Oracle 9205 RAC 下的ora-01033错误问题，清高手指点！！！

hiders

用客户端连接数据库时报告ora-01033 oracle initiaciation or shutdown in progress 错误，连接不上。
alert_sid1.log
Sat Oct 01 11:02:35 2005
This instance was first to mount
LCK0 started with pid=19
Sat Oct 01 11:02:40 2005
Errors in file d:\oracle\admin\gaczrk\udump\***1_ora_1996.trc:
ORA-00600: ?????????: [kccsbck_first], [2], [3706434442], [], [], [], [], []


Dump file d:\oracle\admin\gaczrk\udump\***1_ora_1996trc
Sat Oct 01 10:42:12 2005
ORACLE V9.2.0.5.0 - Production vsnsta=0
vsnsql=12 vsnxtr=3
Windows 2000 Version 5.2 , CPU type 586
Oracle9i Enterprise Edition Release 9.2.0.5.0 - Production
With the Partitioning, Real Application Clusters, OLAP and Oracle Data Mining options
JServer Release 9.2.0.5.0 - Production
Windows 2000 Version 5.2 , CPU type 586
Instance name: gaczrk1

Redo thread mounted by this instance: 0 <none>;

Oracle process number: 18

Windows thread id: 2124, image: ORACLE.EXE


*** SESSION ID18.3) 2005-10-01 10:42:12.312
*** 2005-10-01 10:42:12.312
ksedmp: internal or fatal error
ORA-00600: ?????????: [kccsbck_first], [2], [3706434442], [], [], [], [], []
Current SQL statement for this session:
alter database mount exclusive
----- Call Stack Trace -----
calling              call     entry                argument values in hex      
location             type     point                (? means dubious value)     
-------------------- -------- -------------------- ----------------------------
_ksedmp+327          CALLrel  _ksedst+0            
_ksfdmp.108+14       CALLrel  _ksedmp+0            3
_kgerinv+131         CALLreg  00000000             16F508 3
_kgesinv+29          CALLrel  _kgerinv+0           16F508 366C268 1A84E90 2

生产中数据库，请指点！！！拜谢！！