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                 Beware file for TOPS-10 version 7.04


                               Load 361





                            Revision:  22

                         Date:  July 12, 1988















COPYRIGHT (c) DIGITAL EQUIPMENT CORPORATION 1987,  1988.   ALL  RIGHTS
RESERVED.


THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND  COPIED
ONLY  IN  ACCORDANCE  WITH  THE  TERMS  OF  SUCH  LICENSE AND WITH THE
INCLUSION OF THE ABOVE COPYRIGHT NOTICE.  THIS SOFTWARE OR  ANY  OTHER
COPIES  THEREOF MAY NOT BE PROVIDED OR OTHERWISE MADE AVAILABLE TO ANY
OTHER PERSON.  NO TITLE TO AND OWNERSHIP OF  THE  SOFTWARE  IS  HEREBY
TRANSFERRED.

THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE  WITHOUT  NOTICE
AND  SHOULD  NOT  BE  CONSTRUED  AS  A COMMITMENT BY DIGITAL EQUIPMENT
CORPORATION.

DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR  RELIABILITY  OF  ITS
SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY DIGITAL.
Beware file for TOPS-10 version 7.04, Load 361                  Page 2


                          Table of Contents


This file contains the following information concerning  this  release
of the TOPS-10 operating system.


     1.0        Introduction


     2.0        List of files on the Auxilliary tape


     3.0        Patch file installation


     4.0        Patch descriptions


     5.0        Miscellaneous



1.0  INTRODUCTION

The purpose of this beware file is to provide field  test  information
that  pertains to the contents of the Auxilliary tape for this load of
the monitor.  Unless otherwise specified, the contents of this  beware
file  provides  supplemental  information  beyond  what  is  stated in
MONITR.BWR which is shipped on the field test  tapes.   There  is  one
important  difference  between  the  two  beware files:  MONITR.BWR is
intended to contain items  of  interest  to  all  customers  when  the
product is released.  AUX.BWR contains field test specific information
of interest to only the field test sites.

For the benefit of sites entering the field test at  this  time,  some
information  which had previously been presented in this document will
appear again.  Be sure to read both beware files carefully.



2.0  LIST OF FILES ON THE AUXILLIARY TAPE

The following files are included on the Auxilliary tape:

     1.  AUX.BWR    - Beware file for this tape.

     2.  361KL.DDT  - Patch file for KL10 monitors.

     3.  361KS.DDT  - Patch file for KS10 monitors.

     4.  CNFHDW.MAC - Corrections to CONFIG SHOW HARDWARE.
Beware file for TOPS-10 version 7.04, Load 361                  Page 3


     5.  ORNMAC.MAC - Corrections to CONFIG SHOW HARDWARE.

     6.  SIG.MEM    - Software Installation Guide.
Beware file for TOPS-10 version 7.04, Load 361                  Page 4


3.0  PATCH FILE INSTALLATION

This Auxilliary tape contains,  among  other  things,  two  DDT  patch
files;   one  for  KL10  monitors  and  one for KS10 monitors.  Before
applying any patch file, be sure to read  its  contents.   Each  patch
within  the files will be preceded by a comment indicating the purpose
of the patch and what hardware or software options  are  required  for
its  installation.   For  example,  in  the  KL10 file, the LDMP patch
indicates it is necessary to  have  FTCIDSK  turned  on.   It  may  be
necessary  to  edit  out  certain patches which are not needed in your
configuration.

Patch files are typically installed using the following procedure:

                .GET SYS:system
                .DDT
                $Y
                File: patch-file
                ^Z
                .SAVE SYS:system

In the above example, "system" should be replaced by the name of  your
monitor  and  "patch-file" by the name of your patch file name.  While
other methods may be employed to patch a monitor, this  one  has  been
used by us exclusively.  The formatting of the destributed patch files
assumes this procedure will be used by the field test sites.  No other
patch file formats will be distributed.



4.0  PATCH DESCRIPTIONS

This section details the reasons for the various patches contained  in
the two patch files.



4.1  BAC STOPCODES AND CORRUPTED HISEGS

Occasionally, a BAC stopcode or a corrupted high segment  will  result
if  the  user's  job is virtual and the some pages are write-locked by
the monitor.  The user may notice the corruption after a save  of  the
corrupted  core  image.   The  corruption will usually appear as empty
(zero'ed) pages on subsequent GETs of the  saved  image.   This  patch
corrects the problem.



4.2  CHANGE STRUCTURE

If the CHANGE STRUCTURE option to the  startup  dialogue  is  used  to
change  the  structure  name,  the  corresponding  HOMLOG entry is not
updated.  This patch corrects the problem.
Beware file for TOPS-10 version 7.04, Load 361                  Page 5


4.3  CI DISK FAILOVER

This patch corrects problems with CI disk  failover  caused  by  FILIO
setting the pack status in UNISTS incorrectly.



4.4  DVPHY. UUO

The DVPHY.  UUO may fail to find DDBs following recent changes to  the
ordering  of  the  DDB  chain.   The affected DDBs are those for which
there is no prototype (in the AUTCON sense),  but  which  do  have  an
INTTAB entry.  This patch corrects the problem.



4.5  LOST IPCF ACKS

Occasionally, jobs get stuck in event wait  for  system  IPCF  for  no
apparent reason.  Some of them eventually take off again, some do not.
If the job for which the 'stuck' job is waiting does blocking IPCFR.s,
then  there  is a window after the point at which that job has decided
to give up and enter SL state, but before the  sending  job  can  tell
that,  during  which  a  packet  could arrive and be ignored.  If that
target job ever receives a second packet, it will process  them  both,
but  the original job will wait until that time.  This is most notably
seen inhouse with MX as the 'stuck' job and FILDAE as the target job.



4.6  SLEEP PROBLEM FOR RCNATC

This  patch  avoids  IME  stopcodes  caused  by   the   use   of   the
CONFIG AUTOCONFIGURE command.  Calls to SLEEP clobber too many ACs.



4.7  UNL STOPCODES

This patch eliminates random UNL stopcodes which  occur  when  virtual
jobs are being swapped.



4.8  LDMP

There are some deficiencies in the HSC and/or the CI20 microcode which
confuses  the  monitor  while  performing large transfers on CI disks.
These problems cannot be programmed around.   The  LDMP  patch  breaks
down  dump  mode  transfers  in  the hopes of not aggravating the disk
subsystem problems.  This patch is not guaranteed  to  work,  and  has
minimal  affects  on  dump  mode  transfers only.  It has no affect on
buffered  mode  transfers.   This  problem  has  existed  in  previous
releases.
Beware file for TOPS-10 version 7.04, Load 361                  Page 6


5.0  MISCELLANEOUS

5.1  DTE Reloading

A problem exists in DTESER which necessitates the use of the /PROTOCOL
switch  when  reloading  DTEs.   Failure to include this switch on the
DTELDR command file will cause the specified DTE to be  reloaded,  but
it will not come online.



5.2  CNFHDW.MAC And ORNMAC.MAC

The changes in these files corrects illegal memory references in ORION
when  the  CONFIG SHOW HARDWARE  command  is  used on a system without
internal channels or cache.



5.3  SIG.MEM

This file contains an updated version  of  the  Software  Installation
Guide.   While it represents the latest revisions of the manual, it is
not  complete.   We  would  appreciate  having  the  manual  reviewed.
Comments and corrections may be returned via the QAR system.



5.4  Documentation

The version of MONTAB.MEM supplied on  the  monitor  save-set  reflect
7.03 monitors.  It contains no 7.04 information.

[End of AUX.BWR]