标签归档：ORA-600[723]

在以前分析过ORA-600[729](SGA内存泄露),这次遇到ORA-600[723](PGA内存泄露)
操作系统数据库信息

ORACLE V9.2.0.3.0 - Production vsnsta=0
vsnsql=12 vsnxtr=3
Windows 2000 Version 5.2 Service Pack 2, CPU type 586
Oracle9i Enterprise Edition Release 9.2.0.3.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.3.0 - Production
Windows 2000 Version 5.2 Service Pack 2, CPU type 586
Instance name: dsdata

alert报错ORA-600[723]

Tue Jun 05 12:16:35 2012
Shutting down instance: further logons disabled
Shutting down instance (immediate)
License high water mark = 274
Tue Jun 05 12:16:40 2012
alter database close normal 
Tue Jun 05 12:16:40 2012
SMON: disabling tx recovery
SMON: disabling cache recovery
Tue Jun 05 12:16:40 2012
Shutting down archive processes
Archiving is disabled
Tue Jun 05 12:16:40 2012
ARCH shutting down
Tue Jun 05 12:16:40 2012
ARCH shutting down
ARC1: Archival stopped
Tue Jun 05 12:16:40 2012
ARC0: Archival stopped
Tue Jun 05 12:16:40 2012
Thread 1 closed at log sequence 406
Successful close of redo thread 1.
Tue Jun 05 12:16:41 2012
Completed: alter database close normal
Tue Jun 05 12:16:41 2012
alter database dismount
Completed: alter database dismount
ARCH: Archiving is disabled
Shutting down archive processes
Archiving is disabled
Archive process shutdown avoided: 0 active
ARCH: Archiving is disabled
Shutting down archive processes
Archiving is disabled
Archive process shutdown avoided: 0 active
Tue Jun 05 12:16:43 2012
Errors in file d:\oracle\admin\dsdata\udump\dsdata_ora_504.trc:
ORA-00600: internal error code, arguments: [723], [20664], [20664], [memory leak], [], [], [], []

通过alert日志可以知道,数据库shutdown immediate的时候报ORA-600[723]

分析trace文件

…………
EXTENT 147 addr=062ACCBC
  Chunk  62accc4 sz=     1252    free      "               "
  Chunk  62ad1a8 sz=     2060    freeable  "qesmmaLogInitia"
  Chunk  62ad9b4 sz=     2060    freeable  "qesmmaLogInitia"
  Chunk  62ae1c0 sz=     2060    freeable  "qesmmaLogInitia"
  Chunk  62ae9cc sz=     2060    freeable  "qesmmaLogInitia"
…………
EXTENT 153 addr=04232414
  Chunk  423241c sz=     4476    perm      "perm           "  alo=2868
  Chunk  4233598 sz=    18516    free      "               "
  Chunk  4237dec sz=     2060    freeable  "qesmmaLogInitia"
  Chunk  42385f8 sz=     2060    freeable  "qesmmaLogInitia"
  Chunk  4238e04 sz=     2060    freeable  "qesmmaLogInitia"
  Chunk  4239610 sz=     2060    freeable  "qesmmaLogInitia"
  Chunk  4239e1c sz=     2060    freeable  "qesmmaLogInitia"
…………
--查询发现没有释放的内容都是在qesmmaLogInitia部分

*** 2012-06-05 12:16:43.000
ksedmp: internal or fatal error
ORA-00600: internal error code, arguments: [723], [20664], [20664], [memory leak], [], [], [], []
Current SQL information unavailable - no SGA.
----- Call Stack Trace -----
calling              call     entry                argument values in hex      
location             type     point                (? means dubious value)     
-------------------- -------- -------------------- ----------------------------
_ksedmp+147          CALLrel  _ksedst+0            
_ksfdmp.108+e        CALLrel  _ksedmp+0            3
_kgeriv+89           CALLreg  00000000             217190 3
_kgesiv+4e           CALLrel  _kgeriv+0            217190 0 2D3 3 418FC2C
_ksesic3+3b          CALLrel  _kgesiv+0            217190 0 2D3 3 418FC2C 2D3 3
                                                   418FC2C
__VInfreq__ksmdpg+e  CALLrel  _ksesic3+0           2D3 0 50B8 0 50B8 1 B 26A3F28
f                                                  
_opidcl+1db          CALLrel  _ksmdpg+0            
_opidrv+3bf          CALLrel  _opidcl+0            21D328 0
_sou2o+19            CALLrel  _opidrv+0            
_opimai+150          CALLrel  _sou2o+0             418FE20 32 0 0
_BackgroundThreadSt  CALLrel  _opimai+0            
art@4+164                                          
77E6482C             CALLreg  00000000             
 
--------------------- Binary Stack Dump ---------------------

通过查询MOS发现[ID 242260.1]上的Stack Trace比较匹配.上面说到通过sql来直接修改pga_aggregate_target导致,查找alert日志,果然发现:

Mon May 21 15:18:33 2012
ALTER SYSTEM SET pga_aggregate_target='1048576000' SCOPE=MEMORY;
Mon May 21 15:18:33 2012
ALTER SYSTEM SET pga_aggregate_target='1048576000' SCOPE=SPFILE;

现在基本上可以确定引起整个ORA-600[723]的原因是:用户直接修改pga_aggregate_target参数,然后关闭数据库引起Bug:2975617导致

处理建议
Don’t alter the pga_aggregate_target dynamically Change it in init.ora file
针对本库,再次开启数据库应该处于正常状态(spfile已经修改),无需继续关注该问题.