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

• Fixes the cause of the "pmap_pagemove" panic that occurs with some third party
drivers.
• Fixes a problem in which the changer code causes a kernel memory fault.
• Fixes an issue with the KZPCC backplane RAID adapter device driver (I2O) that
causes its logical disk drives to be identified as SCSI devices.
• Makes adapter error messages more descriptive.
• Corrects a memory leak.
• Fixes the problem with the hwmgr utility displaying the wrong output for network
device MTU.
• Addresses an issue in which the cam changer driver does not unwire user pages
when a path fails.
• Fixes a problem of system hangs that occur due to combined memory leak and
DMA resource leak in the EMX driver during the processing of an UNTAGGED
request like device/lun reset.
• 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.
158 Tru64 UNIX Patches