OpenVMS VMS721_IPC-V0100 Alpha V7.2-1 IPC ECO Summary

TITLE: OpenVMS VMS721_IPC-V0100 Alpha V7.2-1 IPC ECO Summary
 
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 2000.  All rights reserved.

Modification Date:  06-NOV-2000
Modification Type:  Corrected typographical errors.

OP/SYS:     OpenVMS Alpha 

COMPONENT:  SYS$IPC_SERVICES

SOURCE:     Compaq Computer Corporation

ECO INFORMATION:

     ECO Kit Name:  VMS721_IPC-V0100
     ECO Kits Superseded by This ECO Kit:  None
     ECO Kit Approximate Size:  736 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) must be installed BEFORE
       installation of this kit:

         VMS721_UPDATE-V0100
         VMS721_PCSI-V0100

       In order to receive all the corrections listed in this
       kit, the following remedial kits 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-V0100:  

  o  IPC (inter-process communication) DISCONNECT does not fail
     outstanding requests.

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

  o  Massive non-paged pool corruption leads to various crashes and
     hangs.

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

  o  POOLCHECK bugchecks when a longword corruption contains zeroes.

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

  o  Using a stale TLCB$L_TVCB field caused an ACCVIO system crash.

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

  o  An ACCVIO crash occurred in SSRV$OpenAssociation.

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

  o  CPUSPINWAIT crashes occur

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

  o  An INCONSTATE crash occurs in SYSIPC$SUBS/ipc$$remove_lcb due
     to a failed validity check.

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


INSTALLATION NOTES:

The images in this kit will not take effect until the system is
rebooted.  If there are other nodes in the VMScluster, 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.

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dec-axpvms-vms721_ipc-v0100--4.README
dec-axpvms-vms721_ipc-v0100--4.CHKSUM
dec-axpvms-vms721_ipc-v0100--4.pcsi-dcx_axpexe
vms721_ipc-v0100.CVRLET_TXT