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

• Corrects a problem in which a panic displaying the message “error CNX MGR:
cnx_comm_error: invalid node state” occurs on a LAN cluster running under load when
other members are rebooting.
• Addresses an error in which caa_register -u produces with no balance data.
• Addresses a resource inaccessibility issue that can occur if the hosting member crashes
during a remote caa_stop operation.
• Updates the attributes on a directory when files are removed by a cluster node that is not
the file system server.
• Fixes a problem associated with non-SCSI storage.
• Corrects a potential security vulnerability in the cluster interconnect security configuration
that may result in a denial of service (DoS) on systems running TruCluster Server software.
• Causes UDP datagrams that do not come from the correct port to be discarded.
• Addresses a node hang that occurs during the testing of Memory Channel cable pulls. A
cluster member may hang when a Memory Channel cable is pulled, the node is taken down,
the cable is plugged back in, and the node is rebooted.
• Fixes a cluster deadlock that may occur during a failover and recovery when direct I/O is
in use.
• Fixes a race condition in the Device Request Dispatcher.
• Corrects a condition that can cause excessive FIDS_LOCK contention when a large number
of files are using system-based file locking.
• Fixes a problem with cfsd core dumping shortly after startup if it is enabled or shortly after
enabling it. The problem fixed by this patch is only seen after applying a recent dsfmgr
patch.
• Corrects diagnostic code that could cause a panic during a kernel boot.
• Eliminates a performance problem when a node acting as CFS server of an NFS client file
system is write-appending to an external NFS server.
• Prevents a panic when an AutoFS file system is auto-unmounted.
• Corrects the cause of a cluster member panic with kernel memory fault when running nmap
or nessus targeting at the cluster alias.
• Resolves a problem in which the caa_register command allows a CAA resource to be
registered even when its profile contains an unknown attribute. This fix prevents the
caa_register command from registering a resource with an unknown attribute and will cause
it to return an error message that includes the unknown attribute information.
• Fixes a condition in which uptimes greater than 100 percent are reported for resources by
caa_report.
• Fixes a problem in which resources that never started have an ending timestamp.
• Fixes a problem in which CAA dumps core when trying to deal with cluster member ID 63.
• Fixes an problem where access to the quorum disk can be lost if the quorum disk is on a
parallel SCSI bus and multiple bus resets are encountered.
• Relieves pressure on the CMS global DLM lock by allowing AutoFS auto unmounts to back
off.
• Fixes cfsmgr to properly return a failure status when a relocation request has failed.
• Fixes a race condition where stale name cache entries allow file access after file unlink.
• Corrects a problem in which cfsd will terminate prematurely and core dump when a node
leaves the cluster very shortly after joining the cluster.
• Fixes a timing window during asynchronous reads on a CFS client.
• Fixes a panic that may occur during an unmount.
• Corrects several problems with various installation commands and utilities.
• Fixes a memory leak in the clu_get_info interface.
• Enhances cluster file system performance when using file locks to coordinate file access.
162 TruCluster Server Patches