一套Itanium HP-UX上的9.2.0.5系统最近出现了ORA-00600: internal error code, arguments: [kgskdecrstat1], [], [], [], [], [],内部错误，其错误日志如下:
Mon Apr 18 12:32:20 2011
ORA-00600: internal error code, arguments: [kgskdecrstat1], [], [], [], [], [], [], []
ARC0: Completed archiving log 6 thread 1 sequence 831803
Mon Apr 18 12:32:22 2011
ORA-00600: internal error code, arguments: [kgskdecrstat1], [], [], [], [], [], [], []
ORA-00600: internal error code, arguments: [kgskdecrstat1], [], [], [], [], [], [], []
Mon Apr 18 12:32:23 2011
ORA-00600: internal error code, arguments: [kgskdecrstat1], [], [], [], [], [], [], []
ORA-00600: internal error code, arguments: [kgskdecrstat1], [], [], [], [], [], [], []
Trace file
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Oracle9i Enterprise Edition Release 9.2.0.5.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.5.0 - Production
ORACLE_HOME = /opt/oracle/product/9.2.0.5
System name: HP-UX
Release: B.11.23
Version: U
Machine: ia64
Redo thread mounted by this instance: 1
Oracle process number: 28
Unix process pid: 14827, image: oracle@(TNS V1-V3)
*** 2011-04-18 02:39:15.043
*** SESSION ID:(276.16183) 2011-04-18 02:39:15.042
DEADLOCK DETECTED
Current SQL statement for this session:
The following deadlock is not an ORACLE error. It is a
deadlock due to user error in the design of an application
or from issuing incorrect ad-hoc SQL. The following
information may aid in determining the deadlock:
Deadlock graph:
---------Blocker(s)-------- ---------Waiter(s)---------
Resource Name process session holds waits process session holds waits
TX-00030022-0070d56f 28 276 X 344 259 X
TX-000a0012-0058e4fc 344 259 X 28 276 X
session 276: DID 0001-001C-0000002C session 259: DID 0001-0158-000020E6
session 259: DID 0001-0158-000020E6 session 276: DID 0001-001C-0000002C
Rows waited on:
Session 259: obj - rowid = 00001F0D - AABNCDAAEAAAAXYAAL
(dictionary objn - 7949, file - 4, block - 1496, slot - 11)
Session 276: obj - rowid = 00001F0B - AABNCAAAEAAAAXCAAY
(dictionary objn - 7947, file - 4, block - 1474, slot - 24)
Information on the OTHER waiting sessions:
Session 259:
pid=344 serial=17280 audsid=106170227 user: 41
program: JDBC Thin Client
application name: JDBC Thin Client, hash value=0
Current SQL Statement:
End of information on OTHER waiting sessions.
*** 2011-04-18 12:32:20.392
ksedmp: internal or fatal error
ORA-00600: internal error code, arguments: [kgskdecrstat1], [], [], [], [], [], [], []
----- Call Stack Trace -----
... kgskdecrstat kskdecrstat ktudecrustat ktcdso ktcrcm ktdcmt k2lcom ...
----- End of Call Stack Trace -----
PROCESS STATE
-------------
program: JDBC Thin Client
application name: JDBC Thin Client, hash value=0
last wait for 'SQL*Net message from client' blocking sess=0x0 seq=39332 wait_time=21242
driver id=74637000, #bytes=1, =0
可以看到以上引发ORA-00600[kgskdecrstat1]内部错误的进程同时发现了死锁(DEADLOCK)，在MOS上搜索可以发现"Bug 2894072: ORA-00600: INTERNAL ERROR CODE, ARGUMENTS: [KGSKDECRSTAT1]"，但是该Bug最早发生在9.2.0.3上，已经确定影响9.2.0.x所有版本，并且在9.2.0.5上没有backport的bug fix。
提交sr后，Oracle Gcs给出了解决的solution:
1.升级数据库到10.2.0.5，11.1.0.7，11.2.0.2等目前支持的版本
2.解决引发该bug的ORA-00060 dead lock问题
3.如果在解决ORA-00060后仍出现以上ORA-00600[kgskdecrstat1]内部错误，且启用了9i早期版本中的resource manager的话，可以尝试禁用该特性:
ALTER SYSTEM SET resource_manager_plan='' SCOPE=BOTH;
以便绕过bug 2494790。