ORA-12540 running DBCA

Hello all,
I have just installed Oracle 9.2.0.1.0. During the install, and now when I try to run DBCA, I get an error:
ORA-12540: TNS:internal limit restriction exceeded
It happens during the "Creating and starting Oracle instance" phase. (So "Copying database files" and "Initializing database" are completed. For what it's worth, the progress meter is at 46% when the error occurs.)
Does anyone have any idea why this would be occuring? I'm running Windows XP Professional.
Thanks you,
Owen Gibbins

There could be a few issues:
It is very likely that your system has run out of memory at that memory and that the listener is either unable to spawn a new process or shutdown and needed by the newly created instance once the bootstrap segment is set. I encourage you to:
- You may need to increase your process parameter (main reason).
- You many need to increase your virtual memory settings.
- Check the files on your tnsadmin directory, and verify their accuracy and uniquess in the TNS_ADMIN directory.
If your installation completed, in spite of no database created, you can patch by restarting with the DBCA database creation and setting process to a reasonable larger value. I believe that -if you have the minimum resources 300 is reasonable.
If you would like to do a full clean install and rather uninstall, then:
- Perform a clean uninstall by removing files from Oracle Home, and all Oracle directories.
Sometimes a clean install means to reinstalling Windows. However, if do not have a previous home, and know to clean your registry from classes, and other Oracle values and entries in your registry do so. Do not forget to delete your Oracle inventory, which is typically set in your C (OS) drive.
There are other reasons why this error can occur, but setting processes accordingly is your best choice. If your environment is planned for a shared server, setting the appropriate parameters that somehow interdepend with processes, such as dispatchers. Setting processes will autoset SESSIONS and CIRCUITS. Also if using a shared server, formerly MTS, do not try to configure any advanced features or set up any specific dispatcher tuning at install/db creation.
Good luck with your overall progress.

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    The environment settings are as follows ...
    ORACLE_HOME : /d01/oracle/opda/apps/tech_st/10.1.2
    ORACLE_SID :
    TWO_TASK : OPDA
    PATH : /d01/oracle/opda/inst/apps/OPDA_oratest/admin/scripts:/d01/oracle/opda/apps/tech_st/10.1.3/perl/bin:/d01/oracle/opda/apps/tech_st/10.1.2/bin:/d01/oracle/opda/apps/apps_st/appl/fnd/12.0.0/bin:/d01/oracle/opda/apps/apps_st/appl/ad/12.0.0/bin:/d01/oracle/opda/apps/tech_st/10.1.3/appsutil/jdk/jre/bin::/d01/oracle/opda/apps/tech_st/10.1.2/bin:/usr/bin:/usr/sbin:/d01/oracle/opda/apps/tech_st/10.1.3/appsutil/jdk/jre/bin:/d01/oracle/opda/apps/tech_st/10.1.3/perl/bin:/d01/oracle/opda/inst/apps/OPDA_oratest/admin/scripts:/d01/oracle/opda/apps/tech_st/10.1.3/perl/bin:/d01/oracle/opda/apps/tech_st/10.1.2/bin:/d01/oracle/opda/apps/tech_st/10.1.3/appsutil/jdk/jre/bin:/d01/oracle/opda/apps/tech_st/10.1.2/bin:/usr/bin:/usr/sbin:/d01/oracle/opda/apps/tech_st/10.1.3/appsutil/jdk/jre/bin:/bin:/usr/bin:/usr/local/bin:/usr/local/bin/X11:/usr/X11R6/bin:/usr/sbin:.:/d01/oracle/opda/apps/tech_st/10.1.2/OPatch:/d01/oracle/opda/apps/tech_st/10.1.3/appsutil/jdk/bin:/d01/oracle/opda/apps/tech_st/10.1.3/ant/bin:/home/applopda/bin:/d01/oracle/opda/apps/tech_st/10.1.2/OPatch:/d01/oracle/opda/apps/tech_st/10.1.3/appsutil/jdk/bin:/d01/oracle/opda/apps/tech_st/10.1.3/ant/bin
    Library Path : /d01/oracle/opda/apps/tech_st/10.1.2/jdk/jre/lib/i386:/d01/oracle/opda/apps/tech_st/10.1.2/jdk/jre/lib/i386/server:/d01/oracle/opda/apps/tech_st/10.1.2/jdk/jre/lib/i386/native_threads:/d01/oracle/opda/apps/apps_st/appl/cz/12.0.0/bin:/d01/oracle/opda/apps/tech_st/10.1.2/lib32:/d01/oracle/opda/apps/tech_st/10.1.2/lib:/usr/X11R6/lib:/usr/openwin/lib:/d01/oracle/opda/apps/tech_st/10.1.2/jdk/jre/lib/i386:/d01/oracle/opda/apps/tech_st/10.1.2/jdk/jre/lib/i386/server:/d01/oracle/opda/apps/tech_st/10.1.2/jdk/jre/lib/i386/native_threads:/d01/oracle/opda/apps/apps_st/appl/sht/12.0.0/lib
    SQLPLUS Executable : /d01/oracle/opda/apps/tech_st/10.1.2/bin/sqlplus
    SQL*Plus: Release 10.1.0.5.0 - Production on Thu Sep 29 08:57:00 2011
    Copyright (c) 1982, 2005, Oracle. All rights reserved.
    Enter value for 1: Enter value for 2: ERROR:
    ORA-12157: TNS:internal network communication error
    Unable to generate listener.ora from database
    Using default listener.ora file
    .end std out.
    .end err out.
    Error while generating listener.ora.
    StackTrace:
    java.lang.Exception: Error while generating listener.ora.
         at oracle.apps.ad.tools.configuration.NetServiceHandler.generateMiddleTierListener(NetServiceHandler.java:2495)
         at oracle.apps.ad.tools.configuration.NetServiceHandler.processNode(NetServiceHandler.java:2269)
         at oracle.apps.ad.tools.configuration.NetServiceHandler.main(NetServiceHandler.java:3010)

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