*******************************************************************************
* *
* This is an update to an existing patch... *
* *
* Online links can be found at *
* http://ftp.support.compaq.com/patches/public/vms/axp/v7.2-1/dec-axpvms-vms721_ipc-v0200--4.README
*******************************************************************************

TITLE: OpenVMS VMS721_IPC-V0200 Alpha V7.2-1 IPC ECO Summary

New Kit Date: 10-DEC-2001
Modification Date: Not Applicable
Modification Type: New Kit
 
NOTE: An OpenVMS saveset or PCSI installation file is stored
       on the Internet in a self-expanding compressed file.
 
       For OpenVMS savesets, the name of the compressed saveset
       file will be kit_name.a-dcx_vaxexe for OpenVMS VAX or
       kit_name.a-dcx_axpexe for OpenVMS Alpha. Once the OpenVMS
       saveset is copied to your system, expand the compressed
       saveset by typing RUN kitname.dcx_vaxexe or kitname.dcx_alpexe.
 
       For PCSI files, once the PCSI file is copied to your system,
       rename the PCSI file to kitname-dcx_axpexe.pcsi, then it can
       be expanded by typing RUN kitname-dcx_axpexe.pcsi. The resultant
       file will be the PCSI installation file which can be used to install
       the ECO.
 

 
 
Copyright (c) Compaq Computer Corporation 2001. All rights reserved.

OP/SYS: OpenVMS Alpha

COMPONENT: SYS$IPC_SERVICES

SOURCE: Compaq Computer Corporation

ECO INFORMATION:

     ECO Kit Name: VMS721_IPC-V0200
                    DEC-AXPVMS-VMS721_IPC-V0200--4.PCSI
     ECO Kits Superseded by This ECO Kit: None
     ECO Kit Approximate Size: 1050 Blocks
     Kit Applies To: OpenVMS Alpha V7.2-1
     System/Cluster Reboot Necessary: Yes
     Rolling Re-boot Supported: Yes
     Installation Rating: INSTALL_1
                           1 - To be installed on all systems running
                               the listed version(s) of OpenVMS.

     Kit Dependencies:

       The following remedial kit(s), or later, must be installed BEFORE
       installation of this kit:

         VMS721_UPDATE-V0300

         VMS721_PCSI-V0100

       In order to receive all the corrections listed in this
       kit, the following remedial kits, or later, should also be installed:

         None

ECO KIT SUMMARY:

An ECO kit exists for OpenVMS Alpha V7.2-1. This kit addresses the
following problems:

PROBLEMS ADDRESSED IN VMS721_IPC-V0200 KIT:

  o A system can crash with an "INCONSTATE, Inconsistent I/O data
     base" bugcheck when another node is rejoining the cluster
     after rebooting, and the ACCEPT fails.

     Crashdump Summary Information:
     ------------------------------
     Bugcheck Type: INCONSTATE, Inconsistent I/O data base
     Current Process: NULL
     Current Image: <not available>
     Failing PC: FFFFFFFF.83350640 SYS$IPC_SERVICES+48640
     Failing PS: 1C000000.00000804
     Module: SYS$IPC_SERVICES
                        (Link Date/Time: 19-MAY-2001 01:30:51.36)
     Offset: 00048640

          Images Affected: [SYS$LDR]SYS$IPC_SERVICES.EXE

  o When processes are communicating via ICC, if process resource
     wait is enabled and the transmitter gets too far ahead of the
     receiver, then the transmitting process goes into MUTEX wait.
     This is expected as the BYTLIM quota is exhausted. However,
     the transmitter processes hangs in MUTEX wait waiting for
     BYTCNT/BYTLM to be returned.

          Images Affected: [SYS$LDR]SYS$IPC_SERVICES.EXE

  o A system crash due to a KRNLSTAKNV bugcheck can occur. The
     crash is caused by fork queue corruption. In order for the
     corruption to occur, all of the following must be true:

           - Multinet is running

           - IPC is using the CI

           - The CI is not running on the primary CPU

           - There is heavy Multinet and IPC activity, pushing the
              timing of fork queue access for both

          Images Affected: [SYS$LDR]SYS$IPC_SERVICES.EXE
                            [SYSEXE]IPCDEF.STB

INSTALLATION NOTES:

This kit requires a system reboot. Compaq strongly recommends that
a reboot is performed immediately after kit installation to avoid
system instability

If you have other nodes in your OpenVMS cluster, they must also be
rebooted in order to make use of the new image(s). If it is not
possible or convenient to reboot the entire cluster at this time, a
rolling re-boot may be performed.

INSTALLATION INSTRUCTIONS:

Install this kit with the POLYCENTER Software installation utility
by logging into the SYSTEM account, and typing the following at the
DCL prompt:

PRODUCT INSTALL VMS721_IPC /SOURCE=[location of Kit]

The kit location may be a tape drive, CD, or a disk directory that
contains the kit.

Additional help on installing PCSI kits can be found by typing
HELP PRODUCT INSTALL at the system prompt

SPECIAL INSTALLATION INSTRUCTIONS:

  o Scripting of Answers to Installation Questions

     During installation, this kit will ask and require user
     response to several questions. If you wish to automate the
     installation of this kit and avoid having to provide responses
     to these questions, you must create a DCL command procedure
     that includes the following definitions and commands:

          - $ DEFINE/SYS NO_ASK$BACKUP TRUE

          - $ DEFINE/SYS NO_ASK$REBOOT TRUE

          - Add the following qualifiers to the PRODUCT INSTALL
             command and add that command to the DCL procedure.

               /PROD=DEC/BASE=AXPVMS/VER=V2.0

          - De-assign the logicals assigned

     For example, a sample command file to install the
     VMS721_IPC-V0200 kit would be:

          $
          $ DEFINE/SYS NO_ASK$BACKUP TRUE
          $ DEFINE/SYS NO_ASK$REBOOT TRUE
          $!
          $ PROD INSTALL VMS721_IPC/PROD=DEC/BASE=AXPVMS/VER=V2.0
          $!
          $ DEASSIGN/SYS NO_ASK$BACKUP
          $ DEASSIGN/SYS NO_ASK$REBOOT
          $!
          $ exit

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