系统：rhel 6.8
数据库：oracle 11.2.0.4
异常描述：在巡检时发现log文件存在以下告警，ORA-600[723](PGA内存泄露).
Mon Jul 11 17:39:41 2022
Errors in file /u01/oracle/app/oracle/diag/rdbms/orcl/orcl/trace/orcl_ora_34745.trc (incident=500456):
ORA-00600: internal error code, arguments: [723], [133856], [236816], [memory leak], [], [], [], [], [], [], [], []
ORA-03135: connection lost contact
Incident details in: /u01/oracle/app/oracle/diag/rdbms/orcl/orcl/incident/incdir_500456/orcl_ora_34745_i500456.trc
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
incident中.trc文件显示如下：
*** 2022-07-11 17:39:41.105
Dump continued from file: /u01/oracle/app/oracle/diag/rdbms/orcl/orcl/trace/orcl_ora_34745.trc
ORA-00600: internal error code, arguments: [723], [133856], [236816], [memory leak], [], [], [], [], [], [], [], []
ORA-03135: connection lost contact
========= Dump for incident 500456 (ORA 600 [723]) ========
----- Beginning of Customized Incident Dump(s) -----
******** ERROR: PGA memory leak detected 236816 > 133856 ********
========================================
SUMMARIZED MEMORY USAGE FOR THIS PROCESS
----------------------------------------
60812432 bytes, 204 chunks: "free memory "
top uga heap ds=0xc0d2140 dsprt=(nil)
10836432 bytes, 181 chunks: "free memory "
pga heap ds=0xc0cc6e0 dsprt=(nil)
261384 bytes, 1 chunk : "free memory "
top call heap ds=0xc0d1f20 dsprt=(nil)
236656 bytes, 302 chunks: "kopolal void "
pga heap ds=0xc0cc6e0 dsprt=(nil)
197336 bytes, 25 chunks: "permanent memory "
pga heap ds=0xc0cc6e0 dsprt=(nil)
736 bytes, 2 chunks: "permanent memory "
top call heap ds=0xc0d1f20 dsprt=(nil)
160 bytes, 1 chunk : "heap_kdlipga "
pga heap ds=0xc0cc6e0 dsprt=(nil)
80 bytes, 1 chunk : "permanent memory "
top uga heap ds=0xc0d2140 dsprt=(nil)
Mos[Doc ID 2457941.1]文档与以上场景类似，此为Bug 28751438，
Cause：CTRL-C causes an exception to occur, which is an abnormal abort of the spatial query.
此次内存泄漏不是非常频繁，可以忽略.不过也可以通过升级解决该告警.
Oracle提供10262事件来屏蔽这个错误，不过不推荐设置该事件.
