Oracle Database Discussions

Hi,

When i try to startup my database(10g), i am getting this error after database monted.
ORA-00603: ORACLE server session terminated by fatal error.
(Startup nomount is ok)

conn /as sysdba

Total System Global Area 1048576000 bytes
Fixed Size 1223392 bytes
Variable Size 343934240 bytes
Database Buffers 700448768 bytes
Redo Buffers 2969600 bytes
Database mounted.
ORA-00603: ORACLE server session terminated by fatal error

Alert.log:

Errors in file /u01/app/oracle/product/10.2.0/db_1/admin/db/udump/db_ora_9917.trc:
ORA-00603: ORACLE server session terminated by fatal error
ORA-00600: internal error code, arguments: [4194], [24], [14], [], [], [], [], []
ORA-00600: internal error code, arguments: [4194], [24], [14], [], [], [], [], []

The trace file is 1,6GB(!)

Trace file:

----- Redo read statistics for thread 1 -----
Read rate (ASYNC): 26Kb in 0.78s => 0.03 Mb/sec
Total physical reads: 4096Kb
Longest record: 0Kb, moves: 0/62 (0%)
Change moves: 35/122 (28%), moved: 0Mb
Longest LWN: 14Kb, moves: 0/13 (0%), moved: 0Mb
Last redo scn: 0x0000.31539752 (827561810)
----------------------------------------------
NO VALID LOG MEMBER FOR SEQ# 20884 OF THREAD 1!
NO VALID LOG MEMBER FOR SEQ# 20883 OF THREAD 1!
*** 2011-01-06 06:18:51.782
ksedmp: internal or fatal error
ORA-00600: internal error code, arguments: [4194], [56], [49], [], [], [], [], []
Current SQL statement for this session:
update service$ set name = :1, name_hash = :2, network_name = :3, creation_date = :4, creation_date_hash = :5, deletion_date = null, goal = :6, flags = :
----- Call Stack Trace -----

Thanks