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

• Adds read/write ability to XP control ports.
• Corrects a problem with a sensor error that can indicate a false over-temperature
condition on DS10/DS10L and TS10 systems.
• Fixes a kernel memory fault panic problem with the KZPCC RAID adapter.
• Fixes a panic that can occur during asynchronous event notification by a mass
storage driver.
• Corrects a problem in which AlphaServer GS1280/ES80/ES47 systems may report
false over-temperature conditions if the temperature drops to (or below) 9 degrees
Celsius (48 F).
• Allows hwmgr -redirect to work with lockmode 4.
• Fixes invalid queue entries and system panics following Retries Exhausted.
• Fixes a persistent reduction in SCSI queue depth after a queue full occurs.
• Fixes a race condition in xpt_async_event_thread.
• Fixes an “mcs_lock:lock already owned by cpu” panic.
• Fixes an issue with the storage subsystem I/O Barrier error handling.
• Fixes USB problems that prevent some USB keyboards and mice from working.
• Fixes POx Uncorrected and Unrecoverable Error panics on EV7 based systems.
• Corrects tag and non-tag I/O handling when the system is booting.
• Corrects a problem in which a multi-threaded application accessing a single tape
drive via a single FILE object shared amongst the threads causes a kernel memory
fault.
• Fixes a problem with VMAC not working on the bcm driver (DEGXA) without
explicitly enabling promiscuous mode.
• Fixes a rare problem in which a “queue full” response during device discovery
results in a kernel memory fault.
• Adds additional fast fail functionality to the disk class driver.
• Clarifies the binary error-log entry for medium or hardware errors.
• Correct error logging problems in the emx driver.
• Fixes a problem that causes an “invalid link address” kernel panic in the Alteon
gigabit Ethernet driver.
• Fixes the incorrect locking order in alt driver.
• Corrects a problem in which FibreChannel dropped data is not detected during
I/O error recovery and so is not retried, thereby causing unexpected and
unnecessary errors.
• Corrects a problem in which tape devices with no ddr entry would incorrectly
enable or disable compression to the device special file that was used.
• Fixes a problem in which the operating system receives an environmental machine
check packet from the firmware, but fails to correctly recognize the sensor that is
identified as faulty by the machine check.
3.4 Summary of Base Operating System Patches 169