Dear SCO Customer,

Support Level Supplement (SLS) ptf7635a, the UnixWare 7 char Driver 
Supplement, addresses the following problem:

      - An incorrect KMA buffer reference to km_type occurs after kernel 
        memory has been freed.


Contents
--------

        /etc/conf/pack.d/char/Driver_atup.o
        /etc/conf/pack.d/char/Driver_mp.o


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

SLS ptf7635a should only be installed on:

        UnixWare 7 Release 7.0.0, 7.0.1, 7.1.0, 7.1.1

NOTE:  This supplement has been superseded by
the UnixWare 7.1.1 Maintenance Pack for UnixWare 7.1.1 platforms
only.  The UnixWare 7.1.1 Maintenance Pack is available from:

ftp://ftp.caldera.com/pub/unixware7/uw711pk


Installation Instructions
-------------------------

1. Download the ptf7635a.Z file to the /tmp directory on your machine.

2. As root, uncompress the file and add the SLS package to your system
   using these commands:

        $ su
        Password: <type your root password>
        # uncompress /tmp/ptf7635a.Z
        # pkgadd -d /tmp/ptf7635a
        # rm /tmp/ptf7635a

Alternatively, this SLS package may be installed in quiet mode,
that is, without displaying the release notes and asking for
installation confirmation.  To do this, use these commands:

        $ su
        Password: <type your root password>
        # uncompress /tmp/ptf7635a.Z
        # pkgadd -qd /tmp/ptf7635a all
        # rm /tmp/ptf7635a

3. Reboot the system after installing this SLS package.

The release notes displayed prior to installation can be found in:

        /var/sadm/pkg/ptf7635/install/ptf7635.txt


Removal Instructions
--------------------

1. As root, remove the SLS package using these commands:

        $ su
        Password: <type your root password>
        # pkgrm ptf7635

2. Reboot the system after removing this SLS package.

If you have questions regarding this SLS, or the product on which 
it is installed, please contact your software supplier.