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| author | Annamalai Gurusami <annamalai.gurusami@oracle.com> | 2012-02-27 17:23:56 +0530 |
|---|---|---|
| committer | Annamalai Gurusami <annamalai.gurusami@oracle.com> | 2012-02-27 17:23:56 +0530 |
| commit | c1615df32cada80e09ab67cb0324b7ae225ffaf2 (patch) | |
| tree | 2242d51a1a366421c842ae8566fc5423676bb2d6 /storage/innobase/ut | |
| parent | a33079f85495f09366672879645fe47933dac711 (diff) | |
| download | mariadb-git-c1615df32cada80e09ab67cb0324b7ae225ffaf2.tar.gz | |
Bug#13635833: MULTIPLE CRASHES IN FOREIGN KEY CODE WITH CONCURRENT DDL/DML
There are two threads. In one thread, dml operation is going on
involving cascaded update operation. In another thread, alter
table add foreign key constraint is happening. Under these
circumstances, it is possible for the dml thread to access a
dict_foreign_t object that has been freed by the ddl thread.
The debug sync test case provides the sequence of operations.
Without fix, the test case will crash the server (because of
newly added assert). With fix, the alter table stmt will return
an error message.
rb:947
approved by Jimmy Yang
Diffstat (limited to 'storage/innobase/ut')
| -rw-r--r-- | storage/innobase/ut/ut0ut.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/storage/innobase/ut/ut0ut.c b/storage/innobase/ut/ut0ut.c index f6dfb3ba0b3..117a777cb98 100644 --- a/storage/innobase/ut/ut0ut.c +++ b/storage/innobase/ut/ut0ut.c @@ -1,6 +1,6 @@ /***************************************************************************** -Copyright (c) 2011, Oracle Corpn. All Rights Reserved. +Copyright (c) 2011, 2012, Oracle and/or its affiliates. All Rights Reserved. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software @@ -11,8 +11,8 @@ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with -this program; if not, write to the Free Software Foundation, Inc., 59 Temple -Place, Suite 330, Boston, MA 02111-1307 USA +this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA *****************************************************************************/ @@ -718,6 +718,8 @@ ut_strerr( return("Undo record too big"); case DB_END_OF_INDEX: return("End of index"); + case DB_TABLE_IN_FK_CHECK: + return("Table is being used in foreign key check"); /* do not add default: in order to produce a warning if new code is added to the enum but not added here */ } |