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ACMS ACMSDI_V5504023 ACMS V2.3/OpenVMS VAX V5.5 ECO Summary

TITLE: ACMS ACMSDI_V5504023 ACMS V2.3/OpenVMS VAX V5.5 ECO Summary Modification Date: 15-JUL-98 Modification Type: DOCUMENTATION: Technical 1) Minor modifications/corrections made. 2) This kit only applies to OpenVMS VAX V5.5. NOTE: An OpenVMS saveset or PCSI installation file is stored on the Internet in a self-expanding compressed file. The name of the compressed file will be kit_name-dcx_vaxexe for OpenVMS VAX or kit_name-dcx_axpexe for OpenVMS Alpha. Once the file is copied to your system, it can be expanded by typing RUN compressed_file. The resultant file will be the OpenVMS saveset or PCSI installation file which can be used to install the ECO. Copyright (c) Digital Equipment Corporation 1998. All rights reserved. PRODUCT: ACMS Desktop for OpenVMS VAX OP/SYS: DIGITAL OpenVMS VAX COMPONENT: DIGITAL TP Desktop Connector for ACMS SOURCE: Digital Equipment Corporation ECO INFORMATION: ECO Kit Name: ACMSDI_V5504023 ECO Kits Superseded by This ECO Kit: None ECO Kit Approximate Size: 630 Kit Applies To: ACMS Desktop for OpenVMS VAX V2.3 OpenVMS VAX V5.5 System/Cluster Reboot Necessary: No Installation Rating: Information not Available Kit Dependencies: The following remedial kit(s) must be installed BEFORE installation of this kit: None In order to receive all the corrections listed in this kit, the following remedial kits should also be installed: None ECO KIT SUMMARY: An ECO kit exists for ACMS V2.3 on OpenVMS VAX V5.5. o This ECO fixes a problem with VMS authentication on OpenVMS V5.5. Clients were unable to sign in to ACMS unless they were ACMS agent accounts. This behavior occurred as result of the ACMSDI$SERVER detached process's username switching during signin. This behavior has been resolved with a customized authentication library. New Requirements: As a result of using the revised library the ACMSDI$SERVER account must contain SECURITY privilege. Client accounts will not be required to be ACMS agent accounts; however, the ACMSDI$SERVER account must be an ACMS agent account as originally required. o There is a problem if a version 2.0 or earlier SHOW_DESKTOP_USERS.EXE is run against a V2.2 or V2.3 ACMS Desktop server. It will corrupt the memory of the server process. There will not necessarily be an indication of a problem at the time that the older SHOW_DESKTOP_USERS is run. Some time later after additional system activity it will result in a process crash. The symptom of the crash will vary depending upon the state of the process when the corruption occurred. Solution: Additional checks have been added to the ACMS Desktop server to protect its memory from the effect of a V2.0 or earlier SHOW_DESKTOP_USERS.EXE. If an older version of SHOW_DESKTOP_USERS is run against the ACMS Desktop server with this ECO4 installed, the server will log a marshalling error to the software event log. The server will ignore the request and the older client SHOW_DESKTOP_USERS will fail to complete. In order to obtain a SHOW_DESKTOP_USERS report, a version that matches the version of the ACMS Desktop server should be used. o There is a problem with the ACMS Desktop server at times incorrectly managing its virtual memory. To date the problem has only been seen on Alpha 8400 machines running VMS 7.1. However, the logic error is in the ACMS Desktop code and it would seem that the problem could occur on other machine types and operating system versions. This can at times result in an access violation. At other times it results in the generation of a message similar to the one below: "%ACMSDI-E-INTERNAL, Internal ACMSDI RPC error Unable to allocate virtual memory and create a server_bind_id" When such messages are generated it causes the active client thread to be dropped. Solution: This ECO adds additional cross checking of internal data structures prior to using their pointer references. It also corrects the way that memory is probed to determine if it is safe to be accessed. o This ECO adds additional cross checking of internal data structures prior to using their pointer references. It also corrects the way that memory is probed to determine if it is safe to be accessed. Data compression, when activated, will not compress any workspace longer than 32K bytes. ACMSDI$DCM lists these workspaces as uncompressable even though they should have been compressed. Solution: The compress program is using an unsigned 16-bit integer to keep track of the number of bytes remaining to be compressed. Therefore values greater than 32K appeared to be negative. The program, thinking that there were no bytes left to compress and that no bytes had been compressed, considered the workspace uncompressable. A fix was applied to change the 16-bit integer to a 32-bit integer. INSTALLATION NOTES: The system does not need to be rebooted after this kit is installed. However, if the system is a member of a VMScluster, the other cluster members should be rebooted or this kit should be installed on each system in order to make use of the new image(s).



This patch can be found at any of these sites:

Colorado Site
Georgia Site
European Site



Files on this server are as follows:

acmsdi_v5504023.README
acmsdi_v5504023.CHKSUM
acmsdi_v5504023.CVRLET_TXT
acmsdi_v5504023.a-dcx_vaxexe
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