ora-04043 dba_data_file is not exit

I found a bug of Oracle

Under the mount stage , there is error reported, when you desc dba_.....

SYS@ning>select status from v$instance;

STATUS
------------
MOUNTED

SYS@ning>desc dba_data_files
ERROR:ORA-04043: object dba_data_files does not exist

And then alter database open, but it is same problem

SYS@ning>alter database open;

Database altered.

SYS@ning>desc dba_data_files
ERROR:ORA-04043: object dba_data_files does not exist
SYS@ning>desc dba_temp_files;
Name Null? Type
----------------------------------------- -------- ----------------------------
FILE_NAME VARCHAR2(513)
FILE_ID NUMBER
TABLESPACE_NAME NOT NULL VARCHAR2(30)
BYTES NUMBER
BLOCKS NUMBER
STATUS CHAR(9)
RELATIVE_FNO NUMBER
AUTOEXTENSIBLE VARCHAR2(3)
MAXBYTES NUMBER
MAXBLOCKS NUMBER
INCREMENT_BY NUMBER
USER_BYTES NUMBER
USER_BLOCKS NUMBER

That is means if only you describe some dba view under mount stage , Oracle can not identify it any more, whatever is under mount stage or open. the only way to solve this problem is restart up the database

Oracle release that this bug gonna impact on Oracle Server - Enterprise Edition - Version: <8.1.7.4 to 10.1.0.3

but actually , on 10.2.0.3 there is still same problem

Let me give you a ridiculous solution
1) Don't describe the dba_* views at mount stage.
2) If you issue DESC of any DBA_*views at mount stage, then shutdown and restart the instance.