ECO NUMBER:	 VAXTTDR02_061
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		PRODUCT:	 OPENVMS VAX OPERATING SYSTEM 6.1
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		UPDATED PRODUCT: OPENVMS VAX OPERATING SYSTEM 6.1
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		APPRX BLCK SIZE: 324
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                                COVER LETTER


1  KIT NAME:

     VAXTTDR02_061


2  KIT DESCRIPTION:

     2.1  Version(s) of OpenVMS to which this kit may be applied:

     OpenVMS VAX V6.0, V6.1


     2.2  Kits superseded by this kit:

     VAXTTDR01_061, VAXTTDR01_060


     2.3  Files patched or replaced for OpenVMS VAX V6.1:


      o  [SYS$LDR]TTDRIVER.EXE (new image)



     2.4  Files patched or replaced for OpenVMS VAX V6.0:


      o  [SYS$LDR]TTDRIVER.EXE (new image)



3  PROBLEMS ADDRESSED IN VAXTTDR02_061 KIT FOR OPENVMS V6.1, V6.0


      o  Users are unable to use the third party package IRIS.  This 3rd
         party  code is a mid-driver, meaning it is between the terminal
         class  driver  and  the  port  driver.   The  driver  uses  the
         IRP$W_BCNT  field  which  is  negative  (FFFx), causing a fatal
         bugcheck (SSRVEXCEPT).



4  PROBLEMS ADDRESSED IN VAXTTDR01_061 KIT


      o  When using the DCL command SEARCH, with the default  /highlight
         switch,  the  line does not wrap at the correct position on the
         terminal screen.


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                                                      17 November 1994


5  PROBLEMS ADDRESSED IN VAXTTDR01_060 KIT


      o  The user will see a  FATAL  bugcheck  (SSRVEXCEPT)  in  routine
         IO_POST  (in  MOVBUF), because the IRP$W_BCNT field is negative
         (FFFx) and tries to copy 64k of buffer space.

      o  The user will see a  FATAL  bugcheck  (SSRVEXCEPT)  in  routine
         CTRLAST  (in  module TTYFDT.MAR), because the CTRL list pointed
         to by R7 has been  emptied  while  inserting  an  entry.   This
         occurs because the call to COM$SETATTNAST was done at IPL 2 and
         an interrupt occurred.

      o  The user may see  the  following  error  message  when  setting
         terminal characteristics, even though there is really no error:

         -SYSTEM-F-NOLOG_IO, operation requires LOG_IO privilege


         The problem is that the logical UCB  is  used  instead  of  the
         physical UCB when comparing the baud rate.

         This problem can only occur when virtual terminals are  enabled
         and the port is set to /DISCONNECT and /NOSET_SPEED.



6  INSTALLATION INSTRUCTIONS:

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

         @SYS$UPDATE:VMSINSTAL VAXTTDR02_061 [location of the saveset]

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

     System should be rebooted after successful installation of the kit.
     If  you  have  other  nodes in your VAXcluster, they should also be
     rebooted in order to make use of the new image(s).




Copyright Digital Equipment Corporation 1994.  All Rights reserved.

This software is proprietary to and embodies the confidential technology
of Digital Equipment Corporation.  Possession, use, or copying of this
software and media is authorized only pursuant to a valid written license
from Digital or an authorized sublicensor.
                                                                           
        This ECO has not been through an exhaustive field test process.
        Due to the experimental stage of this ECO/workaround, Digital
        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.