ORA-07445:[kghuclientasp()+256] [SIGSEGV]，ORA-03135

alert文件中报错如下：
[code]Wed Oct 16 20:30:29 EAT 2013
Errors in file /oracle/app/admin/XXXX/udump/XXXX_ora_17636.trc:
ORA-07445: exception encountered: core dump [kghuclientasp()+256] [SIGSEGV] [Address not mapped to object] [0xA0000000203BFE68] [] []
ORA-03135: connection lost contact[/code]
经过查看MOS，发现此07445错误由BUG 13105730引起（文档 ID 1594391.1），在执行PL/SQL匿名块有时会导致内存损坏，从而导致07445错误，影响的数据库版本：10.2.0.4 到 11.2.0.2。官方给出的方案如下：

This issue is fixed in

12.1.0.1 (Base Release)
11.2.0.3 (Server Patch Set)
11.2.0.2.8 Database Patch Set Update

If you don't want to upgrade to one of the releases above:

1. flushing shared pool "may' help, but that can be costly;

2. or check if it's available on My Oracle Support the oneoff patch 9478199 on top of your current release and your platform

也就是a、升级数据库版本；b、清空shared pool缓存可能有用；c、打上补丁9478199。