RHBA-2011:0379 - Bug Fix Advisory

Topic

Updated device-mapper-multipath packages that resolve an issue are now available
for Red Hat Enterprise Linux 5.

Description

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

These updated device-mapper-multipath packages fix the following bug:

• If a device's last path was deleted while the multipathd daemon was trying to

reload the device map, or if a ghost path failed, multipathd did not always
switch into the recovery mode. As a result, multipath devices could not recover
I/O operations in setups that were supposed to temporarily queue I/O if all
paths were down. This update resolves both of these issues; multipath now
correctly recovers I/O operations as configured. (BZ#683447)

All users of device-mapper-multipath are advised to upgrade to these updated
packages, which resolve this issue.

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
https://access.redhat.com/kb/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 5.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.6 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.6 i386
• Red Hat Enterprise Linux Server - AUS 5.6 x86_64
• Red Hat Enterprise Linux Server - AUS 5.6 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 for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.6 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.6 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386
• Red Hat Enterprise Linux Server - AUS 5.6 ia64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 5.6 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 5.6 i386

Fixes

• BZ - 683447 - multipathd occassionally doesn't stop queuing after no_path_retry times out.

CVEs

(none)

References

(none)