OpenVMS VMS72_PTHREAD-V0200 Alpha V7.2 PTHREAD ECO Summary

TITLE: OpenVMS VMS72_PTHREAD-V0200 Alpha V7.2 PTHREAD ECO Summary
 
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) Compaq Computer Corporation 1999.  All rights reserved.

Modification Date:  08-DEC-99
Modification Type:  Updated Kit  Supersedes VMS72_PTHREAD-V0100

PRODUCT:    OpenVMS Alpha 

COMPONENT:  PTHREADs 

SOURCE:     Compaq Computer Corporation

ECO INFORMATION:

     ECO Kit Name:  VMS72_PTHREAD-V0200
                    DEC-AXPVMS-VMS72_PTHREAD-V0200--4.PCSI
     ECO Kits Superseded by This ECO Kit:  VMS72_PTHREAD-V0100
     ECO Kit Approximate Size:  1345 Blocks
     Kit Applies To:  OpenVMS Alpha V7.2 
     System/Cluster Reboot Necessary:  No
     Rolling Re-boot Supported:  N/A
     Installation Rating:  INSTALL_2 - To be installed on all systems running
                                       the listed version(s) of OpenVMS and
                                       using the following feature(s):

                                            PTHREADs (DECthreads)

     Kit Dependencies:

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

            VMS72_UPDATE-V0100

       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 PTHREADS on OpenVMS Alpha V7.2.  This kit addresses
the following problems: 

Problems Addressed in VMS72_PTHREAD-V0200:

  o  A customer's application, when run with upcalls enabled, can die
     with an ACCVIO.  This is the result of a stack overflow while
     running the application's exit handling routine. 

  o  When a thread calls pthread_exit() the entire process is incorrectly
     terminated by a %CMA-F-EXIT_THREAD error instead of simply
     terminating the calling thread. 

  o  Pagefault completions accumulate (as observed via the "pthread show
     -u" command to SDA), with the corresponding waiting threads having
     been, apparently, unblocked without consuming (i.e., freeing) the
     completions.  Also, sometimes threads are found waiting indefinitely
     for completions (although this effect was never successfully
     reproduced in-house), while other, mismatched completions remain
     pending. 

  o  Reduced performance and/or process threads hang.


Problems Addressed in VMS72_PTHREAD-V0100:

  o  ADA compiles were erroneously returning 'success' after
     installation of the ALPPTHR02_071 remedial kit.

  o  ADA programs using certain TEXT_IO functions, when linked
     without upcalls enabled, may hang with the manager thread
     ready to run, but not running.  Instead, the null thread is
     running.  The PTHREAD$RTL.EXE image may also produce an
     UNALIGNRELO warning upon linking of the image.


INSTALLATION NOTES:

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 VMS72_PTHREAD /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 

No reboot is necessary after successful installation of this kit. 
However, to make use of the new images on other nodes in the cluster you
must execute the following instructions after kit installation completes.

 1.  $ SET PROCESS/PRIV=OPER

 2.  $ MCR SYSMAN

 3.  SYSMAN> SET ENVIRONMENT/NODE=(NODE_1,NODE_2,NODE_N)***

 4.  SYSMAN> SET PROFILE/PRIV=(CMKRNL,SYSGBL)

 5.  SYSMAN> DO INSTALL REPLACE SYS$SHARE:PTHREAD$RTL

 6.  SYSMAN> EXIT

*** list any other nodes that boot from the system disk that the kit was
    installed on.  You do not need to include the node that was used to
    install the kit. 


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Files on this server are as follows:

»dec-axpvms-vms72_pthread-v0200--4.README
»dec-axpvms-vms72_pthread-v0200--4.CHKSUM
»dec-axpvms-vms72_pthread-v0200--4.pcsi-dcx_axpexe
»vms72_pthread-v0200.CVRLET_TXT