HP Tru64 UNIX and TruCluster Server Version 5.1B-5 Patch Summary and Release Notes (March 2009)

• Makes possible a sticky connection feature for cluster alias.
• Updates sysconfig to use the cluster interconnect to allow for greater SSI
collaboration, which will help with changing variables on hung systems, single
user systems, and normal running systems.
• Allows the UFS attribute delay_wbuffers to be tuned using sysconfig.
• Allows the packet filter variables pfilt_loopback and pfilt_physaddr to be tuned
using sysconfig.
• Increases the default value of ipqmaxlen (IP input queue) to 2048.
• Provides an option to enable cluster NFS clients to use a nonprivileged TCP port
to check to see if a remote NFS server is up.
• Corrects a potential issue with NFS version 3 memory mapped files that can lead
to a system panic.
• Allows the stat system call to correctly report the st_blocks for dvdrom files.
• Corrects a condition that causes a panic while creating or extending large UFS file
system.
• Corrects a problem in which under certain load conditions shared memory usage
can lead to an inconsistency that results in a "u_ssm_oop_deallocate: reference
count mismatch" panic.
• Corrects a potential hang on exit from applications utilizing /dev/poll.
• Fixes a condition in the kernel whereby an incorrect internal status can be returned
from mpsleep(), thereby causing potentially incorrect behavior.
• Fixes problems in tcp_output that cause connections to hang when window fills
and fixes a potential loss of data when a connection is closed.
• Corrects a potential loss of data a connection is closed.
• Corrects inappropriate TCP probe timeouts associated with case.
• Adds support for CPU offline on GS1280 systems (required for Capacity on
Demand).
• Corrects a problem with the keepalive mechanism that causes TCP connections
to disconnect unexpectedly.
• Corrects a problem in which changing memory protection results in a kernel
memory fault panic.
• Fixes a condition that can cause a panic in the kernel during interconnect operations
involving configuration requests.
• Corrects a problem in which an invalid core file may be generated following
abnormal program termination.
• Fixes mount/umount failures and panics in FMS, UFS FDFS.
• Fixes a situation in which mmap memory locked with mlockall() using the
MCL_FUTURE flag does not become wired automatically.
• Fixes a problem in which fuser is unable to report on all referenced resources when
attempting to identify reasons for unmount failures.
122 Tru64 UNIX Patches