|
Problem IC84162
|
Status: Closed |
DB2 MAY TRAP WHEN UNFIXING THE LAST PAGE OF A TEMP TABLE DUE TO A TIMING HOLE ISSUE |
| product: |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 |
| Problem description: |
When dropping a TEMP table, db2 will unfix pages from buffer
pool. There exist an issue where a trap can possibly occur when
the last page of a TEMP table is fixed and an attempt to unfix
the page is made.
The issue can be identified from the stack trace.
<StackTrace>
sqlbufix
sqlbufix
sqldDropTable
sqldDropTable
sqldTableDrop
sqlrl_userTempDrop
sqlrl_userTempCleanup
sqlrr_appl_term
AppStopUsing
</StackTrace> |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* all *
****************************************************************
* PROBLEM DESCRIPTION: *
* When dropping a TEMP table, db2 will unfix pages from buffer *
* *
* pool. There exist a timing hole issue when two unfixers try *
* to *
* unfix the last page of a TEMP table without the page latch *
* *
* protection which in turn causes db2 trap. *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 version 10.1.001 *
**************************************************************** |
| Local Fix: |
|
| available fix packs: |
DB2 Version 10.1 Fix Pack 1 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 2 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 6 for Linux, UNIX, and Windows
|
| Solution |
Included in db2 version 10.1.001 |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 12.06.2012
31.10.2012
31.10.2012 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 10.1.0.1
|
 |
| 10.5.0.1
|
|
