TITLE:  HP Tru64 UNIX Possible Memory Corruption

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


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

ECO INFORMATION:

     ECO Name:  T64KIT0019921-V51AB21-E-20030909
     ECO Kit Approximate Size:  3.49MB 
     Kit Applies To:  HP Tru64 UNIX 5.1A PK4 (BL21)

     ECO Kit CHECKSUMS:
	/usr/bin/sum results:  
	39654   3570

	/usr/bin/cksum results: 
	1120055416 3655680

	MD5 results:   
	3fc96d88ae073dbf857bde2825e681b0

	SHA1 results:
	35d39363ae1369820a0a0a43db990b5a513574c7


ECO KIT SUMMARY:

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

Under certain circumstances, memory corruption can occur 
when a non-Tru64 UNIX NFS client attempts to increase the 
size of an AdvFS file.

The problem usually appears as a kernel memory fault and 
corruption in multiple kernel memory buckets. A thread 
in the crash has the following stack trace segment:

    [...]
        5 _OtsZero
        6 fs_setattr
    [...] 

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.

The patches in this ERP kit will also be available in the next mainstream
patch kit - HP Tru64 UNIX 5.1A Patch Kit 6.


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) 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 5.1A PK4 (BL21) prior to installing 
this Early Release Patch Kit.



KNOWN PROBLEMS WITH THE PATCH KIT:

None.


RELEASE NOTES FOR T64KIT0019921-V51AB21-E-20030909:


			 Release Notes

     This document summarizes the contents and special instructions for the 
     Tru64 UNIX V5.1A 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 GB_G07547 SE_G07482 
             * for Tru64 UNIX V5.1A T64V51AB21AS0004-20030206.tar (BL21)

 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 V5.1A Patch C1352.00


3 Summary of CSPatches contained in this kit


Tru64 UNIX V5.1A

PatchId			Summary Of Fix
----------------------------------------
C1352.00			Fix KMF in _OtsZero


4 Additional information from Engineering


None


5 Affected system files
This patch delivers the following files:

Tru64 UNIX V5.1A
	Patch C1352.00
		./sys/BINARY/advfs.mod
			CHECKSUM:	35402 1314
			SUBSET:	OSFADVFSBIN520


[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.