RHBA-2010:0067 - Bug Fix Advisory

Topic

An updated scsi-target-utils package that fixes various bugs is now
available.

Description

The scsi-target-utils package contains the daemon and tools to set up and
monitor SCSI targets. Currently, iSCSI software and iSER targets are
supported.

This updated scsi-target-utils package includes fixes for the following
bugs:

• the tgtadm utility is used to monitor and modify SCSI target software.

When using tgtadm to present an LVM-backed target to clients, attempting to
create a new file system by running the mkfs utility on a logical volume
caused the tgtd daemon to become unresponsive and connection errors to be
logged to /var/log/messages. With this update, clients are once again able
to successfully create a new file system on an LVM logical volume.
(BZ#545785)

• running the command "tgtadm --mode connection --op delete" to instruct

tgtadm to close and remove an open connection to a target which has ongoing
I/O caused the tgtadm utility to segmentation fault. Subsequently,
attempting to stop the tgtd daemon by running "service tgtd stop" failed
and resulted in error messages. With this update, it is now possible to use
tgtadm to close and remove an open connection to a target which is
undergoing I/O without causing tgtadm to crash, and subsequently stopping
or restarting the tgtd service proceeds as expected. (BZ#545786)

• attempting to create 32 or more iSCSI targets using tgtadm caused the

utility to segmentation fault after successfully creating the first 31
targets. This update fixes this limitation so that tgtadm does not
segmentation fault when creating large numbers of targets, such as 400 or
more. (BZ#552928)

• the /etc/tgt/targets.conf file now supports more advanced configuration

parameters. Refer to the tgt-admin(8) manual page for further information
about valid parameters for the /etc/tgt/targets.conf file.

All users of scsi-target-utils are advised to upgrade to this updated
package, which resolves 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 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 x86_64 - Extended Update Support 5.4 x86_64
• Red Hat Enterprise Linux Resilient Storage for x86_64 - Extended Update Support 5.4 ppc
• Red Hat Enterprise Linux Resilient Storage for x86_64 - Extended Update Support 5.4 ia64
• Red Hat Enterprise Linux Resilient Storage for x86_64 - Extended Update Support 5.4 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 - 545785 - tgtd crashes under load
• BZ - 545786 - tgtadm segfaults upon "tgtadm --mode connection --op delete"
• BZ - 552928 - tgt segfaults on 31st target creation

CVEs

(none)

References

(none)