故障现象：


　　XX网数据库宕机，查看日志发现以下内容： Wed Jun 8 20:24:17 2005
　　Errors in file /u02/app/oracle/admin/unicom/udump/unicom_ora_661.trc:
　　ORA-07445: \263\366\317\326\322\354\263\243: \272\313\320\304\327\252\264\242 [0000000101C3089C] [SIGSEGV] [Address not mappe
　　d to object] [0x000000000] [] []
　　Wed Jun 8 20:24:22 2005
　　Errors in file /u02/app/oracle/admin/unicom/bdump/unicom_pmon_11598.trc:
　　ORA-07445: exception encountered: core dump [0000000101C399A0] [SIGSEGV] [Address not mapped to object] [0x000000000] [] []
　　Wed Jun 8 20:24:23 2005
　　Errors in file /u02/app/oracle/admin/unicom/bdump/unicom_pmon_11598.trc:
　　ORA-07445: exception encountered: core dump [0000000101C399A0] [SIGSEGV] [Address not mapped to object] [0x000000000] [] []
　　ORA-00602: internal programming exception
　　ORA-07445: exception encountered: core dump [0000000101C399A0] [SIGSEGV] [Address not mapped to object] [0x000000000] [] []
　　Wed Jun 8 20:24:33 2005
　　CKPT: terminating instance due to error 472
　　Instance terminated by CKPT, pid = 11604
　　Wed Jun 8 21:04:47 2005
　　Starting ORACLE instance (normal)


　　解决办法：

　　Oracle工程师建议安装Oracle补丁p3949307_9206_SOLARIS64，经过测试，安装步骤如下： (注意，首先shutdown数据库)

　　1，解压补丁文件

　　unzip p3949307_9206_SOLARIS64.zip

　　解开后的目录是：4060756

　　2，修改oraclehomeproperties.xml文件，该文件在$ORACLE_HOME/inventory/ContentsXML目录下。

　　cp oraclehomeproperties.xml oraclehomeproperties.xmlb.bak

　　vi oraclehomeproperties.xml

　　更改数字453 ->23,存盘退出

　　3，修改PATH路径为

　　PATH=$ORACLE_HOME/bin:/usr/ccs/bin:${PATH}

　　4，执行opatch apply命令

　　cd 4060756

　　$ORACLE_HOME/OPatch/opatch apply

　　5，安装成功后会出现如下结果


　　Updating inventory...
　　/oracle92/app/oracle/product/9.2.0.1/OPatch/opatch.pl version: 1.0.0.0.51
　　Copyright (c) 2001-2004 Oracle Corporation. All Rights Reserved.
　　OPatch succeeded.