IT19853: SIGNAL 11 TRAP AT SQLRA_GET_VAR

DB2 Version 11.1 Mod 2 Fix Pack 2 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod2 Fix Pack2 iFix001 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod2 Fix Pack2 iFix002 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 3 Fix Pack 3 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod3 Fix Pack3 iFix001 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod3 Fix Pack3 iFix002 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod4 Fix Pack4 iFix001 for Linux, UNIX, and Windows

APAR status

• Closed as program error.

Error description

• When some memory constraints happened on the system, one may see
  
  SQLO_NOMEM_APPSHRH errors from the sqlra_load_var function in
  the
  db2diag.log, followed by a trap immediately following in
  sqlra_get_var() with signal
  11.
  
  Sample db2diag.log reported by the trapping EDU:
  
  2017-02-24-15.04.24.490958+000 I59687656E679         LEVEL:
  Error
  PID     : 13912                TID : 140699005609728 PROC :
  db2sysc 0
  INSTANCE: db2inst1             NODE : 000            DB   :
  BLUDB
  APPHDL  : 0-306                APPID:
  *LOCAL.db2inst1.170224143310
  AUTHID  : DB2INST1             HOSTNAME:
  hostname.net
  EDUID   : 104                  EDUNAME: db2agent (BLUDB) 0
  FUNCTION: DB2 UDB, access plan manager,
  sqlra_sqlW_get_dynamic_section, probe:900
  RETCODE : ZRC=0x8B0F0014=-1961951212=SQLO_NOMEM_APPSHRH
            "No memory available in 'Applications Shared Heap'"
            DIA8300C A memory heap error has occurred.
  
  2017-02-24-15.04.24.491694+000 I59688336E1100        LEVEL:
  Error
  PID     : 13912                TID : 140699005609728 PROC :
  db2sysc 0
  INSTANCE: db2inst1             NODE : 000            DB   :
  BLUDB
  APPHDL  : 0-306                APPID:
  *LOCAL.db2inst1.170224143310
  AUTHID  : DB2INST1             HOSTNAME:
  hostname.net
  EDUID   : 104                  EDUNAME: db2agent (BLUDB) 0
  FUNCTION: DB2 UDB, access plan manager, sqlra_load_var,
  probe:200
  MESSAGE : ZRC=0x8B0F0014=-1961951212=SQLO_NOMEM_APPSHRH
            "No memory available in 'Applications Shared Heap'"
            DIA8300C A memory heap error has occurred.
  DATA #1 : SQLCA, PD_DB2_TYPE_SQLCA, 136 bytes
  sqlcaid : SQLCA     sqlcabc: 136   sqlcode: -973   sqlerrml: 18
  sqlerrmc: application shared
  sqlerrp : SQLRA115
  sqlerrd : (1) 0x8B0F0014      (2) 0x00000014      (3) 0x00000000
             (4) 0x0000002A      (5) 0x00000000      (6)
  0x00000000
  sqlwarn : (1)      (2)      (3)      (4)        (5)       (6)
             (7)      (8)      (9)      (10)        (11)
  sqlstate:
  
  stack of the trap would look like
  
  
  0      ossDumpStackTraceInternal
  1      ossDumpStackTraceV98
  2      OSSTrapFile::dumpEx
  3      sqlo_trce
  4      sqloEDUCodeTrapHandler
  5      _IO_ftrylockfile
  6      sqlra_get_var
  7      sqlrr_prepare
  8      sqljs_ddm_prpsqlstt
  9      sqljsParseRdbAccessed
  10      sqljsParse
  11      sqljsSqlam
  12      sqljsDrdaAsInnerDriver
  13      sqljsDrdaAsDriver
  14      sqeAgent::RunEDU
  15      sqzEDUObj::EDUDriver
  16      sqloEDUEntry
  17      start_thread
  18      clone
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * N/A                                                          *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to DB2 11.1 Mod 2 Fix Pack 2 or higher               *
  ****************************************************************
  

Problem conclusion

• First fixed in DB2 11.1 Mod 2 Fix Pack 2
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  DB2 FOR LUW

• Fixed component ID

  DB2FORLUW

Applicable component levels