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 > > 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.