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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 /mysys | |
| 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 'mysys')
| -rw-r--r-- | mysys/my_handler_errors.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/mysys/my_handler_errors.h b/mysys/my_handler_errors.h index 3533b633960..1c2f02f26cb 100644 --- a/mysys/my_handler_errors.h +++ b/mysys/my_handler_errors.h @@ -1,7 +1,7 @@ #ifndef MYSYS_MY_HANDLER_ERRORS_INCLUDED #define MYSYS_MY_HANDLER_ERRORS_INCLUDED -/* Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved. +/* Copyright (c) 2008, 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 @@ -13,8 +13,8 @@ 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */ /* Errors a handler can give you @@ -83,7 +83,8 @@ static const char *handler_error_messages[]= "Too many active concurrent transactions", "Index column length exceeds limit", "Index corrupted", - "Undo record too big" + "Undo record too big", + "Table is being used in foreign key check" }; extern void my_handler_error_register(void); |