ORA-00600: internal error code, arguments: [4194] solution found that the alarm log contains the ORA-00600: internal error code, arguments: [4194] error. This error indicates that the undo tablespace has the following solution: SQL> create undo tablespace undotbs2 datafile '/oradata/jiaojie/undotbs02.dbf' size 2g; create undo tablespace undotbs2 datafile '/oradata/jiaojie/undotbs02.dbf' size 2g * ERROR at line 1: ORA-00607: Internal error occurred while making a change to a data blockORA-00600: internal error code, arguments: [4194], [12], [6], [], [], [], [], [] SQL> create pfile = '/home/oracle/initjiaojie. ora 'from spfile; File created. SQL> shutdown immediateORA-03113: end-of-file on communication channelSQL> SQL> conn/as sysdbaConnected to an idle instance. SQL> startup pfile = '/home/oracle/initjiaojie. ora '; ORACLE instance started. total System Global Area 2147483648 bytesFixed Size 2097624 bytesVariable Size 1040191016 bytesDatabase Buffers 1073741824 bytesRedo Buffers 31453184 bytesDatabase mounted. database opened. SQL> create undo tablespace undotbs2 datafile '/oradata/jiaojie/undotbs02.dbf' size 2g; create undo tablespace undotbs2 datafile '/oradata/jiaojie/undotbs02.dbf' size 2g * ERROR at line 1: ORA-01543: tablespace 'undotbs2 'already exists -- did not expect the front side to report an ERROR, however, UNDOTBS2 is created with SQL> show parameter undo NAME TYPE VALUE =----------- using undo_management string MANUALundo_retention integer 900undo_tablespace string SYSTEMSQL> alter system set undo_tablespace = 'undotbs2 '; alter system set undo_tablespace = 'undotbs2 '* ERROR at line 1: ORA-02097: parameter cannot be modified because specified value is invalidORA-30014: operation only supported in Automatic Undo Management mode SQL> shutdown immediateDatabase closed. database dismounted. ORACLE instance shut down. SQL> startupORACLE instance started. total System Global Area 2147483648 bytesFixed Size 2097624 bytesVariable Size 1040191016 bytesDatabase Buffers 1073741824 bytesRedo Buffers 31453184 bytesDatabase mounted. database opened. SQL> alter system set undo_tablespace = 'undotbs2 '; System altered. SQL> shutdown immediateDatabase closed. database dismounted. ORACLE instance shut down. SQL> startupORACLE instance started. total System Global Area 2147483648 bytesFixed Size 2097624 bytesVariable Size 1040191016 bytesDatabase Buffers 1073741824 bytesRedo Buffers 31453184 bytesDatabase mounted. database opened. SQL> show parameter undo NAME TYPE VALUE ------------------------------------ ---------------------------------------- undo_management string AUTOundo_retention integer 900undo_tablespace string undotbs2