ORA-00600: internal error code, arguments: [kewrose_1]

Oracle RDBMS 11.2.0.2 on solaris 10

everytime I try running I hit this error . did a metalink search no luck .

SQL> exec dbms_workload_repository.create_snapshot; BEGIN dbms_workload_repository.create_snapshot; END;

*
ERROR at line 1:
ORA-00600: internal error code, arguments: [kewrose_1], [600], [ORA-00600: internal error code, arguments: [ktspgfb-1], [], [], [], [], [], [], [], [], [], [], []
], [], [], [], [], [], [], [], [], []

ORA-06512: at "SYS.DBMS_WORKLOAD_REPOSITORY", line 99
ORA-06512: at "SYS.DBMS_WORKLOAD_REPOSITORY", line 122
ORA-06512: at line 1

thanks in advance
Kart

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