
  * rhnsd ---Replaced by up2date
  * rhn-check
  * s390utils
  * crash-spu-commands
  * libspe2
  * compat-gcc-295
  * iprutils
  * libehca
  * libica
  * librtas
  * openssl-ibmca
  * ppc64-utils
  * python-rhsm
  * subscription-manager
  * subscription-manager-migration-data
  * virt-who
  * yaboot


        The following documentation packages have been removed:

  * Deployment_Guide
  * Virtualization
  * Global_File_System
  * Cluster_Administration


    New Packages added in this release

The following packages were added upstream for this release (5.10) which
were not in the previous update release (5.9)

  * gcc-libraries
  * mysql51
  * mysql51-mysql
  * mysql55
  * mysql55-mysql
  * python-dateutil
  * python-kerberos
  * python-lxml


    Packages added by Oracle

The following packages have been added to the release:

  * aic94xx-firmware
  * atmel-firmware
  * bfa-firmware
  * crash-6.0.4-2.0.3.el5
  * device-mapper-multipath-0.4.9-64.0.6.el5
  * enterprise-release
  * enterprise-release-notes-5Server
  * ipw2100-firmware
  * ipw2200-firmware
  * ivtv-firmware
  * iwl1000-firmware
  * iwl3945-firmware
  * iwl4965-firmware
  * iwl5000-firmware
  * iwl5150-firmware
  * iwl6000-firmware
  * iwl6050-firmware
  * kernel-uek
  * kexec-tools-2.0.3-4.0.4.el5
  * latencytop
  * libertas-usb8388-firmware
  * netxen-firmware
  * ocfs2
  * ocfs2-tools
  * oracle-linux
  * oracle-logos
  * oracle-validated-1.0.0-32.el5
  * oracle-validated-1.1.0-18.el5
  * oracleasm
  * oracleasm-support
  * oraclelinux-release
  * ql2xxx-firmware
  * rds-tools-2.0.7-1.12.el5
  * reflink
  * rt61pci-firmware
  * rt73usb-firmware
  * up2date
  * zd1211-firmware


    Kernel and Driver Updates

Oracle Linux 5.10 ships with the following kernel packages

  * Unbreakable Enterprise kernel [kernel-uek-2.6.39-400.209.1.el5uek]
      o Installed and booted by default
  * Red Hat compatible Kernel [kernel-2.6.18-371.el5].
      o Installed by default
  * Red Hat compatible Kernel with bug fixes added by Oracle
    [kernel-2.6.18-371.0.0.0.1.el5]
      o This kernel is available on x86 and x86-64, can only be
        installed manually (see below for details)

*Note*:Oracle Linux 5.10 includes both a 32 bit and a 64 bit Unbreakable
Enterprise Kernel. Both Unbreakable Enterprise kernel and Red Hat
compatible kernel are installed and the system boots with Unbreakable
Enterprise kernel by default. If needed /etc/grub.conf can be modified
to make the system boot with Red Hat compatible kernel by default.


      Red Hat Compatible Kernel

This section covers significant changes in the Red Hat compatible kernel
in this release.


        Driver Updates from the upstream distribution provider

*Storage*

  * The mptfusion driver has been updated to version 3.04.20, which adds
    the following device ID: SAS1068_820XELP


      Red Hat Compatible Kernel with Bug Fixes by Oracle

This is the Red Hat compatible kernel with critical bug fixes produced
by Oracle.


        Bug Fixes (includes all Oracle bug fixes made to the Red Hat
        Compatible Kernel across all releases)

  * i386: fix MTRR code [orabug 15862649]
  * [oprofile] x86, mm:Add_get_user_pages_fast() [orabug 14277030]
  * [oprofile] export_get_user_pages_fast() function [orabug 14277030]
  * [oprofile] x86: Fix nmi-unsafe callgraph support [orabug 14277030]
  * [oprofile] Use KM_NMI slot for kmap_atomic [orabug 14277030]
  * [oprofile] i386 add get_user_pages_fast support [orabug 14277030]
  * [kernel] Initialize the local uninitialized variable stats [orabug
    14051367]
  * [fs] JBD:make jbd support 512B blocks correctly for OCFS2 [orabug
    13477763]
  * [x86] fxi fpu context corrupt when preempt in signal context [orabug
    14038272]
  * [mm] fix hugetlb page leak[orabug 12375075]
  * fix ia64 build error due to add-support-above-32-vcpus.patch
  * [x86] use dynamic vcpu_info remap to support more than 32 vcpus
  * [x86] fix lvt0 reset when hvm boot up with noapic param
  * [scsi] Remove printk's when doing I/O to a dead device [orabug 12342275]
  * [char] ipmi: fix IPMI errors due to timing problems [orabug 12561346]
  * [scsi] Fix race when removing SCSI devices [orabug 12404566]
  * [net] Redo the broken redhat netconsole over bonding [orabug 12740042]
  * [fs] nfs: Fix_put_nfs_open_context() NULL pointer panic [orabug
    12687646]
  * fix filp_close() race [orabug 10335998]
  * make xenkbd.abs_pointer=1 by default [orabug 67188919]
  * [xen] check to see if hypervisor supports memory reservation change
    [orabug 7556514]
  * [net] Enable entropy for bnx2, bnx2x, e1000e, igb, ixgb, ixgbe,
    ixgbevf[orabug 10315433]
  * [net] Add xen pv netconsole support [orabug 6993043] [bz 7258]
  * [mm] Patch shrink_zone to yield during severe mempressure events,
    avoiding hands and evictions [orabug 6086839]
  * [mm] Enhance shrink_zone patch allow full swap utilization and also
    be NUMA-aware [orabug 9245919]
  * fix aacraid not to reset during kexec [orabug 8516042]
  * [xen]PVHVM guest with PoD crashes under memory pressure[orabug 9107465]
  * [xen]PV guest with FC HBA hangs during shutdown [orabug 9764220]
  * Support 256GB+ memory for pv guest[orabug 9450615]
  * Fix overcommit memory to use percpu_counter for el5 [orabug 6124033]
  * [ipmi]Make configurable timeouts for kcs of ipmi [orabug 9752208]
  * [ib]Fix memory corruption [orabug 9972346]
  * [usb]usbcore: fix endpoint device creation [orabug 14795203]
  * [usb]usbcore: fix refcount bug in endpoint removal [orabug 14795203]


        Installation

The Red Hat Compatible Kernel with Bug Fixes by Oracle must be manually
installed. To install this kernel, follow these steps:

 1. Mount Oracle Linux 5.10 DVD
 2. Copy the RPMs from mount_point/Server/oracle_updated to your system
 3. Install required kernel using the rpm command, e.g.
    # rpm -ihv kernel-2.6.18-371.0.0.0.1.el5.x86_64.rpm


    Unbreakable Enterprise Kernel


        Introduction

The Unbreakable Enterprise Kernel Release 2 is Oracle's second major
release of its heavily tested and optimized operating system kernel for
Oracle Linux 5 and Oracle Linux 6. It is based on the mainline Linux 3.0
version *3.0.36*. It contains a large number of improvements and new
features that have been incorporated into mainline Linux since the first
version of the Unbreakable Enterprise Kernel. Please see the initial
Oracle Unbreakable Enterprise Kernel Release 2 Release Notes
<https://oss.oracle.com/ol6/docs/RELEASE-NOTES-UEK2-en.html> for a
detailed description of these changes.

The 2.6.39-400.209.1 release is the fifth quarterly driver update
release, which includes bug and security fixes. The full release notes,
including known issues, can be viewed at Oracle Unbreakable Enterprise
Kernel Release 2 Update 5 Release Notes
<https://oss.oracle.com/ol6/docs/RELEASE-NOTES-UEK2-QU5-en.html>.

*Note:* the actual version number displayed by the kernel and on the RPM
packages is *2.6.39*. This was done to avoid potential breakage of
certain low-level utilities of the Oracle Linux distribution (also known
as the "plumbing") that potentially can't cope with the new 3.x version
scheme. Regular Linux applications are usually not aware or affected by
Linux kernel version numbers.


        Notable changes

  * Xsigo virtual host adapter and network drivers to support Oracle SDN
    (Software Defined Network), previously known as Xsigo Fabric
    Accelerator.
  * LSI Fusion-MPT SAS 3.0 driver to support up to 12 Gb/s host controllers.


        Notable Bug Fixes

  * [btrfs] Files can be reflinked using the --reflink option to cp
    [orabug 13709927]
  * [btrfs] Btrfs volumes can be mounted wihtout specifying the
    filesystem type [orabug 13705319]


        Driver Updates

The Unbreakable Enterprise Kernel supports a wide range of hardware and
devices. In close cooperation with hardware and storage vendors, several
device drivers have been updated by Oracle.


          Storage drivers

  * AACRAID driver updated to 1.2-0[30200]-ms
  * Cisco FCoE HBA driver (fnic) updated to 1.5.0.45
  * Emulex Fibre Channel HBA driver (lpfc) updated to 0:8.3.7.26.3p
  * Intel C600 serieal attached SCSI (SAS) module (isci) updated to 1.0.0
  * LSI Fusion-MPT base driver (mptbase) updated to 4.28.20.02
  * LSI Fusion-MPT-ioctl driver (mptctl) updated to 4.28.20.02
  * LSI Fusion-MPT Fibre Channel host driver (mptfc) updated to 4.28.20.02
  * LSI Fusion-MPT IP over Fibre Channel driver (mptlan) updated to
    4.28.20.02
  * LSI Fusion-MPT SAS driver(mptsas)) updated to 4.28.20.02
  * LSI Fusion-MPT SCSI host driver (mptscsih) updated to 4.28.20.02
  * LSI Fusion-MPT SPI host driver (mptspi) updated to 4.28.20.02
  * LSI Fusion-MPT SAS 2.0 driver (mpt2sas) updated to 17.00.01.00
  * LSI Fusion-MPT SAS 3.0 driver (mpt3sas) updated to 3.00.00.00 added.
    Supports up to 12 Gb/s host controllers
  * MegaRAID SAS driver (megaraid_sas) updated to 06.600.18.00
  * Qlogic iSCSI driver (qla4xxx) updated to 5.03.00.03.06.02-uek2.
    Supports Open-iSCSI
  * Xsigo Core services module driver (xscore) version 6.0.r7269 added.
    Required by all Xsigo modules
  * Xsigo Virtual HBA driver (xsvhba) verion 6.0.r7269 added


          Network drivers

  * Broadcom Tigon3 Ethernet adapter driver (tg3) updated to 3.131d.
  * Emulex Blade Engine 2 10Gbps adapter driver (be2net) updated to
    4.4.31.0o
  * Intel Pro/1000 PCI-Express Gigabit network adapter driver (e1000e)
    updated to 2.4.14
  * Intel Gigabit Ethernet network adapter driver (igb) updated to 4.3.0
  * Intel Gigabit Linux driver (igbvf) updated to 2.3.2. Provides
    82576-based virtual funtion devices on kernels that support Single
    Root I/O Virtualization (SR-IOV)
  * Intel 10 Gigabit PCI-Express network adapter driver (ixgbe) updated
    to 3.15.1
  * Qlogic 1/10 GbE Converged/Intelligent Ethernet Adapter driver
    (qlcnic) updated to 5.2.43
  * Xsigo Core Services module driver (xscore) version 6.0.r7269 added.
    Required by all other Xsigo modules.
  * Xsigo Virtual Ethernet driver (xve) added
  * Xsigo Virtual NIC driver (xsvnic) version 0.316.0.r7269


        Technology Preview

Following features included in the Unbreakable Enterprise Kernel Release
2 are still under development, but are already made available for
testing/evaluation purposes.

  * *Kernel module signing facility*: Applies cryptographic signature
    checking to modules on module load, checking the signature against a
    ring of public keys compiled into the kernel. GPG is used to do the
    cryptographic work and determines the format of the signature and
    key data.
  * *Transcendent memory*: Transcendent Memory (tmem for short) provides
    a new approach for improving the utilization of physical memory in a
    virtualized environment by claiming underutilized memory in a system
    and making it available where it is most needed. From the
    perspective of an operating system, tmem is fast pseudo-RAM of
    indeterminate and varying size that is useful primarily when real
    RAM is in short supply. To learn more about this technology and its
    use cases, see the Transcendent Memory project page on
    oss.oracle.com: http://oss.oracle.com/projects/tmem/


        Compatibility

Oracle Linux maintains user-space compatibility with Red Hat Enterprise
Linux, which is independent of the kernel version running underneath the
operating system. Existing applications will continue to run unmodified
on Unbreakable Enterprise Kernel Release 2 Update 5 and no
re-certifications are needed for RHEL certified applications.

The Oracle Linux team works closely with 3rd party hardware and software
vendors to minimize impact on interoperability during releases but in
order to introduce new drivers there are instances where changes must be
made. In this release, there are changes to the kernel ABI which
requires 3rd party kernel modules on the system be recompiled. Before
installing this update, please verify the support status of this release
with your application vendor(s).


    Technology Preview Features for Oracle Linux 5

The following Technology Preview features are currently not supported
under Oracle Linux 5 and may not be functionally complete.

  * Distributed File System (DFS)
  * LSI 12 Gb/s adapters with the MegaRAID SAS driver
  * CDTB (Clustered database) based on Samba's Trivial Database (TDB)
  * Kerberos support for CIFS mounts
  * FreeIPMI
  * TrouSerS and tpm-tools
  * eCryptfs
  * Stateless Linux
  * AIGLX
  * FireWire
  * Device Failure Monitoring of RAID sets
  * SGPIO Support for dmraid
  * Kernel Tracepoint Facility
  * Software based Fibre Channel over Ethernet (FCoE)
  * iSER Support
  * glibc new MALLOC behaviour

These features are not suitable for production use. However, these
features are included to provide the feature with wider exposure.


    Known Issues for Oracle Linux 5.10

 1. *Red Hat compatible Kernel with Oracle bug fixes will be updated to
    standard Red Hat compatible kernel during ISO upgrade*

        The Oracle Linux ISO has the patched Red Hat compatible kernel
        but it is not in the iso repodata, therefore if the ISO is used
        to upgrade, the kernel will be updated to the Red Hat compatible
        version of the latest release (the non-patched). This is
        expected behavior.

 2. *Red Hat compatible Kernel will be updated to standard Red Hat
    compatible kernel with Oracle bug fixes during ULN upgrade*

        If a 5.9 system running the Red Hat compatible kernel registers
        to the 5.10 ULN channel, the kernel will be updated to the Red
        Hat compatible with Oracle bug fixes version of the latest
        release. This is expected behavior.

 3. *Error: "qemudStaretup:1728: Unable to create cgroup for driver: No
    such device or address"*

        Use the following steps to workaround this error:

        mkdir /dev/cgroup
        mount -t cgroup none /dev/cgroup -o cpu, memory, devices

 4. *YUM command error occurs after system is removed from ULN*

        After removing a system from the list in ULN and running 'yum
        update' on the server console, the following error is displayed:

        AttributeError: 'module' object has no attribute 'RhnServerException'

        To work around this issue remove /etc/sysconfig/rhn/systemid and
        run 'yum update' again

 5. *dmsg error: "rtc_cmos: probe of rtc_cmos failed with error -16.
    Error: Driver 'pcspkr' is already registered, aborting...kudzu[1373]
    general protection ip:8056c78 sp:bfed96b0 error:0 in
    kudzu[8048000+26000]" *

        This is a known issue that is seen with Oracle Linux 5 32-bit
        para-virtualized guests created using virt-install

 6. *UDEVD to be updated to use oom_score_adj to disable OOM on 2.6.39-UEK2*

        This change will set oom_score_adj, if available otherwise if
        this fails, it will fall back to the old oom_adj

 7. *Installation completes successfully but grub.conf file is empty and
    system will not successfully boot.*

        This occurs when trying to install the bootloader to a cciss
        device. To correct this, edit the drive order by moving
        /dev/cciss/c0d0 ahead of /dev/sda

 8. *Missing openIB drivers (sdp/ulp) for Infiniband in UEK (R1/R2)*

        When attempting to load the openIB service the error "Loading
        OpenIB kernel modules:FATAL: Module ib_sdp not found" is
        displayed. This is an artifact of the ib_sdp driver from OpenIB
        not being included in the UEK. If you are using OpenIB, you
        should use the Red Hat compatible kernel.

 9. *Service TUX failed to start on Oracle Linux systems running the UEK*

        When attempting to start tux service (service tux start) the
        system reports multiple errors for "No such file or directory"
        and ends with "TUX not implemented in this kernel" TUX is not
        shipped as part of the UEK and this is expected behavior.

10. *After running yum update there are multiple errors in the
    yumupdate.log indicating a failure to read modules kvm.ko,
    kvm-amd.ko, ksm.ko, kvm-intel.ko with the message "no such file or
    directory"*

    The error messages are generated due to bad symbolic links in the
    Red Hat compatible kernel and are considered harmless.

11. *HVM with PV Drivers Upgrade Issue: Cannot Update Bootloader
    configuration*

    When upgrading a VM using the HVM with PV Drivers Domain type on
    Oracle Enterprise Linux 5.10 from previous versions using the ISO
    media, the option to upgrade the boot loader configuration may not
    be available. This is due to a difference in the way the kernel
    detects the disk devices that prevents it from detecting the
    existing configuration. There are two ways to work around the problem:

      - Use yum to upgrade the systems to 5.10 instead of an ISO
      - Choose the "create new bootloader" option
     

    After the upgrade, old kernel entries that refer to removed kernel
    packages may remain in the grub.conf configuration file. Make sure
    to boot to the 5.10 kernel and remove the invalid entries.

12. *No networking after upgrading an Oracle Linux 5 HVM guest on Oracle
    VM 2.2.2*

        Upgrading an existing Oracle Linux 5 Update 6 or Update 7 guest
        which is running in HVM mode on Oracle VM 2.2.2 may result in
        the network interface(s) being disabled after the reboot
        post-upgrade. To resolve this issue, ensure that the network
        interfaces are set to "paravirtual" in Oracle VM Manager.

        Alternatively, to maintain the emulated devices inside the
        guest, add xen_emul_unplug=never to the kernel boot line in
        /boot/grub/grub.conf and reboot the guest.

13. *No networking after upgrading an Oracle Linux 5 HVM with PV Drivers
    guest on Oracle VM 2.2.2 or 3.0*

        Upgrading an existing Oracle Linux 5 Update 6 or Update 7 guest
        which is running in HVM with PV Drivers mode on Oracle VM 2.2.2
        or 3.0 may result in the network interface(s) being disabled
        after the reboot post-upgrade. To resolve this issue, rename the
        /etc/sysconfig/network-scripts/ifcfg-eth0.bak file to
        /etc/sysconfig/network-scripts/ifcfg-eth0 and reboot the guest.

14. *Warnings appear in dmesg on first boot*

        After an initial install of Oracle Linux 5.10, the following
        warning may appear one or more times in the output of dmesg:

        warning: process `firstboot' used the deprecated sysctl system call with 1.23. 

        This warning can be safely ignored. 

15. *New multipath settings requires changes to /etc/multipath.conf*

        Oracle Linux 5.10 includes a new version of
        device-mapper-multipath. This new version requires manual
        changes to the /etc/multipath.conf file. In the multipath.conf,
        the line with *prio_callout* needs to be replaced by the keyword
        *prio*, and a simple string, not an executable pathname, used
        for the parameter to *prio*. Valid settings for *prio* are:
          * alua
          * ontap
          * const
          * random
          * emc
          * rdac
          * hds
          * tpg_pref
          * hp_sw
          * weighted

16. *Multipath failure causes flush of all multipath devices (12760775)*

        In some multipath failure cases, the multipath maps can get
        flushed when all paths fail, and multipath -l displays no
        information on the status of your multipath devices. This has
        been reported with 2.6.39 UEK kernels using NetApp LUNs, but not
        when running 2.6.18 series kernels with the same storage LUNs. 

17. *Error inserting cxgb3i module (13493043)*

        iscsi offload via cxgb3i on a server with Chelsio T3 Network
        Controller will fail with following error if ofa kernel package
        is installed

        fatal: error inserting cxgb3i - unknown symbol t3_l2e_free

        Use following workaround steps to fix the issue:
          * Remove cxgb3i dependent module from memory if any loaded , i.e

            # rmmod libcxgbi cxgb3

          * Uninstall ofa package,

            # rpm -e ofa-2.6.32-300.10.1.el6uek-1.5.1-4.0.47.x86_64

          * Load cxgb3i module

            # modprobe cxgb3i

18. *Slow performance on 10Gb Ethernet Interfaces*
    The default networking tuning parameters may be too low for some
    10Gb Ethernet interface drivers. If you are experiencing less than
    expected network performance, change the following NIC parameters:
      * rx-usecs: 1
      * rx-frames: 0
    To:
      * rx-usecs: 10
      * rx-frames: 10
19. *dbus-daemon warning in dmesg on 32-bit systems*

        On 32-bit Oracle Linux systems, you may see the following
        warning in dmesg:

        warning: `dbus-daemon' uses 32-bit capabilities (legacy support in use)

        This is only a warning and can be safely ignored. 

20. *iTCO_wdt warning in dmesg*

        Some server hardware may not support the Intel TCO watchdog
        drivers. The following warning may be seen in dmesg:

        iTCO_vendor_support: vendor-support=0 
        iTCO_wdt: Intel TCO WatchDog Timer Driver v1.05 
        iTCO_wdt: failed to reset NO_REBOOT flag, reboot disabled by hardware 
        iTCO_wdt: No card detected 
        intel_rng: FWH not detected

        To disable this TCO WatchDog Timer Driver and suppress this
        warning at boot time add the line "blacklist iTCO_wdt" to
        /etc/modprobe.d/blacklist-watchdog". 

21. *Unbreakable Enterprise Kernel firmware must be manually installed
    prior to upgrade*

        Due to a change in the way firmware is loaded between the Red
        Hat Compatible Kernel and the Oracle Unbreakable Enterprise
        Kernel, you may need to manually install the correct UEK kernel
        firmware package if you want to boot a previous kernel version
        after upgrading to Oracle Linux 5.10. For example, to install
        the firmware for kernel-uek-2.6.39-300.10.1, download the
        correct RPM package from the Unbreakable Linux Network and run
        the following command:

        # rpm -ivh --force kernel-uek-firmware-2.6.39-300.10.1.el5uek.noarch.rpm

22. *Memory limited for Oracle Linux 5.10 Paravirtualized Guests*

        Oracle Linux 5.10 paravirtualized guests running on Oracle VM
        with the Unbreakable Enterprise Kernel have a memory limit of
        480GB. Setting the memory beyond this value may cause the
        paravirtualized network interfaces to fail.

23. *Oracle Linux 5.10 32-bit guest in HVM with PV Drivers mode with
    more than 1 vCPU hangs on boot*

        Attempting to boot a 32-bit HVM guest with PV Drives with more
        than 1 virtual CPU may fail. To resolve this issue, boot the
        guest with a single virtual CPU and append *tsc=reliable*
        parameter to the kernel boot line in

        /boot/grub/grub/conf

        You can then boot the guest with multiple virtual CPUs. 

24. *kexec/kdump may not work on some server platforms*

        Certain server platforms may not support the default kdump
        parameters. To test this, enable kdump and issue:

        echo c > /proc/sysrq-trigger

        If your server hangs indefinitely, you may need to disable the
        "reset_devices" parameter for kdump. To do this, edit
        */etc/sysconfig/kdump* and remove the "reset_devices" parameter
        from the KDUMP_COMMANDLINE_APPEND variable. 

25. *Using yum to upgrade previous update from Unbreakable Linux Network
    (ULN) *

        yum package need to be updated before upgrading previous update
        releases of Oracle Linux 5 to Oracle Linux 5 Update 8 using yum
        from ULN. Please use the following steps to upgrade:

           # yum update yum
           # yum update

26. *Default kernel after upgrade*

        In certain upgrade scenarios the Unbreakable Enterprise Kernel
        may not be the default boot kernel. Update /etc/grub.conf to
        make the latest Unbreakable Enterprise Kernel as the default
        boot kernel. 

27. *Missing kernel module ib_iser.ko*

        Starting OpenFabrics Enterprise Distribution 1.4.2-5 version
        (ofa package), ib_iser kernel module is not built as part of ofa
        package. If the ofa package installed on the system tries to
        load ib_iser.ko, the following message will be displayed on the
        console

         ib_iser: disagrees about version of symbol ib_fmr_pool_unmap 
         ib_iser: Unknown symbol ib_fmr_pool_unmap 


        These messages can be ignored as ib_iser.ko is no more needed. 

28. *Upgrade failure for the full install of Oracle Linux 5 *

        If any of the following packages are installed on the system

        kmod-cmirror
        kmod-cmirror-xen
        kmod-gfs
        kmod-gfs-xen
        kmod-gnbd
        kmod-gnbd-xen

        Upgrade of Oracle Linux 5 system may fail with the following error

        An error occurred while installing packages.
        Please examine /root/install.log on your 
        installed system for detailed information

        to workaround this problem, remove above packages before
        upgrade. These packages can be installed after the upgrade. 

29. *Failed to stat /dev/mapper/* message during boot of paravirtualized
    guests*

        Following messages during boot of paravirtualized guest can be
        ignored

          Failed to stat /dev/mapper/no
          Failed to stat /dev/mapper/block
          Failed to stat /dev/mapper/devices
          Failed to stat /dev/mapper/found

        These errors are expected as dmraid utility returns 'no block
        devices found' because an ioctl to get serial numbers on pv
        devices returns -EINVAL." 

30. *Spurious udev messages during restore of a failed path (11682171)*

        When failed paths are restored in a multipath configuration, you
        may see udevd-work error messages in /var/log/messages. The
        failed paths do get restored despite these messages. 

31. *Default NFS v4 mount options*

        The default NFS mount option has changed to NFS v4. To mount an
        NFS volume using NFS v3 (the default using the Red Hat
        Compatible Kernel), use the following mount options:

        -o vers=3,mountproto=tcp

32. *Serial console not working for a paravirtualized guest (10059184)*

        Please use the following steps to configure the serial console
        in a paravirtualized guest (PV) using the Unbreakable Enterprise
        kernel (updates are in the guest):
         1. change the kernel boot parameter 'console=xvc0' to
            'console=hvc0' in the /etc/grub.conf:

                kernel /vmlinuz-2.6.32-300.10.1.el5 ro root=/dev/sd0 console=tty0 console=hvc0

         2. add an 'hvc0' entry to /etc/inittab:

                co:2345:respawn:/sbin/agetty hvc0 9600 vt100-nav

         3. add an 'hvc0' entry to /etc/securetty
        . 

33. *Setting serial console in a hardware virtualized (HVM) guest *

        To set the serial console a hardware virtualized (HVM) guest use
        the following settings in the guest:
          * On the kernel boot line in grub.conf, add:

            	 console=tty0 console=ttyS0,57600n8
                

          * add the following to /etc/securetty

             
                 ttyS0
                 

          * add the following to /etc/inittab

            	co:2345:respawn:/sbin/agetty ttyS0 57600 vt100-nav
                

34. *Console appears to hang while booting on certain systems (10094052)*

        On some hardware, the console may appear to hang during the boot
        process after starting udev. But the system does boot up
        properly and is accessible. A workaround to this problem is to
        add nomodeset as a kernel boot parameter in /etc/grub.conf:

            kernel /vmlinuz-2.6.32-300.10.1.el5uek.x86_64 ro root=/dev/sd0 nomodeset

35. *Unable to start X (10056679)*

        On some hardware, startup of the X environment may fail after
        upgrading to Unbreakable Enterprise Kernel with following Error:

            Fatal server error:
            Cannot run in framebuffer mode. Please specify busIDs for all
            framebuffer devices.

        To workaround this issue reconfigure X using command "X
        -configure" and use generated configuration file to start X
        environment. 

36. *Higher memory is required for crashkernel option *

        With the Unbreakable Enterprise Kernel a higher memory setting
        is required for crashkernel option in /etc/grub.conf file.
        Booting with crashkernel=128M@16M will result in following error:

            crashkernel reservation failed - memory is in use

        Minimum value for crashkernel option is 128M@32M. Based on the
        system configuration a higher value may be required. If kdump
        service loading fails increase the second value (32M). If the
        system hangs or crashes with out of memory during dumping core
        increase the first value (128M) 

37. *NFS: Error message displayed while mounting an NFS filesystem
    (10070721)*

        The following error may be encountered while mounting an NFS
        filesystem:

            "SVC: FAILED TO REGISTER LOCKDV1 RPC SERVICE (ERRNO 97)."

        This is an informative message and can be ignored 

38. *Unable to remove directory during boot*

        The following message during boot can be ignored as SELinux does
        not allow to recreate the login subdirectory and hence directory
        should not be removed for dovecot:

        Error :
          "rm: cannot remove `/var/run/dovecot/login': Is a directory "

39. *Upgrade ocfs2 and oracleasm kernel modules*

        ocfs2 and oracleasm kernel modules will not be automatically
        updated during upgrade of Oracle Linux 5 as package name for
        these modules contains kernel version in it. These packages need
        to be updated manually after the upgrade. 

40. *device-mapper-multipath package for Red Hat compatible kernel*

        Unbreakable Enterprise Kernel requires kpartx and
        device-mapper-multipath RPMs that are newer than those provided
        for the Red Hat compatible kernel. By default
        device-mapper-multipath-0.4.9-56.0.3.el5 and
        kpartx-0.4.9-56.0.3.el5 are installed. These updated versions of
        kpartx and device-mapper-multipath are supported with the Red
        Hat compatible kernel. The original RPMs for the Red Hat
        compatible kernel (kpartx-0.4.7-54.el5 and
        device-mapper-multipath-0.4.7-54.el5) are also included on the
        Oracle Linux 5.10 ISO in directory Server/oracle_updated.


41. *Workaround to use pirut and system-config-packages to manage packages *

        Pirut and system-config-packages cannot be used to manage,
        install, and uninstall software packages. Follow the steps below
        to resolve the issue
          * Mount the DVD iso of the desired update of Oracle Linux
            Release 5.

            Command for mounting the DVD media inserted in /dev/cdrom
            # mount -r -o loop -t  iso9660 /dev/cdrom /mnt


            Command to mount iso image file
            # mount -o loop   /mnt

          * Create yum repository configuration file
            /etc/yum.repos.d/dvd.repo with following contents

                [dvd]
                name=OEL5DVD
                baseurl=file:///mnt/Server
                enabled=1
                gpgcheck=1
                gpgkey=file:///mnt/RPM-GPG-KEY file:///mnt/RPM-GPG-KEY-oracle
                

          * Clear and update the yum cache

                # yum clean all
                # yum update
                

          * Run pirut/system-config-packages to manage software packages


42. *Conflicting packages*

        The following packages can not co-exist due to file conflict
          * ant and ant17
          * freeradius and freeradius2
          * postgres and postgresql84
          * samba and samba3x
          * tcsh and tcsh617
          * bind and bind97
          * php and php53
          * unixODBC and unixODBC64
          * rsyslog and rsyslog5
          * mysql, mysql51, mysql55 (only one can be installed on a
            given server)


43. *Unresolved dependency during update using up2date *

        If updating from Oracle Linux 5 GA or RHEL 5 GA using up2date,
        you may encounter the following error:

          Unresolvable chain of dependencies:
          xen-3.0.3-64.el5    requires xen-hypervisor-abi = 3.1

        This happens because a kernel-xen package update is needed by
        the xen package, but 'kernel*' is part of the up2date
        pkgSkipList. To get around this, add 'xen;xen-devel;' to the
        pkgSkipList line in /etc/sysconfig/rhn/up2date and then run
        up2date. You can update the xen and kernel-xen packages together
        later via 'up2date --force xen kernel-xen'.

44. */ETC/MULTIPATH/WWIDS is missing after multipath-root install on OL5.10*

        When installing onto a multipath root disk, the file
        /etc/multipath/wwids is not automatically generated at boot
        time, because the root disk (which is itself on multipath) is
        still in read-only mode at the time multipath services start up.
        This will result in a warning message displayed to the console
        at boot time:

        Cannot open file [/etc/multipath/wwids] readonly: No such file or directory


        This message is a warning that can be ignored safely; it does
        not affect the runtime operation of multipathd or
        device-mapper-multipath. To squelch this warning message, after
        the system has booted, it is possible to generate the missing
        wwids file with this command (executed as root):

        multipath -l


        A future errata update should include a complete fix for this
        issue. 

45. *"Warning: at security/security.c:51 security_ops_task_setrlimit()"
    in /var/log/messages after upgrading from Oracle Linux 5.9 to 5.10*

        This warning message is harmless and does not affect the
        functions of the system. This message is generated to let
        developers of LSM modules (security packages such as SELinux or
        comparable solutions like AppArmor or Tomoyo) know about a quirk
        in the way LSM modules implement protection for the setrlimit
        syscall in Oracle Linux 5. 

46. *Removing oracle-validated.rpm may cause issues with grub.conf after
    updating from 5.9 to 5.10 (17089358)*

        This only effects a system when removing oracle-validated.rpm.
        Take a backup of the following files before removing
        oracle-validated.rpm. Once oracle-validated is removed, restore
        the files.

        /boot/grub/grub.conf

        /etc/sysctl.conf

        /etc/security/limits.conf

47. *Error: "FATAL: Could not load
    /lib/modules/2.6.18-363.el5/modules.dep: no such file or directory"*

        This error may be seen when upgrading from 5.9 to 5.10 in
        systems with over 4GB memory. This warning message is harmless
        and does not affect the functions of the system.


    Configuring Updates for Oracle Linux 5 Update 10


      Unbreakable Linux Network

Oracle Linux offers an option to keep your operating system up to date
with latest operating system patches using *up2date* or *yum*.

To register with ULN, use the following command:

# up2date --register

To access Linux updates via Unbreakable Linux Network, you must purchase
a Linux support subscription. For more information please visit
http://linux.oracle.com <http://linux.oracle.com/>.

During ULN registration the server will be automatically registered with
two channels: the latest channel for the base repository as well as the
latest channel for the Unbreakable Enterprise Kernel Release 2. If you
have upgraded from a previous release and do not wish for the UEKR2 to
be installed, you will need to manually unsubscribe the server from this
channel.

The Unbreakable Linux Network includes Oracle-specific software
packages, for example Oracle's ASMlib userspace package and the Oracle
Instant Client. To enable access to these packages, login to the
Unbreakable Linux Network and subscribe to the "Oracle Software" channel.

*Note*: Prior to using up2date, import the RPM-GPG-KEY for Oracle Linux:

# rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY


      Public Yum

Oracle now provides all errata and updates for Oracle Linux via the
public yum service. This service does not require a Linux support
subscription, but only includes updates to the base distribution and
does not include Oracle-specific software. To enable updates via
public-yum, please visit http://public-yum.oracle.com and follow the
instructions on that website.

By default, all new installs of Oracle Linux 5 Update 10 are
automatically configured to use the public-yum update service. No
modification is required to use this service. The public-yum service is
automatically disabled when a server is registered with the Unbreakable
Linux Network.


      Installation Media

*Note:* Oracle Linux 5 Update 10 now contains two distinct repository
sources on the installation media. To configure yum to use the
installation media as a yum source, create the following file
/etc/yum.repos.d/Media.repo with content similar to the following:

[ol5_base_media]
name=Oracle Linux 5 Update 10 Base Media
baseurl=file:///media/Server
gpgcheck=0
enabled=1

[ol5_uek_media]
name=Oracle Linux 5 Update 10 UEK Media
baseurl=file:///media/UEK2
gpgcheck=0
enabled=1

You may need to adjust the /baseurl/ parameter to match where you mount
the ISO media on your server.