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

• Fixes a problem in which some reads on /dev/random wait until the entropy pool
is completely full while other reads of /dev/random and /dev/urandom do not.
• Fixes a problem on a VMAC -enabled cluster wherein the member that acts as the
Proxy-ARP-Master for the default cluster alias address sometimes incorrectly uses
the VMAC address created for it as the source MAC address.
• Fixes the cause of a "u_anon_unlock_page: anon already unlocked" panic.
• Fixes a problem in which the NFS version 3 server can reset the setuid and setgid
bits of a file or directory after attempting to comply with the specified attributes
in the request.
• Addresses a performance issue seen in certain applications that allocate and exercise
a memory segment close to the system's bcache size.
• Prevents aio-related slowdowns.
• Corrects an internal error so that UBC invalidate operations can execute correctly.
• Fixes the cause of an “mcs_unlock: lock not currently owned” panic.
• Addresses problems with reading third-party file systems exported by the NFS
server.
• Fixes crashes seen on clustered systems.
• Addresses the panic “pmap_enter_bigpage: attempt to map big page in kernel
map” that is sometimes seen on large AlphaServer GS1280 configurations.
• Fixes an AutoFS problem,where indirect-mapped key directories are not removed
for failed mounts.
• Fixes a potential deadlock hang between a truncate system call and a read system
call on a clustered system.
• Enables AutoFS mount-on paths to have the correct maximum length when AutoFS
files are mapped directly.
• Fixes a condition that causes the evmwatch or evmshow commands to display
incorrect IPv6 addresses.
• Corrects a problem with handling of null symbolic links.
• Exports the creation time of a process via its /proc entry's ctime attribute.
• Fixes a problem in which questionable behavior by non-TRU64 NFS clients results
in NFS over TCP server threads hanging.
• Fixes a problem related to the deletion of binding cache entries in mobile IPv6,
which affects multi-RAD systems like the AlphaServer GS1280.
• Addresses issues that may be seen as panics or hangs having to do with the UBC.
• Introduces the vm_overflow tunable.
• Provides enhancements for NetRAIN operations.
• Corrects race in streams I/O completion and timeout logic.
• Adds the ability to decouple RPC client retransmission activity from UDP or
interface transmission completion handling.
3.4 Summary of Base Operating System Patches 133