RHBA-2009:1645 - Bug Fix Advisory

Topic

Updated device-mapper-multipath packages that fix two bugs are now
available.

Description

The device-mapper-multipath packages provide tools to manage multipath
devices by giving the device-mapper multipath kernel module instructions on
what to do, as well as by managing the creation and removal of partitions
for device-mapper devices.

This update addresses the following bugs:

• the udev rules for device-mapper-multipath were causing device-mapper to

occasionally create multipath devices without using the user specified uid,
gid, or mode. They have been replaced with equivalent rules that do not
cause this issue. (BZ#537761)

• when LUNs were unmapped from LSI storage arrays, the multipath rdac path

checker was not marking the paths as failed. This caused IO to the device
to hang instead of fail. The rdac path checker now marks unmapped LUNs as
failed. (BZ#538463)

Users are advised to upgrade to these updated device-mapper-multipath
packages, which resolve these issues.

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
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 - 537761 - Multipath UID/GID/MODE settings not always taking effect
• BZ - 538463 - [LSI 5.5 bug] RDAC path checker leads to I/O hang when volumes are unmapped from storage

CVEs

(none)

References

(none)