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<TITLE>
TITLE: HP Tru64 UNIX Memory Leak in Bucket 1(32-byte bucket) When Running vfast
Copyright (c) Hewlett-Packard Company 2004. All rights reserved.
PRODUCT: HP Tru64 UNIX [R] 5.1B
SOURCE: Hewlett-Packard Company
ECO INFORMATION:
ECO Name: T64KIT0022688-V51BB22-E-20040618
ECO Kit Approximate Size: 4.08MB
Kit Applies To: HP Tru64 UNIX 5.1B PK2 (BL22)
ECO Kit CHECKSUMS:
/usr/bin/sum results:
51391 4180
/usr/bin/cksum results:
1845378700 4280320
MD5 results:
671650395b34028db930ef79377bb177
SHA1 results:
a99362f48580508bd74ed3bd8cc784dd4af990b7
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):
A memory leak exists in a routine that vfast uses to merge
extent maps. The routine is not freeing allocated memory in
bucket 1 (32-byte bucket). The problem manifests as an
inordinate amount of memory being used in bucket 1. It
can be identified by issuing the vmstat -M command and
viewing the bytes_in_use column for bucket 1.
This problem only occurs when using vfast. The workaround
is to issue "vfast deactivate dmnName" for all domains
with vfast activated.
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 5.1B Patch Kit 4.
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 5.1B PK2 (BL22) prior to installing
this Early Release Patch Kit.
SUPERSEDE INFORMATION:
This ERP kit supsedes Tru64 C283.01, C736.00, C283.00, C271.00.
KNOWN PROBLEMS WITH THE PATCH KIT:
None.
RELEASE NOTES FOR T64KIT0022688-V51BB22-E-20040618:
[R] UNIX is a registered trademark in the United States and other countries
licensed exclusively through X/Open Company Limited.
Copyright Hewlett-Packard Company 2004. 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.
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 97948
* for Tru64 UNIX V5.1B T64V51BB22AS0002-20030415.tar (BL22)
This kit includes a patch which requires system reboot.
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 C736.02
3 Summary of CSPatches contained in this kit
Tru64 UNIX V5.1B
PatchId Summary Of Fix
----------------------------------------
C736.02 Fixes a kernel memory leak when using vfast
4 Additional information from Engineering
None
5 Affected system files
This patch delivers the following files:
Tru64 UNIX V5.1B
Patch C736.02
./sys/BINARY/advfs.mod
CHECKSUM: 12645 1406
SUBSET: OSFADVFSBIN540
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.
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