作者：惜分飞

惜分飞 — Wed, 06 Jun 2012 05:22:04 +0000

Hdr: 2975617 9.2.0.3.0 RDBMS 9.2.0.3.0 SQL EXECUTION PRODID-5 PORTID-100 ORA-600
Abstract: ORA-600 [723] WHEN PGA_AGGREGATE_TARGET IS SET AT A SESSION LEVEL
 
*** 05/23/03 11:48 am ***
TAR:
----
 
PROBLEM:
--------
Oracle 9.2.0.3
 
ORA-600 [723] on shutdown when PGA_AGGREGATE_TARGET is set at the session 
level to a higher amount than the level in the init.ora.
 
PGA_AGGREGATE_TARGET = 83886080 is set in the init.ora.
 
DIAGNOSTIC ANALYSIS:
--------------------
 
NAME                                 TYPE                             VALUE
------------------------------------ -------------------------------- --------
bitmap_merge_area_size                integer                          1048576
create_bitmap_area_size              integer                          8388608
hash_area_size                       integer                          0
sort_area_retained_size              integer                          0
sort_area_size                       integer                          0
 
Change:
ALTER SYSTEM SET pga_aggregate_target='94371840' SCOPE=MEMORY;
ALTER SYSTEM SET pga_aggregate_target='94371840' SCOPE=SPFILE;
 
Then shutdown immediate results in the following:
ORA-600: internal error code, arguments: [723], [10332], [10332],  [memory 
leak], [], [], [], []
 
Also tried:
 
disk_asynch_io=FALSE
 
 
WORKAROUND:
-----------
As long as he does not change at the session level, no memory leak on 
shutdown.
 
Ct does not change PGA_AGGREGATE_TARGET very often.
 
RELATED BUGS:
-------------
Stact trace similar to 2789432.
 
REPRODUCIBILITY:
----------------
Reproduces at customer site consistently.
 
TEST CASE:
----------
none.
 
STACK TRACE:
------------
Call stack is: _ksedmp _ksfdmp.108 _kgeriv _kgesiv _ksesic3 __VInfreq__ksmdpg 
f _opidcl _opidrv _sou2o.

作者：惜分飞

惜分飞 — Wed, 06 Jun 2012 05:20:01 +0000

Symptom(s)
~~~~~~~~~~
- ORA-00600: internal error  code, arguments: [723], [10332], [10332],
[memory leak], [], [], [], []

Stack Trace:
   ksesic3 ksmdpg opidcl opidrv sou2o

- Low setting of the parameter PGA_AGGREGATE_TARGET

- Memory being leaked  is "kopolal dvoid", i.e. some code is allocating this 
type of memory but it fails to release it. When the process terminates, we
detect that the memory was allocated but never freed and signal a leak.


Change(s)
~~~~~~~~~~
Shutdown after changing the pga_aggregate_target value at the session level.

Cause
~~~~~~~
This is Bug:2975617
Abstract: ORA-600 [723] WHEN PGA_AGGREGATE_TARGET IS SET AT A SESSION LEVEL



Fix
~~~~
The bug 2975617 is fixed in Oracle release 10g and above.

Workaround: 
 Don't alter the pga_aggregate_target dynamically
 Change it in init.ora file

《动态修改PGA_AGGREGATE_TARGET 导致ORA-600[723]》的评论

作者：惜分飞

作者：惜分飞