RHBA-2011:1361 - Bug Fix Advisory

Topic

Updated corosync packages that fix several bugs are now available for Red Hat
Enterprise Linux 6.

Description

The corosync packages provide the Corosync Cluster Engine and C Application
Programming Interfaces (APIs) for Red Hat Enterprise Linux cluster software.

This update fixes the following bugs:

• Previously, under heavy traffic, receive buffers sometimes overflowed, causing

loss of packets. Consequently, retransmit list error messages appeared in the
log files. This bug has been fixed, incoming messages are now processed more
frequently, and the retransmit list error messages no longer appear in the
described scenario. (BZ#726608)

• Previously, when a combination of a lossy network and a large number of

configuration changes was used with corosync, corosync sometimes terminated
unexpectedly. This bug has been fixed, and corosync no longer crashes in the
described scenario. (BZ#727962)

• Prior to this update, when corosync ran the "cman_tool join" and "cman_tool

leave" commands in a loop, corosync sometimes terminated unexpectedly. This bug
has been fixed, and corosync no longer crashes in the described scenario.
(BZ#734997)

All users of corosync 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/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux High Availability for x86_64 6 x86_64
• Red Hat Enterprise Linux High Availability for x86_64 6 i386
• Red Hat Enterprise Linux High Availability for x86_64 - Extended Update Support 6.1 x86_64
• Red Hat Enterprise Linux High Availability for x86_64 - Extended Update Support 6.1 i386
• Red Hat Enterprise Linux Resilient Storage for x86_64 6 x86_64
• Red Hat Enterprise Linux Resilient Storage for x86_64 6 i386
• Red Hat Enterprise Linux Resilient Storage for x86_64 - Extended Update Support 6.1 x86_64
• Red Hat Enterprise Linux Resilient Storage for x86_64 - Extended Update Support 6.1 i386
• Red Hat Enterprise Linux High Availability (for RHEL Server) from RHUI 6 x86_64
• Red Hat Enterprise Linux High Availability (for RHEL Server) from RHUI 6 i386
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 6 x86_64
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 6 i386

Fixes

• BZ - 727962 - corosync crashes with combo of lossy network and config changes
• BZ - 734997 - corosync sometimes crashes while doing cman_tool join; cman_tool leave in a loop

CVEs

(none)

References

(none)