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Red Hat Enterprise Linux 4.8 GA Announcement

Red Hat is pleased to announce the availability of the 4.8 release
(kernel-2.6.9-89.EL)  for the Red Hat Enterprise Linux 4 family of
products including:

  - Red Hat Enterprise Linux AS 4 for x86, AMD64/Intel(r) 64,
    Itanium Processor Family,  System p and System z
  - Red Hat Enterprise Linux ES 4 for x86, AMD64/Intel(r) 64,
    and Itanium Processor Family
  - Red Hat Enterprise Linux WS 4 for x86, AMD64/Intel(r) 64,
    and Itanium Processor Family
  - Red Hat Enterprise Linux Desktop 4 for x86 and
    AMD64/Intel(r) 64

Table of Contents

  Technology Previews
  Additional Information
    Defect Reporting
    Mailing Lists


This release includes the following improvements:

* Encryption and Security Enhancements
  - krb5 utilities are now PAM enabled

* System Enhancements
  - updated ipmitool to v1.8.10
  - rpm now correctly fails on archives larger than 2GB

* Storage Enhancements
  - updated device-mapper to 1.02.28
  - updated device-mapper-multipath dm_hp_sw handler for HP Storage Arrays
  - updated device-mapper-multipath mpath_prio_ontap for improved
    error handling on NetApp

* Networking
  - Added router solicitation support
  - Enforced sg requires tx csum in ethtool
  - OFED updated to v1.4

* Platform Enhancements
  - Added virtio drivers to support KVM hypervisor environments
  - Added new AMD HDMI audio support to ATI HDMI
  - Updated Alsa hda driver update from upstream 2008-07-22
  - Added support for affected_cpus for cpufreq
  - Remove i8042 polling timer
  - Fixed and properly detect pmtimer on asus a8v motherboard
  - Backport usbfs_mutex in usbfs

* Kernel Improvements
  - General Features
    - Added "wake_balance" tunable parameter to /proc/sys/kernel/ to
      allow the scheduler to run the thread on any available CPU rather
      than scheduling it on the optimal CPU.
    - Added "max_writeback_pages" tunable parameter to /proc/sys/vm/
      to allow the max number of modified pages kupdate writes to disk
      per iteration per run
    - Added "swap_token_timeout" tunable parameter to /proc/sys/vm/
      to provide a valid hold time of swap out protection token.
    - Added diskdump support to sata_svw driver
    - Systems with more than 64GB physical RAM booting with the 32-bit
      kernel will be limited to 64 GB of RAM
    - Improved reliability of Autofs
    - Added support for 'rdattr_error' in NFSv4 readdir request
- Fixed various short packet handling for NFSv4 readdir and sunrpc issues
    - Updated CIFS to latest upstream

  - Architecture Specific Support
    + x86/x86_64
      - Added initialization vendor info in boot_cpu_data
    + PPC64
      - Added support for digi pci-e gen1 4-8 port async io adapter on
        i/p6 servers
      - Updated ehea driver from version 0078-04 to 0078-08
      - Updated logging of checksum errors in ehea driver
    + s390x
      - Added support for N_Port ID Virtualization (NPIV) to zFCP

  - New Driver support or Driver Updates
    + Network Driver Updates
      - Updated forcedeth driver to latest upstream version 0.61
      - Fixed various e1000 issues with e1000_clean_tx_irq call
        from e1000_netpoll and restart receive unit on esb2 hardware
      - Updated e1000e driver to upstream version
      - Updated igb to upstream version 1.2.45-k2
      - Updated tg3 to upstream version 3.96
      - Updated ixgbe to upstream version 1.3.18-k4
      - Updated bnx2 to upstream version 1.7.9
      - Updated bnx2x to upstream version 1.45.23
      - Added netxen 3031 initial and msi-x support and fw bugfixes
- Improved netxen 2031 tx locking, interrupt handling, ethtool support - Added realtek support for 8111cp and 8111bp with Intel Tylersburg chipset

    + Storage Driver Updates
      - Fixed various SCSI layer issues such as
          * avoid an unnecessary error message
          * handle async iscsi scsi sense events
          * harden against possible data corrupter
          * sd driver calls revalidate_disk wrapper
      - Fixed dm-raid  bug with reduce io delay in dm-raid1
      - Removed quirk aac_quirk_scsi_32 for some aaccraid controllers
- Updated fcp driver with backport of fcp point to point connection support
      - Updated lpfc to version
      - Updated megaraid_sas to version 4.01-rh1
      - Updated mptfusion driver to version
      - Updated qla2xxx firmware to 4.06.01 for 4GB/s and 8GB/s adapters
      - Updated qla2xxx driver to version
      - Updated cciss driver to version 2.6.20.RH2
      - Fixed sata_nv in libsata to disable adma by default

* Laptop and Desktop Enhancements
  - Better support for Graphire CTE-440 and Graphire4

* Developer Enhancements
  - GCC4 packages have been updated to sync with the version released in
    Red Hat Enterprise Linux 5.3

Technology Previews

Technology Preview features are included in Red Hat Enterprise
Linux to provide the features with wide exposure with the goal
of supporting these features in a future release of Red Hat
Enterprise Linux.  Technology Preview features are not supported
under Red Hat Enterprise Linux 4.8 subscription services and may
not be functionally complete.  Red Hat welcomes customer
feedback and suggestions for Technology Previews.  Advisories
will be provided for high-severity security issues in Technology
Preview features.

There were no new or enhanced Technology Preview features in
Red Hat Enterprise Linux 4.8.

Additional Information

Additional information is provided below on Lifecycle, Accessing the Software,
Documentation, Defect Reporting, and Mailing Lists.


The Red Hat Enterprise Linux 4 Life Cycle is available at:

As previously announced, the release of Red Hat Enterprise
Linux 4.8 will mark the end of Production 1 phase of
the Red Hat Enterprise Linux 4. No major hardware enablement
will be provided during the next phase of the lifecycle. A minor hardware
enablement release will be available at the end of Production 2 phase.


Customers should note that their subscriptions provide access to all
currently supported versions of Red Hat Enterprise Linux.

Accessing the Software

Red Hat Enterprise Linux 4.8 is available to existing
Red Hat Enterprise Linux subscribers via RHN.  The
channels will automatically appear in your account.
Installable binary and source ISO images are available
via Red Hat Network at:


You will be required to log in using a valid RHN account
with active entitlements.

Errata Advisories describing specific changes in 4.8 are
available online at:
   https://rhn.redhat.com/errata/rhel4as-errata.html (AS)
   https://rhn.redhat.com/errata/rhel4es-errata.html (ES)
   https://rhn.redhat.com/errata/rhel4ws-errata.html (WS)
   https://rhn.redhat.com/errata/rh-desktop-4-errata.html (Desktop)


Red Hat Enterprise Linux 4 online Release Notes are available at:


The Release Notes are also on your Red Hat Enterprise
Linux 4 installed system in the redhat-release package. However,
for the most upto date version of the release notes, please
refer to the online version.

Defect Reporting

Red Hat Enterprise Linux 4.8 customers using the Technical
Account Manager (TAM) Service should raise all issues and
questions with this release using your current Issue Tracker		
account.  If you're interested in the Technical Account
Manager Service visit:


All other customers can raise questions and issues through
the normal Red Hat support channels.  Details can be found


While defects can be reported using Red Hat's Bugzilla,
please be advised that Bugzilla is not a support tool and
thus does not offer any Service Level Agreement (SLA) for
issues reported through that channel.  Therefore, while
sufficient for defects found during testing a Beta product,
customers should *NOT* rely on Bugzilla when reporting
production issues.

Mailing Lists

Red Hat has a public mailing list for communication during
this and all future Red Hat Enterprise Linux 4 programs.

* rhelv4-announce redhat com

  A low-volume, moderated, announcement-only mailing list.
  Red Hat will use this list to communicate one-way
  information about RHEL 4 programs, such as notifications
  when releases are available or solicitations for feedback.
  Subscribe at:


* nahant-list redhat com

  A public general discussion mailing list for users of
  Red Hat Enterprise Linux 4 releases.  Subscribe at:


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