RHBA-2006:0559 - Bug Fix Advisory
cman-kernel bug fix update
Bug Fix Advisory
Updated cman-kernel packages that fix module loading issues are now
available for Red Hat Enterprise Linux 4 Update 4, kernel release
The cman-kernel package contains modules that allow the cluster manager
(cman) to communicate with the kernel.
The following bug fixes are applied by this update:
- A bug which caused /proc/cluster/services to provide different results
depending on the read size was fixed.
- Multicast addresses now work with cman.
- A memory leak caused by reading /proc/cluster/services or
/proc/cluster/nodes was fixed.
- A bug which caused cman to never send a state change notification to
userspace programs was fixed.
- A bug which could potentially cause cman to panic the kernel was fixed.
These updated cman-kernel packages are in sync with the latest kernel
(2.6.9-42.EL). The modules in earlier cman-kernel packages failed to load
because they did not match the running kernel. It was possible to force
load the modules; however, with this update, users do not need to.
Users are advised to upgrade to these latest cman-kernel packages, which
are updated for use with the 2.6.9-42.EL kernel.
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
This update is available via Red Hat Network. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:
This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.
- Red Hat Enterprise Linux High Availability for x86_64 4 x86_64
- Red Hat Enterprise Linux High Availability for x86_64 4 ia64
- Red Hat Enterprise Linux High Availability for x86_64 4 i386
- BZ - 164535 - cman causing kernel panic
- BZ - 166752 - IPv6 FF1x:: multicast addresses don't work
- BZ - 175372 - Reading in different-sized chunks from /proc/cluster/services gives different results
- BZ - 177577 - cman_serviced panic while doing recovery
- BZ - 178367 - kernel memory leak while reading from /proc/cluster/[nodes|services]
- BZ - 182233 - Last node in a cluster doesn't send "down" notification to userspace
- BZ - 189605 - NULL pointer dereference during a cman join
Red Hat Enterprise Linux High Availability for x86_64 4