HP Tru64 UNIX - /usr/bin/ksh Can Use up to 100% CPU Time

TITLE:  HP Tru64 UNIX - /usr/bin/ksh Can Use up to 100% CPU Time

New Kit Date:       27-JUN-2003
Modification Date:  Not Applicable
Modification Type:  New Kit

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


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

ECO INFORMATION:

     ECO Name:  T64V51B20-C0181200-19080-E-20030625
     ECO Kit Approximate Size:  2.77MB 
     Kit Applies To:  HP Tru64 UNIX 5.1 PK6 (BL20)

     ECO Kit CHECKSUMS:
	/usr/bin/sum results:  
	36903   2840

	/usr/bin/cksum results: 
	484621274 2908160

	MD5 results:   
	2184e5604e8d75202f2ceefe80fc1f69

	SHA1 results:
	1c4d41430b8f7c9668e74798b55b029528f813a0


ECO KIT SUMMARY:

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


	/usr/bin/ksh can use up to 100% CPU Time


A ksh process does not terminate if a user closes a telnet session abruptly (for example, by using the "X" in the upper right corner of the window). The process continues to run and can use up to 100% of the CPU on which it is running.

This problem occurs when trap(1) is defined in either a startup script or a script executed within the current shell process. 



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 5.1 PK6 (BL20) prior to installing 
this Early Release Patch Kit.


KNOWN PROBLEMS WITH THE PATCH KIT:

None.


RELEASE NOTES FOR T64V51B20-C0181200-19080-E-20030625:


			 Release Notes

     This document summarizes the contents and special instructions for the 
     Tru64 UNIX V5.1 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 95121 
             * for Tru64 UNIX V5.1 T64V51B20AS0006-20030210.tar (BL20)

 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
	> 
	> tar -xpvf DUV40D13-C0044900-1285-20000328.tar
	> cd patch_kit
	> ./dupatch

2 Special Instructions

There are no special instructions for Tru64 UNIX V5.1 Patch C1812.00


3 Summary of CSPatches contained in this kit


Tru64 UNIX V5.1

PatchId			Summary Of Fix
----------------------------------------
C1812.00		ERP for /usr/bin/ksh can use up to 100 CPU Time


4 Additional information from Engineering


None


5 Affected system files
This patch delivers the following files:

Tru64 UNIX V5.1
	Patch C1812.00
		./usr/bin/ksh
			CHECKSUM:	33394 317
			SUBSET:	OSFBASE510
		./usr/bin/posix/sh
			CHECKSUM:	33394 317
			SUBSET:	OSFBASE510


[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.

Files on this server are as follows:

»t64v51b20-c0181200-19080-e-20030625.README
»t64v51b20-c0181200-19080-e-20030625.CHKSUM
»t64v51b20-c0181200-19080-e-20030625.tar