- Issued:
- 2010-05-17
- Updated:
- 2010-05-17
RHBA-2010:0416 - Bug Fix Advisory
Synopsis
device-mapper-multipath bug fix update
Type/Severity
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 bug:
- During bootup, multipath was setting up queue_if_no_path on devices that asked
for it before multipathd was started. If paths to the device existed, but were
all unusable, multipath would queue all IO until multipathd started up. This
caused kpartx to hang when trying to read the partition table off the device.
The end result was that the entire machine would hang during bootup. Multipath
now does not enable queueing on newly created devices if multipathd has not
started up yet. This can be overridden with the new -q option. Multipathd will
enable queuing on the appropriate devices when it starts up. (BZ#584343)
Users are advised to upgrade to these updated device-mapper-multipath
packages, which resolve this issue.
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 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 for IBM z Systems - Extended Update Support 5.4 s390x
- Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.4 ppc
Fixes
- BZ - 584343 - System hangs on boot if multipath disks are in Not Ready state.
CVEs
(none)
References
(none)
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.