RHBA-2014:1219 - Bug Fix Advisory

Topic

Updated lvm2-cluster packages that fix several bugs are now available for Red
Hat Enterprise Linux 5.

Description

The lvm2-cluster packages contain support for Logical Volume Management (LVM) in
a clustered environment.

This update fixes the following bugs:

• Incorrect validation of the clvmd daemon request could lead to a failure with

numerous error messages logged. This bug also caused considerable CPU
consumption, locking up all logical volume (LVM) commands due to false
interpretation of the requests and exhaustive logging. A set of patches has been
provided to improve the clvmd request validation, thus fixing the aforementioned
bug. (BZ#966283)

• When one of the logical volume (LVM) client processes was killed, the clvmd

daemon had to wait for a mutual exclusion (mutex) to stop the LVM client thread.
Consequently, lvm utility commands in a cluster became indefinitely blocked.
This update introduces a patch which fixes the deadlock, and lvm utility
commands now work correctly. (BZ#1005408)

• Due to a regression, the "clvmd -R" command failed to execute with the

following error message:

"EOF reading CLVMD"

The underlying source code has been fixed, and "clvmd -R" now works as intended.
(BZ#1025881)

Users of lvm2-cluster are advised to upgrade to these updated packages, which
fix these bugs.

Solution

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

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

Affected Products

• Red Hat Enterprise Linux Resilient Storage for x86_64 5 x86_64
• Red Hat Enterprise Linux Resilient Storage for x86_64 5 ppc
• Red Hat Enterprise Linux Resilient Storage for x86_64 5 ia64
• Red Hat Enterprise Linux Resilient Storage for x86_64 5 i386
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 5 x86_64
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 5 i386

Fixes

• BZ - 1025881 - clvmd -R fails - "EOF reading CLVMD"

CVEs

(none)

References

(none)