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DB2 - Problembeschreibung

Problem IC70577 Status: Geschlossen

DB2 CLP(DB2BP) CAN TRAP WITH SEGV OR CONSUME CPU WITH NESTED SEGV
CONDITIONS

Produkt:
DB2 FOR LUW / DB2FORLUW / 950 - DB2
Problembeschreibung:
DB2 CLP(db2bp) process can trap with SEGV or consume CPU with 
nested SEGV conditions. 
 
Ensure DFT_MON_STMT = ON. 
 
1) db2pd -db <db> -appl to get the CoorPid. 
2) db2trc on -p <CoorPid-from-#1> -debug 
DB2.SQLR.sqlrr_stmt_exe_start.exit -suspend 
 
Session 1: 
3) db2 -f <the big SQL> 
 
Session 2: 
4) db2 get snapshot for applications on <db> 
[...] 
Dynamic SQL statement text: 
DB21017E  The Command Line Processor encountered a system error 
with the 
front-end process output queue. Reason code = -2029060033. 
 
 
Possible Stack: 
 
2878:    /db2/db2iwp/sqllib/bin/db2bp 
 
--------------------------------  lwpid : 1701541 
------------------------------- 
 
 0: c00000001827c0f0 : 
_Z13pdLogInternalmjmjmmmmPvmP11__va_list__() + 0x44e0 
(/db2/db2iwp/fp7_sb23796/lib64/libdb2.so) 
 1: c0000000184de6f0 : pdLogSysRC() + 0xd0 
(/db2/db2iwp/fp7_sb23796/lib64/libdb2.so) 
 2: c000000018f1df50 : _Z21sqloLogAndMapQueErrorjjim() + 0x70 
(/db2/db2iwp/fp7_sb23796/lib64/libdb2.so) 
 3: c0000000183aac30 : sqlocque() + 0x250 
(/db2/db2iwp/fp7_sb23796/lib64/libdb2.so) 
 4: 400000000011f350 : _Z15clp_bp_exitlistj() + 0xf0 
(/db2/db2iwp/sqllib/bin/db2bp) 
 5: 400000000011f870 : clp_bp_sigterm() + 0x170 
(/db2/db2iwp/sqllib/bin/db2bp) 
 5: e0000001208828e0 : [ sendsig : signal 11 : SIGSEGV ] 
 7: c000000018282b40 : sqlogmblkEx() + 0x15b0 
(/db2/db2iwp/fp7_sb23796/lib64/libdb2.so) 
 8: c00000001829b170 : 
_Z15sqlowqueWrapperP13SQLO_QUE_DESCP12SQLO_MSG_HDRib() + 0xe0 
(/db2/db2iwp/fp7_sb23796/lib64/libdb2.so) 
 9: c000000018266bf0 : sqlowque() + 0x30 
(/db2/db2iwp/fp7_sb23796/lib64/libdb2.so) 
10: 40000000000513a0 : _Z8clp_wqueP12SQLO_MSG_HDR() + 0xc0 
(/db2/db2iwp/sqllib/bin/db2bp) 
11: 40000000001201f0 : _Z16clp_send_msglinei() + 0x190 
(/db2/db2iwp/sqllib/bin/db2bp) 
12: 40000000000f8e90 : 
_Z17clp_stmt_snapshotP14sqlm_collectedP20sqlm_recording_groupPcj 
() 
+ 0x1bf0 (/db2/db2iwp/sqllib/bin/db2bp) 
13: 40000000000d87e0 : _Z18clpbp_exe_sqlmonssv() + 0x22c0 
(/db2/db2iwp/sqllib/bin/db2bp) 
14: 400000000004eb40 : _Z10clp_bp_conv() + 0x6a0 
(/db2/db2iwp/sqllib/bin/db2bp) 
15: 4000000000056d60 : 
_ZN6DasAPI13setOutputArgsER13DasOutputArgs() + 0x2a0 
(/db2/db2iwp/sqllib/bin/db2bp) 
16: c00000000002be30 : main_opd_entry() + 0x50 
(/usr/lib/hpux64/dld.so) 
 
WORKAROUND: 
None
Problem-Zusammenfassung:
**************************************************************** 
* USERS AFFECTED:                                              * 
* All Platforms                                                * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* The DB2 CLP process (db2bp) can trap with SEGV or consume    * 
* CPU with nested SEGV conditions.                             * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 v9.5 Fixpack 7 or higher                      * 
****************************************************************
Local-Fix:
verfügbare FixPacks:
DB2 Version 9.5 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 10 for Linux, UNIX, and Windows

Lösung
First Fixed in DB2 version 9.5 Fixpack 7
Workaround
keiner bekannt / siehe Local-Fix
Kommentar
The DB2 9.7 APAR for this issue is IC70578
Weitere Daten
Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
16.08.2010
25.10.2010
25.01.2011
Problem behoben ab folgender Versionen (IBM BugInfos)
9.5.,
9.5.FP7
Problem behoben lt. FixList in der Version
9.1.0.7 FixList
9.5.0.7 FixList