HP Tru64 UNIX and TruCluster Server Version 5.1.B-4 Patch Summary and Release Notes (13156)

• Corrects lock acquires after mpsleep.
• Causes a rebuild delay remainder to be minimally second.
• Allows the cluster to provide new functions to the dupatch command before a member is
rolled, and also provides a mechanism for backing out the added functions.
• Addresses a memory leak in the Memory Channel transport layer.
• Fixes a problem in which a system may panic with a kernel memory fault when a device
that is being opened by one program is being deleted with the hwmgr utility.
• Fixes a condition that causes a panic when a valid NFS packet with corrupted embedded
length field is received.
• Fixes a condition that causes an unnecessary panic due to request connection deregistration
with an invalid IP address.
• Provides performance improvement for CFS filesets mounted with the server_only option.
A log sync for create transactions is not needed for such filesets.
• Fixes a problem with single physical rail Memory Channel configurations and cleans up
stale data left on an off-line physical rail by the Memory Channel driver.
• Fixes a rare cluster hang caused by dead locks that occurred between the CFS client and
server during multiple write operations.
• Fixes multiple problems seen with the TruCluster RDG component, including panics of the
following types "rdg: unwiring", "vl_unwire: page is not wired", and "KMF: from _otsmove."
• Allows users to add new members and create a cluster with different netmasks.
• Removes member0-specific installation files on an undo install, which could prevent the
reinstallation of the patch.
• Allows users to continue forward when they add a member to a one-node cluster during a
rolling upgrade or rolling patch.
• Enables CAA to start up and fail over system services before any of the user services.
• Fixes an unaligned kernel access in the cluster I/O stack.
• Addresses a potential hang in the NFS server that occurs when file systems are being relocated
in a cluster.
• Provides the ability to lower the cluster_rebuild_delay.
• Fixes the long delay during an NFS connection failover when servicing cluster member dies.
• Fixes a panic in clua.mod that is caused by receiving a delete-cnx-request from a member
when that cnx is in the UNREGISTER state.
• Fixes a reconnection problem when an interface comes down and then goes up.
• Fixes a panic problem in clua.mod that occurs when max_aliasid is increased and aliases
are added.
• Fixes a situation that causes a core dump in aliasd when all interfaces are removed on a
cluster member that is set up with at least one cluster alias that was added with virtual=t
and without a subnet.
• Fixes a problem when disabling and re-enabling cluster alias source route on a given interface.
• Fixes a problem where clua.mod does not handle TCP RST messages appropriately.
• Fixes a problem of restoring static routes when an interface revives.
• Corrects a problem in which a rolling upgrade stops advancing when adding a cluster
member to a one-node cluster.
• Fixes an initialization issue with the internode communications subsystem.
• Corrects a problem in which a domain panic on the cluster_root does not result as it should
in a regular panic for the cluster node on which the domain panic occurs.
• Fixes several small issues with clu_upgrade:
— A "process not found" message displayed when finishing the setup stage of clu_upgrade
has been removed.
— The ability to roll on a one-node cluster is maintained.
164 TruCluster Server Patches