TECHNICAL INFORMATION DOCUMENT

TITLE:              PTF603 - TCP fix for KMA memory corruption
DOCUMENT ID:        TID300035
DOCUMENT REVISION:  B
DATE:               25JAN95
ALERT STATUS:       Yellow
INFORMATION TYPE:   Symptom Solution
README FOR:         PTF603

PRODUCT and VERSION:
UnixWare 1.1

ABSTRACT:

The ptf603 file contains These release notes acquaint you with the
contents of UnixWare PTF603 - TCP module fix to prevent KMA memory 
corruption panic PTF603 fixes the KMA memory corruption panic from the 
tcp module on machines with large memory (>=32 meg).  This PTF requires 
UnixWare 1.1 and is replaced by update 1.1.2

SYMPTOM

TCP module panics on machines with more then 32 MB memory

SOLUTION

Apply the ptf603 file.


Installation Instructions:

DATATYPE: datastream

1.  Download the ptf603.Z and ptf603.txt files to the /tmp directory  
    on your machine.

2.  Read the release notes contained in this file.

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

     $ su
     # uncompress /tmp/ptf603.Z
     # pkgadd -d /tmp/ptf603 ptf603

Solution Specifics

1. General Description

These release notes acquaint you with the contents of UnixWare 
PTF603 - TCP module fix to prevent KMA memory corruption panic 
PTF603 fixes the KMA memory corruption panic from the tcp module 
on machines with large memory (>=32 meg).

2. Software Notes

PTF603 requires UnixWare 1.1 to be installed on the system. 
PTF603 contains an updated version of TCP module.  After this package 
is added the system is to be rebooted to include the new module in 
the system kernel. 

The old driver will be saved in the directory
/var/sadm/pkg/ptf603/etc/conf/pack.d/tcp.

If you wish to restore the system (i.e. un-install this fix) and 
the package can not be removed using pkgrm for some reason: 

Please do the following:

Copy Driver.o from the above specified directory to /etc/conf/pack.d/tcp.
Remove the directory "/var/sadm/pkg/ptf603".  Rebuilt the kernel (with
idbuild) and reboot the system.

NOTE: This patch is replaced by update 1.1.2


3. Installation Instructions

Enter:

     # pkgadd -d diskette1

to install the driver.  After this package is added the system is to be
rebooted to include the new module in the system kernel.