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

• Fixes a problem in which fuser is unable to report on all referenced resources when attempting
to identify reasons for unmount failures.
• Improves the process exit procedure for processes that have had the nice command used
on them.
• Corrects a potential security vulnerability where, under certain circumstances, system
integrity may be compromised. This may be in the form of improper file access.
• Fixes multiple defects in AutoFS user space and kernel code.
• Corrects performance issues when accessing a file with direct I/O enabled.
• Fixes a condition that causes a panic when appending to a file.
• Eliminates a false directory lookup warning message generated by an incorrect comparison
caused by mismatched file ID variable types.
• Improves client caching performance.
• Prevents the loss of a single system image for an NFS file system mounted from a cluster
when there are certain problems communicating with the external NFS server.
• Fixes a problem with audit data not being displayed by the audit tool.
• Corrects problems with file object selection and deselection and directories.
• Addresses NUMA performance issues associated with auditing.
• Introduces type checking of attributes when registering components with the hardware
manager.
• Adds IEEE 802.1Q (VLAN) support.
• Fixes a panic within the two-level scheduling subsystem.
• Fixes a process hang condition.
• Fixes a "thread_block: simple lock held" panic.
• Fixes an occasional panic that can be seen when reading from a process using Granularity
Hints with the procfs command.
• Corrects a problem that causes a system to panic during a particular machine check.
• Corrects 3D client hangs when using the Radeon graphics card.
• Fixes a condition that causes a system to hang when using Open3D over the AGP bus on
an AlphaServer GS1280.
• Protects against "get_color_bucket: empty buckets!" panics and "kernel memory fault" failures
on systems with mixed cache parameters.
• Fixes a kernel memory fault in shadowvnode() caused by a null vnode pointer.
• Fixes insmntque() to conform to proper locking when removing and adding a vnode to the
mount vlist.
• Fixes a condition that causes an excessive FIDS_LOCK contention when large numbers of
files are using system-based file locking.
• Fixes an issue encountered in configurations in which the primary processor is not the first
processor within a RAD.
• Fixes a condition that causes the panic “u_seg_vop_remove: seg not found” in vop.
• Fixes a problem in which a duplicate IP address might be configured on the system or an
IP address might be configured with an incorrect netmask.
• Extension of UFS file systems via the mount command can effectively disable use of the file
system. Additionally, on some LSM based systems a panic can occur after a file system
extension has been completed.
• Fixed a problem in which a process waiting on a semaphore does not get woken up.
• Fixes a problem that causes the panic "Bigpage Assertion Failed."
• Allows the size of the NFS server's duplicate request cache to be adjusted as needed.
• Corrects a locking problem with NFS running over UFS.
• Fixes a problem in which a Tru64 UNIX NFS client panics when it receives a null entry as
a response to a readdirplus request from an NFS server.
92 Tru64 UNIX Patches