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Problem IT21811
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Status: Closed |
FEDERATION AND DBMS_SQL MAY RECEIVE SIGSEGV AT SQLEUCTRUSTEDLVLINIT
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| product: |
DB2 FOR LUW / DB2FORLUW / B10 - DB2 |
| Problem description: |
An associated trap file has stack trace backs as below.
-----
sqleUCtrustedLvlInit
sqlriFedOneTimeInitRtn
sqlriFedInvokeInvoker
sqlqg_Call_FMP_Thread
sqlqgDeleteServer
sqlqgDeleteWrapper
sqlqgApplicationTerminationv
sqle_term_app_dj_cb
sqlrr_appl_free_appl_cbs
sqlrr_appl_term
sqeApplication
sqlesrspWrp
sqleUCagentConnectReset
----
There is a timing hole which may lead a sigsegv and crash.
It may be occurred where the system calls DBMS_SQL.* routines
and federated procedures.
There are two potential workarounds.
- It should not happen by avoiding to call DBMS_SQL
routines and federated procedures same timing.
- It should not happen if creating a DARA wrapper with
DB2_FENCE='Y'
and use federated procedures with it only. And also avoiding
to call DBMS_SQL.* routines with this wrapper. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* Db2 Version 11.1 *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to Db2 Version 11.1 Mod 2 Fix Pack 2. *
**************************************************************** |
| Local Fix: |
|
| Solution |
|
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner : IT18043
follow-up : |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 04.08.2017
10.10.2017
10.10.2017 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
