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DB2 - Problem description

Problem IC80624 Status: Closed

DB2 INSTANCE MAY TRAP IN SQLPLGETLOCKWAITINFO() WHEN RUNNING APPLICATION
SNAPSHOT

product:
DB2 FOR LUW / DB2FORLUW / 910 - DB2
Problem description:
The DB2 instance may trap (SIGSEGV) in sqlplGetLockWaitInfo() 
function when an application snapshot is obtained and the tpmon 
interface API is used. 
 
This happens only when the application code uses the sqleseti() 
API to set DB2 client information to pass accounting information 
to the DB2 Server. DB2 may corrupt memory on the stack, if the 
string that it passed by the "tpmon_acc_str" element is long 
enough to exceed the allowed internal maximum size (255 byte). 
In addition for this to happen the codepage setting of the 
client and server must be different, so that codepage conversion 
happens internally. 
 
A typical trap file may show the following stack trace: 
 
sqlplGetLockWaitInfo 
sqm_snap_appl 
sqlmonssagnt 
sqlmonssbackend 
sqlesrvr 
sqleMappingFnServer 
sqlerKnownProcedure 
sqlerCallDL 
sqljs_ddm_excsqlstt 
sqljsParseRdbAccessed 
sqljsParse 
...
Problem Summary:
**************************************************************** 
* USERS AFFECTED:                                              * 
* ALL                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Problem Description above.                               * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 Version 9.1 Fix Pack 12.                      * 
****************************************************************
Local Fix:
Solution
First fixed in DB2 Version 9.1 Fix Pack 12.
Workaround
not known / see Local fix
BUG-Tracking
forerunner  : APAR is sysrouted TO one or more of the following: IC80625 IC80626 IC80627 
follow-up : 
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
02.01.2012
02.08.2012
02.08.2012
Problem solved at the following versions (IBM BugInfos)
9.1.FP12
Problem solved according to the fixlist(s) of the following version(s)
9.1.0.12 FixList
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