HP Tru64 UNIX and TruCluster Server Version 5.1.B-4 Patch Summary and Release Notes (13156)
• Prevents the growth of a stack object when code invokes an mmap system call.
• Corrects a kernel memory fault panic clock_tick().
• Fixes the following panics:
page is not primary page
mcs_unlock: current lock not found
• Corrects a memory leak caused by a race condition that can lead to the incorrect decrementing
of reference counts of vm_anon objects, which can cause orphaned pages.
• Fixes an “mcs_lock: lock already owned by cpu” panic.
• Fixes a problem that can trigger a “big pages assert” panic under the following condition:
— Big Pages are enabled.
— Large argument lists are enabled.
— An application such as a shell tries to pass a large list of arguments to a child process,
such as a command.
• Fixes the following panics:
mcs_unlock: lock not currently owned
the zombie walks, the sequel
• Changes I/O retry processing when a command time out is encountered by causing the retry
code to attempt to take advantage of other active paths during retries if command time outs
are encountered.
• Fixes a rare lock timeout on some AlphaServer ES47/ES80/GS1280 systems with heavy binary
errorlog activity.
• Fixes a "vl_unwire: page is not wired" panic when the system is configured with gh_chunks
or rad_gh_regions enabled and new_wire_method = 1.
• Retires the "new_wire_method" sysconfig tunable paramater. See “new_wire_method
Tunable Attribute Retired ”.
• Corrects a potential security vulnerability in the Transmission Control Protocol (TCP) that
could be remotely exploitable, resulting in denial of service (DoS).
SSRT4696 - TCP (Severity - High)
• Corrects a potential security vulnerability that could result in a Denial of Service (DoS). This
potential vulnerability may be in the form of local and remote security domain risks.
• Fixes a panic in ubc_bigpage_release().
• Fixes a problem that causes the audgen system call to overwrite memory beyond the end
of the audit buffer.
Patch 27011.00
OSFBINCOM540
• Provides an option that allows cluster NFS clients to use a nonprivileged TCP port to see if
a remote NFS server is up.
• Allows the hwmgr redirect scsi command to work with lockmode 4.
• Corrects a problem in which the heavy use of the cluster alias on large SMP and NUMA
machines results in excessive context switching and CPU load.
• Enables SmartArray 5300 controller hardware events to be logged to the binary.errlog during
boot time. This is useful in diagnosing logical volume state change and physical drive
hotswaps that can occur while the system in not booted.
• Corrects a potential security vulnerability where, under certain circumstances, system
integrity may be compromised. This may be in the form of improper file access.
• Adds SCSI reserve and release support to mt to assist open SAN tape management
• Fixes a problem with audit data not being displayed by the audit tool.
102 Tru64 UNIX Patches