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

• Fixes a panic condition in AIO.
• Fixes a "simple lock: time limit exceeded" panic.
• Fixes a problem that prevents access to the AutoFS file systems if ACLs are enabled.
• Improves NFS client performance on NUMA systems by doing a better job
distributing data, locks, and nfsiod threads across Resource Affinity Domains
(RADs).
• Addresses the dispatching of NFS server requests for the public file handle on
cluster members and multi-RAD systems.
• Fixes how the NFS client handles full NFS version 3 64-bit file IDs.
• Resolves a problem that prevents the viewing of files created by third-party
software on some CD-ROM media.
• Resolves a problem of not being able to view files on some CD-ROM media that
is created by third-party software and corrects the erroneous reporting of success
when attempting to write beyond the file size limit using synchronized I/O and
the calculation of _PC_FILESIZEBITS, which is used by the operating system for
pathconf file characteristics.
• Fixes a race condition in the kernel AIO code that can panic the system with either
a kernel memory fault or a duplicate malloc free.
• Corrects a potential panic with large memory processes using System V shared
Memory at process exit.
• Corrects a panic resulting from a race condition between vnode deallocation logic
and the use of CACHE_LOOKUP_REF/CACHE_LOOKUP_RELE in grab_bsacc
and bs_dealloc_access (which attempt to block vnode deallocation).
• Fixes a memory leak in the NFS server encountered when it receives malformed
packets.
• Fixes an AutoFS panic during an unmount operation when AutoFS tries to remove
a directory.
• Corrects a problem in which Tru64 UNIX sees an HP-XP RAID array controller as
a disk after an HP-XP storage device is added to the system.
• Corrects a problem in which table() calls were not correctly getting process
arguments.
• Improves the scaling of IP reassembly code on large SMP machines. NFS servers
are especially susceptible when a large number of clients attempt to write at the
same time.
• Implements buffer cache page checksum caching for NFS client pages.
• Fixes a problem that can cause a system crash when an NFS server exports files
on a third-party file system (that is, one not built into Tru64 UNIX).
• Fixes a rare kernel panic that occurs during the handling of a clock tick when class
scheduling is used.
• Corrects a potential process hang that occurs while exiting a system that has
dynamically powered off a processor.
130 Tru64 UNIX Patches