Unknown error codes: ORA-00600, ORA-06544, and ORA-06553

I am currently running Oracle9i Enterprise Edition Release 9.2.0.4.0, production with the partitioning option JServer Release 9.2.0.4.0, and production ORACLE_HOME = /oradev01/oracle/product/9.2.0.1.0. I am getting this error in th dump trace log:

*** 2004-08-25 13:32:42.957
ksedmp: internal or fatal error
ORA-00600: internal error code, arguments: [15419], [severe error during PL/SQL execution], [], [], [], [], [], []
ORA-06544: PL/SQL: internal error, arguments: [76607], [], [], [], [], [], [], []
ORA-06553: PLS-801: internal error [76607]

Here is the current SQL statement for this session:

DECLARE
contact_id NUMBER;
TYPE CURSOR_TYPE_0 IS REF CURSOR;
retcur CURSOR_TYPE_0;
BEGIN
contact_id := 1466;

Now I call the stored program (note: uou have to use SQL Editor to edit and run this program, therefore you cannot use bind variables to pass arguments):

smsweb.userphoneinfo(contact_id,retcur);

Next, it outputs the result:

Unknown cursor return type

If required, I edit the code to display cursor output EXCEPTION WHEN OTHERS THEN:

dbms_output.put_line(SubStr('Error '||TO_CHAR(SQLCODE)||': 
'||SQLERRM, 1, 255)); RAISE; END;