TECHNICAL INFORMATION DOCUMENT

TITLE:  TF2200 - Memory Driver (mem)
DATE:  08DEC95
README FOR:  TF2200
PRODUCT and VERSION:

UnixWare 2.01

Installation Instructions:  

DATATYPE: datastream

1.  Download the tf2200.Z and tf2200.txt files to the /tmp directory
    on your machine.

2.  Read the release notes contained in this file and follow the 
    instuctions to add the package to your system.

3.  Now become root, uncompress the file and add the package to your 
    system using the following commands:

        $ su
        # uncompress /tmp/tf2200.Z
        # pkgadd -d /tmp/tf2200

ENGINEERING RELEASE NOTES
-------------------------

Title
-----

PTF2200 - Memory Driver (mem) Patch

Product And Version
-------------------

UnixWare 2.03

Abstract
--------

Corrects an error that can cause a panic or system hang when
large files are mapped onto memory (mmap).

Symptom
--------

The system hangs or panics when large files are mapped onto
memory.


SOLUTION SPECIFICS
------------------

General Description.
-------------------

This PTF installs a new memory driver (mem) which correct the
errors described above.


New Features.
------------

None

Software Notes and Recommendations.
----------------------------------

This PTF should be installed on all UnixWare 2.03 systems.  If
the OS Multiprocessor Support (osmp) package is subsequently
installed, re-installation of this PTF will be necessary.

Testing of the modified software contained in this package has
been conducted only to the extent necessary to confirm that it
resolves the problem(s) stated above ("Symptom").  Such testing
consists of recreating the problem conditions and verifying that 
the problem no longer occurs.  No other testing of this software 
has been done.

Hardware Notes and Recommendations.
----------------------------------

This PTF is targeted for the i386, i486 and Pentium CPU's.

Installation Instructions.
-------------------------

A system reboot will be needed following the installation of this
PTF.