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* *
* This is an update to an existing patch... *
* *
* Online links can be found at *
* http://ftp.support.compaq.com/patches/public/vms/axp/v7.2-1h1/dec-axpvms-vms721h1_librtl-v0200--4.README
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TITLE: OpenVMS VMS721H1_LIBRTL-V0200 Alpha V7.2-1H1 RTL ECO Summary
 
New Kit Date : 26-JUN-2001
Modification Date: Not Applicable
Modification Type: New Kit

NOTE: An OpenVMS saveset or PCSI installation file is stored
       on the Internet in a self-expanding compressed file.
 
       For OpenVMS savesets, the name of the compressed saveset
       file will be kit_name.a-dcx_vaxexe for OpenVMS VAX or
       kit_name.a-dcx_axpexe for OpenVMS Alpha. Once the OpenVMS
       saveset is copied to your system, expand the compressed
       saveset by typing RUN kitname.dcx_vaxexe or kitname.dcx_alpexe.
 
       For PCSI files, once the PCSI file is copied to your system,
       rename the PCSI file to kitname-dcx_axpexe.pcsi, then it can
       be expanded by typing RUN kitname-dcx_axpexe.pcsi. The resultant
       file will be the PCSI installation file which can be used to install
       the ECO.
 

 
  
Copyright (c) Compaq Computer Corporation 2001. All rights reserved.

OP/SYS: OpenVMS Alpha

COMPONENT: LIBRTL

SOURCE: Compaq Computer Corporation

ECO INFORMATION:

     ECO Kit Name: VMS721H1_LIBRTL-V0200
                    DEC-AXPVMS-VMS721H1_LIBRTL-V0200--4.PCSI
     ECO Kits Superseded by This ECO Kit: None
     ECO Kit Approximate Size: 4320 Blocks
     Kit Applies To: OpenVMS Alpha V7.2-1H1
     System/Cluster Reboot Necessary: Yes
     Rolling Re-boot Supported: Yes
     Installation Rating: INSTALL_3
                           3 - To be installed on all systems running
                               the listed versions of OpenVMS which
                               are experiencing the problems described.

     Kit Dependencies:

       The following remedial kit(s) must be installed BEFORE
       installation of this kit:

         VMS721H1_UPDATE-V0400

       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 RTL on OpenVMS Alpha V7.2-1H1. This kit addresses
the following problems:

PROBLEMS ADDRESSED IN VMS721H1_LIBRTL-V0200 KIT

  o An alignment fault occurs when a quadword Alpha instruction
     references a virtual address that is not aligned on a quadword
     boundary, or when a longword Alpha instruction references a
     virtual address that is not longword aligned. When an
     alignment fault occurs, the CPU incurs a fault and the system
     corrects the alignment issue by executing several instructions
     to the equivalent unaligned accesses.

     By aligning the lib$get* data properly, the system no longer
     incurs these alignment faults and the system, application or
     user program runs faster.

        Images Affected: [SYSLIB]LIBRTL.EXE

  o Processes that utilize the LIB$RENAME_FILE library routine,
     such as NET$ACP, may lose a process channel and memory each
     time the library routine is called. This failure occurs when
     the files to be renamed are pointed to by a searchlist
     logical. The pgflquota of net$acp decreases continuously
     until it reaches zero.

        Images Affected: [SYSLIB]LIBRTL.EXE.
                          [SYSLIB]LIBRTL_INSTRUMENTED.EXE.

  o A PASCAL program that calls the LIB$FID_TO_NAME routine, with
     an empty varying string as the output file specification,
     receives an LIB$_INVARG return status.

        Images Affected: [SYSLIB]LIBRTL.EXE.

  o The lib$mult_delta_time routine returns a %LIB-F-IVTIME
     'invalid time' error message when a negative multiplier is
     supplied to the routine. The run time library documentation
     says if the multiplier is negative, the absolute value should
     be used.

        Images Affected: [SYSLIB]LIBRTL.EXE

  o After installing the VMS721_LIBRTL-V0100 TIMA kit,
     LIB$FIND_IMAGE_SYMBOL fails with -RMS-F-DEV, error in device
     name or inappropriate device type. Programs using
     LIB$FIND_IMAGE_SYMBOL in images that are on disks, which are
     served by MSCP (mass storage control program) but have an
     allocation class, fail with this error message. For example:

     Assume node X is a satellite of the cluster and that $4$DUA300
     is a disk served by node MASTER from an HSX called HSX. Using
     $GETDVI with item code DVI$_DEVNAM, the return values are:

           Node X is _MASTER$DUA300:
              MASTER is _HSX$DUA300:

        Images Affected: [SYSLIB]LIBRTL.EXE

  o LIB$GET_LOGICAL does not return a logical translation
     resultant length when it is set to "0." LIB$GET_LOGICAL will
     only return a "resultant-length" if the length passed in is
     greater than the length of the logical name equivalent
     returned by this service.

        Images Affected: [SYSLIB]LIBRTL.EXE

  o Some released compilers with a gem backend prologue bug
     generate well known, recognizable, and small illegal code
     segments. It is possible, especially in AST, thread, or
     interrupt rich applications, to interrupt images inside these
     small segments. The V7.2 and V7.2-1 stack walking and stack
     frame accessing routines, i.e., lib$calling_standard routines,
     will fail in this situation. That is, they will complain
     (sometimes ACCVIO) about illegal (do not conform to the
     calling standard) stack frames and will not be able to access
     frames previous to the illegal frame. This may cause the
     application to fail.

        Images Affected: [SYSLIB]LIBRTL.EXE

  o A routine that declares lib$sig_to_ret as an exception handler
     returns an unexpected status return, a C signal, SS$_BREAK,
     SS$_IMGDMP or SS$_DEBUG.

        Images Affected: [SYSLIB]LIBRTL.EXE

INSTALLATION NOTES:

This kit requires a system reboot. Compaq strongly recommends that
a reboot is performed immediately after kit installation to avoid
system instability

If you have other nodes in your OpenVMS cluster, they must also be
rebooted in order to make use of the new image(s). If it is not
possible or convenient to reboot the entire cluster at this time, a
rolling re-boot may be performed.

INSTALLATION INSTRUCTIONS:

Install this kit with the POLYCENTER Software installation utility
by logging into the SYSTEM account, and typing the following at the
DCL prompt:

     PRODUCT INSTALL VMS721H1_LIBRTL /SOURCE=[location of Kit]

The kit location may be a tape drive, CD, or a disk directory that
contains the kit.

Additional help on installing PCSI kits can be found by typing
HELP PRODUCT INSTALL at the system prompt

All trademarks are the property of their respective owners.

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