RHBA-2009:1476 - Bug Fix Advisory

Topic

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.

Solution

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.4 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.4 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.4 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.4 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.4 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 523440 - vgextend does not take blocking lock and fails if run concurrently with lvextend
• BZ - 523441 - LVM commands take a VERY long time (>40 min) to finish

CVEs

(none)

References

(none)