HP Tru64 UNIX and TruCluster Server Version 5.1B-6 Patch Summary and Release Notes

• Fixes a problem with KZPAC (SWXCR controller) that occurs when an open() issued on a
deleted unit succeeds and a read I/O request results in a system crash.
• Allows systems with multiple paths to a large number of devices to boot faster.
• Changes the way the aha_chim OSM driver handles timeouts. Previously, timeouts were
handled by registering a timer in the kernel callout queue for each I/O that timed out. As a
result, a burst of aha_chim timeouts could flood the kernel callout queue. The new method
times the I/O itself, so no entries are put in the kernel callout queue.
• Ensures that the alt firmware is stopped before freeing buffers when the alt card is
re-initializing.
• Fixes a problem with the alt driver regarding receiving 9000-byte packets.
• Provides transmit/receive flow control settings and driver revision to the bcm Gigabit
Ethernet driver boot time startup messages.
• Provides a fix for the proper operation of DS25 onboard bcm LEDs.
• Fixes an issue in the error recovery procedure of CISS adapters.
• Improves failure detection handling due to command timeouts.
• Fixes a potential race condition that causes a kernel memory fault by the changer code.
• Allow systems with multiple paths to a large number of devices to boot faster.
• Fixes inappropriate handling of failures during tape changer opens.
• Corrects a problem in which the consvar command can panic or fail without error when
setting some console environment variables.
• Fixes problems in the aha_chim (KZPEA) driver.
• Corrects a potential hang issue with tapes when their SCSI address changes.
• Enables FCP-2 Link Level Error Recovery for tape operations.
• Corrects the handling of LS_RJT messages in the emx driver.
• Corrects the cause of a kernel memory fault panic in the KZPEA driver.
• Fixes a simple lock fault in wakeup_async_waiter.
• Fixes a problem with the environmental monitoring daemon on partitioned AlphaServer
GS80/GS160/GS320 systems.
• Provides new EMX driver hardware attributes.
• Improves selection timeout handling in RAID services.
• Fixes a simple lock fault in cdisk_bbr_comp.
• Fixes an issue related to aha_chim driver blocking in interrupt context.
• Fixes the cause of a kernel memory fault that occurs in the ctape_generic_pass_thru routine
when bus resets were detected.
• Prevents system hangs due to certain internal Fibre Channel adapter failures.
• Fixes an issue in which the hwmgr utility displays an incorrect MTU size for a network
interface.
• Fixes several I/O error handling and error reporting problems in the Tru64 Emulex Fibre
Channel driver that can result in inefficient error handling or misleading error log entries.
• Causes an error to be logged to binary.errlog when a LUN contraction is detected
• Causes "Tru64 AHA_CHIM" to be returned for the SIM vendor ID.
• Allows the hwmgr redirect scsi command to work with lockmode 4.
• Fixes device recovery timing by improving the chances for a problem disk to recover.
• Allows the first path to be removed with hwmgr if it is stale.
• Provides environmental sensor support for Superdome power supply sensors.
• Provides support for the CPU offline capability on AlphaServer GS1280 systems, as required
for Capacity on Demand.
• Updates the bcm driver to V1.0.22 to fix issues with IPv6 and SNMP.
Summary of Base Operating System Patches 119