RHN Errata Alert: lvm2 bug-fix update

[Red Hat Network Alert <dev-null@rhn.redhat.com>]

Red Hat Network has determined that the following advisory is applicable to
one or more of the systems you have registered:

Complete information about this errata can be found at the following location:
     https://rhn.redhat.com/rhn/errata/details/Details.do?eid=9229

Bug Fix Advisory - RHBA-2009:1476-1
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Summary:
lvm2 bug-fix update

Updated lvm2 packages that fix bugs are now available.

Description:
The lvm2 packages contain support for Logical Volume Management (LVM).

This update applies the following bug fixes:

* Adds new option prioritise_write_locks in lvm.conf.
  Without enabling this option, whenever there are competing read-only and
  read-write access requests for a volume group's metadata, the write access
  may be stalled by a high volume of read-only requests.

  NOTE: This option only affects locking_type 1 (local file-based locking).

* Make all tools use consistent lock ordering. This fixes vgextend command
to block instead of failing when requested Volume Group is locked read-only.

* Use read-only instead or write lock for lvchange --refresh.

* Adds global/wait_for_locks to lvm.conf so blocking for locks can be disabled.

* Fixes bug where non-blocking file locks could be granted in error.

All users of lvm2 are advised to upgrade to these updated packages, which
resolve these issues.
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Taking Action
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You may address the issues outlined in this advisory in two ways:

     - select your server name by clicking on its name from the list
       available at the following location, and then schedule an
       errata update for it:
           https://rhn.redhat.com/rhn/systems/SystemList.do

     - run the Update Agent on each affected server.


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Affected Systems List
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This Errata Advisory may apply to the systems listed below. If you know that
this errata does not apply to a system listed, it might be possible that the
package profile for that server is out of date. In that case you should refresh 
the system's package profile by running *one* of the following commands as root 
on that system:

 * 'up2date -p' (on Enterprise Linux systems prior to RHEL5)
 * 'rhn-profile-sync' (on Enterprise Linux 5 or later) 

There are 12 affected systems registered in 'Your RHN' (only systems for
which you have explicitly enabled Errata Alerts are shown).

Release   Arch       Profile Name
--------  --------   ------------


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