TITLE:  HP Tru64 UNIX - Potential Application Core Dump

Copyright (c) Hewlett-Packard Company 2003.  All rights reserved.


PRODUCT:    HP Tru64 UNIX [R] 5.1B
SOURCE:     Hewlett-Packard Company

ECO INFORMATION:

     ECO Name:  T64KIT0021681-V51BB22-E-20040223
     ECO Kit Approximate Size:  3.48MB 
     Kit Applies To:  HP Tru64 UNIX 5.1B PK2 (BL22)

     ECO Kit CHECKSUMS:
	/usr/bin/sum results:  
	58240   3560

	/usr/bin/cksum results: 
	2348752171 3645440

	MD5 results:   
	8ff404badc58b271f26ecc78520fd2c0

	SHA1 results:
	fb51f20e1e278b6a8b139b748116d30fddb51581


ECO KIT SUMMARY:

A dupatch-based, Early Release Patch kit exists for HP Tru64 UNIX 5.1B that
contains solutions to the following problem(s):

If a multithreaded application calls system(3) or vfork(2) to 
create a child process, the application running in the child 
process may fail and core dump. This core dump often happens 
when the child is a single-threaded program such the ksh shell 
program or other programs.

The Patch Kit Installation Instructions and the Patch Summary and Release
Notes documents provide patch kit installation and removal instructions
and a summary of each patch. Please read these documents prior to 
installing patches on your system.


INSTALLATION NOTES:

1) Install this kit with the dupatch utility that is included in the patch
   kit. You may need to baseline your system if you have manually changed
   system files on your system. The dupatch utility provides the baselining
   capability.

2) The patch in this ERP kit does not have any file intersections with any
   other ERP available at this time for this product version.

3) This ERP kit will NOT install over any Customer Specific Patches (CSPs)
   which have file intersections with this ERP kit. Contact your normal
   Service Provider for assistance if the installation of this ERP kit is
   blocked by any of your installed CSPs.


INSTALLATION PREREQUISITES:

You must have installed HP Tru64 UNIX 5.1B PK2 (BL22) prior to installing 
this Early Release Patch Kit.


SUPERSEDED PATCH LIST:

None.


KNOWN PROBLEMS WITH THE PATCH KIT:

None.


RELEASE NOTES FOR T64KIT0021681-V51BB22-E-20040223:


			 Release Notes

     This document summarizes the contents and special instructions for the 
     Tru64 UNIX V5.1B patches contained in this kit.

     For information about installing or removing patches, baselining, 
     and general patch management, see the Patch Kit Installation 
     Instructions document. 

1 Release Notes


This Early Release Patch Kit Distribution contains:

   - fixes that resolve the problem(s) reported in: 
        o DBDQF0VSP 
             * for Tru64 UNIX V5.1B T64V51BB22AS0002-20030415.tar (BL22)

 The patches in this kit are being released early for general customer use.
 Refer to the Release Notes for a summary of each patch and installation 
 prerequisites.

 Patches in this kit are installed by running dupatch from the directory 
 in which the kit was untarred. For example, as root on the target system:

	> mkdir -p /tmp/CSPkit1
	> cd /tmp/CSPkit1
	> <copy the kit to /tmp/CSPkit1>
	> tar -xpvf DUV40D13-C0044900-1285-20000328.tar
	> cd patch_kit
	> ./dupatch

2 Special Instructions

There are no special instructions for Tru64 UNIX V5.1B Patch C530.00


3 Summary of CSPatches contained in this kit


Tru64 UNIX V5.1B

PatchId			Summary Of Fix
----------------------------------------
C530.00			Fix for multithreaded task forking


4 Additional information from Engineering


None



5 Affected system files
This patch delivers the following files:

Tru64 UNIX V5.1B
	Patch C530.00
		./sys/BINARY/vm.mod
			CHECKSUM:	02221 650
			SUBSET:	OSFBIN540



[R] UNIX is a registered trademark in the United States and other countries 
licensed exclusively through X/Open Company Limited.

Copyright Hewlett-Packard Company 2003.  All Rights reserved.

  This software is proprietary to and embodies the confidential technology
  of Hewlett-Packard Company.  Possession, use, or copying of this
  software and media is authorized only pursuant to a valid written license
  from Hewlett-Packard or an authorized sublicensor.

       This ECO has not been through an exhaustive field test process.
       Due to the experimental stage of this ECO/workaround, Hewlett-Packard
       makes no representations regarding its use or performance. The
       customer shall have the sole responsibility for adequate protection
       and back-up data used in conjunction with this ECO/workaround.