DB 环境是：AIX 6.1 + Oracle 10.2.0.4，2节点。现在一个节点在撑着，压力很大。尝试启动挂掉的节点，可以正常启动，一旦执行DML 操作，节点就挂掉了。

ORA-00600: internal error code, arguments:[15764], [], [], [], [], [], [], []
Wed Sep 7 00:26:42 2011
Errors in file /apps/oracle/admin/sfc3db/udump/sfc3db2_ora_5054706.trc:
ORA-00600: internal error code, arguments: [15764], [], [], [], [], [], [], []
Wed Sep 7 00:26:44 2011
Trace dumping is performing id=[cdmp_20110907002644]
Wed Sep 7 00:27:10 2011
Errors in file /apps/oracle/admin/sfc3db/udump/sfc3db2_ora_2756730.trc:
ORA-00600: internal error code, arguments: [15764], [], [], [], [], [], [], []
Wed Sep 7 00:28:11 2011
Errors in file /apps/oracle/admin/sfc3db/udump/sfc3db2_ora_2756730.trc:
ORA-00600: internal error code, arguments: [15764], [], [], [], [], [], [], []

我问朋友是否还有其他的错误，朋友说只有这些。  

/apps/oracle/admin/sfc3db/udump/sfc3db2_ora_5054706.trc:calls aborted: 0, num est exec limit hit: 0
/apps/oracle/admin/sfc3db/udump/sfc3db2_ora_5054706.trc: name=update seq$ setincrement$=:2,minvalue=:3,maxvalue=:4,cycle#=:5,order$=:6,cache=:7,highwater=:8,audit$=:9,flags=:10where obj#=:1
/apps/oracle/admin/sfc3db/udump/sfc3db2_ora_5054706.trc: name=selectdecode(failover_method, NULL, 0 , 'BASIC', 1, 'PRECONNECT', 2 , 'PREPARSE', 4 ,0), decode(failover_type, NULL, 1 , 'NONE', 1 , 'SESSION', 2, 'SELECT', 4, 1),failover_retries, failover_delay, flags from service$ where name = :1
/apps/oracle/admin/sfc3db/udump/sfc3db2_ora_5054706.trc:selectSYS_CONTEXT('USERENV', 'SERVER_HOST'), SYS_CONTEXT('USERENV','DB_UNIQUE_NAME'), SYS_CONTEXT('USERENV', 'INSTANCE_NAME'),SYS_CONTEXT('USERENV', 'SERVICE_NAME'), INSTANCE_NUMBER, STARTUP_TIME,SYS_CONTEXT('USERENV', 'DB_DOMAIN') from v$instance whereINSTANCE_NAME=SYS_CONTEXT('USERENV', 'INSTANCE_NAME')
/apps/oracle/admin/sfc3db/udump/sfc3db2_ora_5054706.trc: name=select value$from props$ where name = 'GLOBAL_DB_NAME'
/apps/oracle/admin/sfc3db/udump/sfc3db2_ora_5054706.trc: name=selectprivilege#,level from sysauth$ connect by grantee#=prior privilege# andprivilege#>0 start with grantee#=:1 and privilege#>0
/apps/oracle/admin/sfc3db/udump/sfc3db2_ora_5054706.trc: name=select privilege#from sysauth$ where (grantee#=:1 or grantee#=1) and privilege#>0

之前整理过一篇文章：

ORA-600 各个参数含义说明

对于手工中断的重建索引，会遗留一些temporary segments。 因为rebuild index时，会在用户索引空间的segments，会分配一个temporary segment 来保存索引的信息，当rebuild 结束之后，old index 被droped 掉，之前分配的temporary segments 会定义为permanent segment。

如果我们中断了rebuild 操作，那么SMON会三分钟清理一次(前提是接到post)，如果SMON过于繁忙那么可能temporary segment长期不被清理。temporary segment长期不被清理可能造成一个典型的问题是:在rebuild index online失败后，后续执行的rebuild index命令要求之前产生的temporary segment已被cleanup，如果cleanup没有完成那么就需要一直等下去。

下面两篇文章有详细的说明：

Oracle alter index rebuild 说明

Oracle rebuild index 报ORA-01652 解决办法 

在MOS 上搜了一下，有一篇相关文章：

An ORA-600[15764] is highly transient in nature.    The purposeof this note is to document a known workaround if you see this error withsimilar circumstances.

ksedmp: internal or fatal error 
ORA-00600: internal error code, arguments: [15764], [], [], [], [], [], [], [] 
Current SQL statement for this session:
SELECT /*+ PARALLEL (ORG,3,3)*/   
ORG.X_EFX_SSN,   
ORG.X_EFX_BIRTH_DT,   
COUNT(*)   
FROM   
SIEBEL.S_ORG_EXT ORG   
GROUP BY   
X_EFX_SSN,   
X_EFX_BIRTH_DT   
HAVING COUNT(*) > 1 

----- Call Stack Trace -----   
kxfprigdb