MDEV-20310: Make InnoDB crash tests Valgrind-friendly

Use DEBUG_SYNC to hang the execution at the interesting point, and then kill and restart the server externally. This will work also with Valgrind. DBUG_SUICIDE() causes Valgrind to hang, and it could also cause uninteresting reports about memory leaks. While we are at it, let us clean up innodb.innodb_bulk_create_index_debug so that it will actually test the desired functionality also in future versions (with instant ADD COLUMN and DROP COLUMN) and avoid some unnecessary restarts. We are adding two DEBUG_SYNC points for ALTER TABLE, because there were none that would be executed right before ha_commit_trans().
2025-07-29 05:21:33 +03:00 · 2019-08-13 11:37:01 +03:00
parent 5edc4ea4d9
commit f25e9aa4ba
5 changed files with 200 additions and 148 deletions
--- a/mysql-test/suite/innodb/include/innodb_bulk_create_index_debug.inc
+++ b/mysql-test/suite/innodb/include/innodb_bulk_create_index_debug.inc
@ -4,17 +4,8 @@

 # Not supported in embedded
 -- source include/not_embedded.inc
-
-# This test case needs to crash the server. Needs a debug server.
 -- source include/have_debug.inc
-
-# Don't test this under valgrind, memory leaks will occur.
-- source include/not_valgrind.inc
-
-# Avoid CrashReporter popup on Mac
-- source include/not_crashrep.inc
-
-- source include/have_innodb.inc
+-- source include/have_debug_sync.inc

 # Create Insert Procedure
 DELIMITER |;
@ -62,21 +53,11 @@ CALL populate_t1();

 SELECT COUNT(*) FROM t1;

+--enable_info
 CREATE INDEX idx_title ON t1(title);
+--disable_info

--source include/restart_mysqld.inc
-
-CHECK TABLE t1;
-
-SELECT * FROM t1 WHERE title = 'a10';
-
-SELECT * FROM t1 WHERE title = 'a5000';
-
-SELECT * FROM t1 WHERE title = 'a10000';
-
-SELECT * FROM t1 WHERE title = 'a10010';
-
-DROP TABLE t1;
+RENAME TABLE t1 TO t0;

 -- echo # Test Blob

@ -104,16 +85,32 @@ INSERT INTO t1 VALUES

 SELECT CHAR_LENGTH(b) FROM t1;

-ALTER TABLE t1 DROP COLUMN c;
+--enable_info
+ALTER TABLE t1 DROP COLUMN c, FORCE;
+--disable_info

 --source include/restart_mysqld.inc

-CHECK TABLE t1;
+CHECK TABLE t0,t1;

 SELECT CHAR_LENGTH(b) FROM t1;

 DROP TABLE t1;

+RENAME TABLE t0 to t1;
+
+CHECK TABLE t1;
+
+SELECT * FROM t1 WHERE title = 'a10';
+
+SELECT * FROM t1 WHERE title = 'a5000';
+
+SELECT * FROM t1 WHERE title = 'a10000';
+
+SELECT * FROM t1 WHERE title = 'a10010';
+
+DROP TABLE t1;
+
 # Test Crash Recovery

 if ($row_format != 'COMPRESSED')
@ -140,17 +137,16 @@ if ($row_format == 'COMPRESSED')
 CALL populate_t1();
 -- enable_query_log

-SET debug_dbug='+d,crash_commit_before';
-
-# Write file to make mysql-test-run.pl start up the server again
--exec echo "restart" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
-
--error 2013
+connect (hang,localhost,root);
+SET DEBUG_SYNC='alter_table_inplace_trans_commit SIGNAL hung WAIT_FOR ever';
+send
 CREATE INDEX idx_title ON t1(title);

--enable_reconnect
--source include/wait_until_connected_again.inc
--disable_reconnect
+connection default;
+SET DEBUG_SYNC='now WAIT_FOR hung';
+let $shutdown_timeout=0;
+--source include/restart_mysqld.inc
+disconnect hang;

 SELECT COUNT(*) FROM t1;

@ -194,17 +190,16 @@ INSERT INTO t1 VALUES

 SELECT CHAR_LENGTH(b) FROM t1;

-SET debug_dbug='+d,crash_commit_before';
+connect (hang,localhost,root);
+SET DEBUG_SYNC='alter_table_inplace_trans_commit SIGNAL hung WAIT_FOR ever';
+send
+ALTER TABLE t1 DROP COLUMN c, FORCE;

-# Write file to make mysql-test-run.pl start up the server again
--exec echo "restart" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
-
--error 2013
-ALTER TABLE t1 DROP COLUMN c;
-
--enable_reconnect
--source include/wait_until_connected_again.inc
--disable_reconnect
+connection default;
+SET DEBUG_SYNC='now WAIT_FOR hung';
+--source include/restart_mysqld.inc
+disconnect hang;
+let $shutdown_timeout=60;

 CHECK TABLE t1;

@ -212,10 +207,4 @@ SELECT CHAR_LENGTH(b) FROM t1;

 DROP TABLE t1;

-# Restore global variables
-if ($row_format == 'COMPRESSED')
-{
-  SET GLOBAL innodb_file_per_table=default;
-}
-
 DROP PROCEDURE populate_t1;
--- a/mysql-test/suite/innodb/r/alter_copy.result
+++ b/mysql-test/suite/innodb/r/alter_copy.result
@ -37,7 +37,9 @@ t1	CREATE TABLE `t1` (
  FULLTEXT KEY `b_2` (`b`,`c`)
 ) ENGINE=InnoDB DEFAULT CHARSET=latin1
 ALTER TABLE t1 FORCE, ALGORITHM=COPY;
-SET DEBUG_DBUG='+d,crash_commit_before';
+connect  hang,localhost,root;
+SET DEBUG_SYNC='alter_table_copy_trans_commit SIGNAL hung WAIT_FOR ever';
+# create 32 secondary indexes
 ALTER TABLE t ADD INDEX(b,c,d,a),ADD INDEX(b,c,a,d),ADD INDEX(b,a,c,d),ADD INDEX(b,a,d,c),
 ADD INDEX(b,d,a,c),ADD INDEX(b,d,c,a),ADD INDEX(a,b,c,d),ADD INDEX(a,b,d,c),
 ADD INDEX(a,c,b,d),ADD INDEX(a,c,d,b),ADD INDEX(a,d,b,c),ADD INDEX(a,d,c,b),
@ -47,7 +49,9 @@ ADD INDEX(d,b,a,c),ADD INDEX(d,b,c,a),ADD INDEX(d,c,a,b),ADD INDEX(d,c,b,a),
 ADD INDEX(a,b,c), ADD INDEX(a,c,b), ADD INDEX(a,c,d), ADD INDEX(a,d,c),
 ADD INDEX(a,b,d), ADD INDEX(a,d,b), ADD INDEX(b,c,d), ADD INDEX(b,d,c),
 ALGORITHM=COPY;
-ERROR HY000: Lost connection to MySQL server during query
+connection default;
+SET DEBUG_SYNC='now WAIT_FOR hung';
+disconnect hang;
 #sql-temporary.frm
 #sql-temporary.ibd
 FTS_INDEX_1.ibd
--- a/mysql-test/suite/innodb/r/innodb_bulk_create_index_debug.result
+++ b/mysql-test/suite/innodb/r/innodb_bulk_create_index_debug.result
@ -17,21 +17,9 @@ SELECT COUNT(*) FROM t1;
 COUNT(*)
 10000
 CREATE INDEX idx_title ON t1(title);
-CHECK TABLE t1;
-Table	Op	Msg_type	Msg_text
-test.t1	check	status	OK
-SELECT * FROM t1 WHERE title = 'a10';
-class	id	title
-10	10	a10
-SELECT * FROM t1 WHERE title = 'a5000';
-class	id	title
-5000	5000	a5000
-SELECT * FROM t1 WHERE title = 'a10000';
-class	id	title
-10000	10000	a10000
-SELECT * FROM t1 WHERE title = 'a10010';
-class	id	title
-DROP TABLE t1;
+affected rows: 0
+info: Records: 0  Duplicates: 0  Warnings: 0
+RENAME TABLE t1 TO t0;
 # Test Blob
 CREATE TABLE t1(
 a INT PRIMARY KEY,
@ -48,9 +36,12 @@ CHAR_LENGTH(b)
 20000
 40000
 60000
-ALTER TABLE t1 DROP COLUMN c;
-CHECK TABLE t1;
+ALTER TABLE t1 DROP COLUMN c, FORCE;
+affected rows: 0
+info: Records: 0  Duplicates: 0  Warnings: 0
+CHECK TABLE t0,t1;
 Table	Op	Msg_type	Msg_text
+test.t0	check	status	OK
 test.t1	check	status	OK
 SELECT CHAR_LENGTH(b) FROM t1;
 CHAR_LENGTH(b)
@ -59,14 +50,33 @@ CHAR_LENGTH(b)
 40000
 60000
 DROP TABLE t1;
+RENAME TABLE t0 to t1;
+CHECK TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+SELECT * FROM t1 WHERE title = 'a10';
+class	id	title
+10	10	a10
+SELECT * FROM t1 WHERE title = 'a5000';
+class	id	title
+5000	5000	a5000
+SELECT * FROM t1 WHERE title = 'a10000';
+class	id	title
+10000	10000	a10000
+SELECT * FROM t1 WHERE title = 'a10010';
+class	id	title
+DROP TABLE t1;
 CREATE TABLE t1(
 class   INT,
 id      INT,
 title   VARCHAR(100)
 ) ENGINE=InnoDB ROW_FORMAT=REDUNDANT;
-SET debug_dbug='+d,crash_commit_before';
+connect  hang,localhost,root;
+SET DEBUG_SYNC='alter_table_inplace_trans_commit SIGNAL hung WAIT_FOR ever';
 CREATE INDEX idx_title ON t1(title);
-ERROR HY000: Lost connection to MySQL server during query
+connection default;
+SET DEBUG_SYNC='now WAIT_FOR hung';
+disconnect hang;
 SELECT COUNT(*) FROM t1;
 COUNT(*)
 10000
@ -104,9 +114,12 @@ CHAR_LENGTH(b)
 20000
 40000
 60000
-SET debug_dbug='+d,crash_commit_before';
-ALTER TABLE t1 DROP COLUMN c;
-ERROR HY000: Lost connection to MySQL server during query
+connect  hang,localhost,root;
+SET DEBUG_SYNC='alter_table_inplace_trans_commit SIGNAL hung WAIT_FOR ever';
+ALTER TABLE t1 DROP COLUMN c, FORCE;
+connection default;
+SET DEBUG_SYNC='now WAIT_FOR hung';
+disconnect hang;
 CHECK TABLE t1;
 Table	Op	Msg_type	Msg_text
 test.t1	check	status	OK
@ -137,21 +150,9 @@ SELECT COUNT(*) FROM t1;
 COUNT(*)
 10000
 CREATE INDEX idx_title ON t1(title);
-CHECK TABLE t1;
-Table	Op	Msg_type	Msg_text
-test.t1	check	status	OK
-SELECT * FROM t1 WHERE title = 'a10';
-class	id	title
-10	10	a10
-SELECT * FROM t1 WHERE title = 'a5000';
-class	id	title
-5000	5000	a5000
-SELECT * FROM t1 WHERE title = 'a10000';
-class	id	title
-10000	10000	a10000
-SELECT * FROM t1 WHERE title = 'a10010';
-class	id	title
-DROP TABLE t1;
+affected rows: 0
+info: Records: 0  Duplicates: 0  Warnings: 0
+RENAME TABLE t1 TO t0;
 # Test Blob
 CREATE TABLE t1(
 a INT PRIMARY KEY,
@ -168,9 +169,12 @@ CHAR_LENGTH(b)
 20000
 40000
 60000
-ALTER TABLE t1 DROP COLUMN c;
-CHECK TABLE t1;
+ALTER TABLE t1 DROP COLUMN c, FORCE;
+affected rows: 0
+info: Records: 0  Duplicates: 0  Warnings: 0
+CHECK TABLE t0,t1;
 Table	Op	Msg_type	Msg_text
+test.t0	check	status	OK
 test.t1	check	status	OK
 SELECT CHAR_LENGTH(b) FROM t1;
 CHAR_LENGTH(b)
@ -179,14 +183,33 @@ CHAR_LENGTH(b)
 40000
 60000
 DROP TABLE t1;
+RENAME TABLE t0 to t1;
+CHECK TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+SELECT * FROM t1 WHERE title = 'a10';
+class	id	title
+10	10	a10
+SELECT * FROM t1 WHERE title = 'a5000';
+class	id	title
+5000	5000	a5000
+SELECT * FROM t1 WHERE title = 'a10000';
+class	id	title
+10000	10000	a10000
+SELECT * FROM t1 WHERE title = 'a10010';
+class	id	title
+DROP TABLE t1;
 CREATE TABLE t1(
 class   INT,
 id      INT,
 title   VARCHAR(100)
 ) ENGINE=InnoDB ROW_FORMAT=COMPACT;
-SET debug_dbug='+d,crash_commit_before';
+connect  hang,localhost,root;
+SET DEBUG_SYNC='alter_table_inplace_trans_commit SIGNAL hung WAIT_FOR ever';
 CREATE INDEX idx_title ON t1(title);
-ERROR HY000: Lost connection to MySQL server during query
+connection default;
+SET DEBUG_SYNC='now WAIT_FOR hung';
+disconnect hang;
 SELECT COUNT(*) FROM t1;
 COUNT(*)
 10000
@ -224,9 +247,12 @@ CHAR_LENGTH(b)
 20000
 40000
 60000
-SET debug_dbug='+d,crash_commit_before';
-ALTER TABLE t1 DROP COLUMN c;
-ERROR HY000: Lost connection to MySQL server during query
+connect  hang,localhost,root;
+SET DEBUG_SYNC='alter_table_inplace_trans_commit SIGNAL hung WAIT_FOR ever';
+ALTER TABLE t1 DROP COLUMN c, FORCE;
+connection default;
+SET DEBUG_SYNC='now WAIT_FOR hung';
+disconnect hang;
 CHECK TABLE t1;
 Table	Op	Msg_type	Msg_text
 test.t1	check	status	OK
@ -257,21 +283,9 @@ SELECT COUNT(*) FROM t1;
 COUNT(*)
 10000
 CREATE INDEX idx_title ON t1(title);
-CHECK TABLE t1;
-Table	Op	Msg_type	Msg_text
-test.t1	check	status	OK
-SELECT * FROM t1 WHERE title = 'a10';
-class	id	title
-10	10	a10
-SELECT * FROM t1 WHERE title = 'a5000';
-class	id	title
-5000	5000	a5000
-SELECT * FROM t1 WHERE title = 'a10000';
-class	id	title
-10000	10000	a10000
-SELECT * FROM t1 WHERE title = 'a10010';
-class	id	title
-DROP TABLE t1;
+affected rows: 0
+info: Records: 0  Duplicates: 0  Warnings: 0
+RENAME TABLE t1 TO t0;
 # Test Blob
 CREATE TABLE t1(
 a INT PRIMARY KEY,
@ -288,9 +302,12 @@ CHAR_LENGTH(b)
 20000
 40000
 60000
-ALTER TABLE t1 DROP COLUMN c;
-CHECK TABLE t1;
+ALTER TABLE t1 DROP COLUMN c, FORCE;
+affected rows: 0
+info: Records: 0  Duplicates: 0  Warnings: 0
+CHECK TABLE t0,t1;
 Table	Op	Msg_type	Msg_text
+test.t0	check	status	OK
 test.t1	check	status	OK
 SELECT CHAR_LENGTH(b) FROM t1;
 CHAR_LENGTH(b)
@ -299,14 +316,33 @@ CHAR_LENGTH(b)
 40000
 60000
 DROP TABLE t1;
+RENAME TABLE t0 to t1;
+CHECK TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+SELECT * FROM t1 WHERE title = 'a10';
+class	id	title
+10	10	a10
+SELECT * FROM t1 WHERE title = 'a5000';
+class	id	title
+5000	5000	a5000
+SELECT * FROM t1 WHERE title = 'a10000';
+class	id	title
+10000	10000	a10000
+SELECT * FROM t1 WHERE title = 'a10010';
+class	id	title
+DROP TABLE t1;
 CREATE TABLE t1(
 class   INT,
 id      INT,
 title   VARCHAR(100)
 ) ENGINE=InnoDB ROW_FORMAT=DYNAMIC;
-SET debug_dbug='+d,crash_commit_before';
+connect  hang,localhost,root;
+SET DEBUG_SYNC='alter_table_inplace_trans_commit SIGNAL hung WAIT_FOR ever';
 CREATE INDEX idx_title ON t1(title);
-ERROR HY000: Lost connection to MySQL server during query
+connection default;
+SET DEBUG_SYNC='now WAIT_FOR hung';
+disconnect hang;
 SELECT COUNT(*) FROM t1;
 COUNT(*)
 10000
@ -344,9 +380,12 @@ CHAR_LENGTH(b)
 20000
 40000
 60000
-SET debug_dbug='+d,crash_commit_before';
-ALTER TABLE t1 DROP COLUMN c;
-ERROR HY000: Lost connection to MySQL server during query
+connect  hang,localhost,root;
+SET DEBUG_SYNC='alter_table_inplace_trans_commit SIGNAL hung WAIT_FOR ever';
+ALTER TABLE t1 DROP COLUMN c, FORCE;
+connection default;
+SET DEBUG_SYNC='now WAIT_FOR hung';
+disconnect hang;
 CHECK TABLE t1;
 Table	Op	Msg_type	Msg_text
 test.t1	check	status	OK
@ -378,21 +417,9 @@ SELECT COUNT(*) FROM t1;
 COUNT(*)
 10000
 CREATE INDEX idx_title ON t1(title);
-CHECK TABLE t1;
-Table	Op	Msg_type	Msg_text
-test.t1	check	status	OK
-SELECT * FROM t1 WHERE title = 'a10';
-class	id	title
-10	10	a10
-SELECT * FROM t1 WHERE title = 'a5000';
-class	id	title
-5000	5000	a5000
-SELECT * FROM t1 WHERE title = 'a10000';
-class	id	title
-10000	10000	a10000
-SELECT * FROM t1 WHERE title = 'a10010';
-class	id	title
-DROP TABLE t1;
+affected rows: 0
+info: Records: 0  Duplicates: 0  Warnings: 0
+RENAME TABLE t1 TO t0;
 # Test Blob
 SET GLOBAL innodb_file_per_table=1;
 CREATE TABLE t1(
@ -410,9 +437,12 @@ CHAR_LENGTH(b)
 20000
 40000
 60000
-ALTER TABLE t1 DROP COLUMN c;
-CHECK TABLE t1;
+ALTER TABLE t1 DROP COLUMN c, FORCE;
+affected rows: 0
+info: Records: 0  Duplicates: 0  Warnings: 0
+CHECK TABLE t0,t1;
 Table	Op	Msg_type	Msg_text
+test.t0	check	status	OK
 test.t1	check	status	OK
 SELECT CHAR_LENGTH(b) FROM t1;
 CHAR_LENGTH(b)
@ -421,15 +451,34 @@ CHAR_LENGTH(b)
 40000
 60000
 DROP TABLE t1;
+RENAME TABLE t0 to t1;
+CHECK TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+SELECT * FROM t1 WHERE title = 'a10';
+class	id	title
+10	10	a10
+SELECT * FROM t1 WHERE title = 'a5000';
+class	id	title
+5000	5000	a5000
+SELECT * FROM t1 WHERE title = 'a10000';
+class	id	title
+10000	10000	a10000
+SELECT * FROM t1 WHERE title = 'a10010';
+class	id	title
+DROP TABLE t1;
 SET GLOBAL innodb_file_per_table=1;
 CREATE TABLE t1(
 class   INT,
 id      INT,
 title   VARCHAR(100)
 ) ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=4;
-SET debug_dbug='+d,crash_commit_before';
+connect  hang,localhost,root;
+SET DEBUG_SYNC='alter_table_inplace_trans_commit SIGNAL hung WAIT_FOR ever';
 CREATE INDEX idx_title ON t1(title);
-ERROR HY000: Lost connection to MySQL server during query
+connection default;
+SET DEBUG_SYNC='now WAIT_FOR hung';
+disconnect hang;
 SELECT COUNT(*) FROM t1;
 COUNT(*)
 10000
@ -468,9 +517,12 @@ CHAR_LENGTH(b)
 20000
 40000
 60000
-SET debug_dbug='+d,crash_commit_before';
-ALTER TABLE t1 DROP COLUMN c;
-ERROR HY000: Lost connection to MySQL server during query
+connect  hang,localhost,root;
+SET DEBUG_SYNC='alter_table_inplace_trans_commit SIGNAL hung WAIT_FOR ever';
+ALTER TABLE t1 DROP COLUMN c, FORCE;
+connection default;
+SET DEBUG_SYNC='now WAIT_FOR hung';
+disconnect hang;
 CHECK TABLE t1;
 Table	Op	Msg_type	Msg_text
 test.t1	check	status	OK
@ -481,5 +533,4 @@ CHAR_LENGTH(b)
 40000
 60000
 DROP TABLE t1;
-SET GLOBAL innodb_file_per_table=default;
 DROP PROCEDURE populate_t1;
--- a/mysql-test/suite/innodb/t/alter_copy.test
+++ b/mysql-test/suite/innodb/t/alter_copy.test
@ -37,11 +37,11 @@ SELECT * FROM t1 WHERE MATCH(b,c) AGAINST ('column');
 SHOW CREATE TABLE t1;
 ALTER TABLE t1 FORCE, ALGORITHM=COPY;

-# crash right after the last write_row(), before the first commit of ALTER TABLE
--source include/expect_crash.inc
+# kill right after the last write_row(), before the first commit of ALTER TABLE
+connect (hang,localhost,root);

-SET DEBUG_DBUG='+d,crash_commit_before';
--error 2013
+SET DEBUG_SYNC='alter_table_copy_trans_commit SIGNAL hung WAIT_FOR ever';
+send
 # create 32 secondary indexes
 ALTER TABLE t ADD INDEX(b,c,d,a),ADD INDEX(b,c,a,d),ADD INDEX(b,a,c,d),ADD INDEX(b,a,d,c),
              ADD INDEX(b,d,a,c),ADD INDEX(b,d,c,a),ADD INDEX(a,b,c,d),ADD INDEX(a,b,d,c),
@ -53,8 +53,13 @@ ALTER TABLE t ADD INDEX(b,c,d,a),ADD INDEX(b,c,a,d),ADD INDEX(b,a,c,d),ADD INDEX
              ADD INDEX(a,b,d), ADD INDEX(a,d,b), ADD INDEX(b,c,d), ADD INDEX(b,d,c),
 	      ALGORITHM=COPY;

+connection default;
+SET DEBUG_SYNC='now WAIT_FOR hung';
+let $shutdown_timeout=0;
 --let $restart_parameters= --innodb-force-recovery=3
--source include/start_mysqld.inc
+--source include/restart_mysqld.inc
+disconnect hang;
+let $shutdown_timeout=;
 let $datadir=`select @@datadir`;
 --replace_regex /#sql-[0-9a-f_]*/#sql-temporary/ /FTS_[0-9a-f]*_[0-9a-f]*/FTS/
 --list_files $datadir/test
--- a/sql/sql_table.cc
+++ b/sql/sql_table.cc
@ -9788,6 +9788,7 @@ end_temporary:
 	      (ulong) (copied + deleted), (ulong) deleted,
 	      (ulong) thd->get_stmt_da()->current_statement_warn_count());
  my_ok(thd, copied + deleted, 0L, alter_ctx.tmp_name);
+  DEBUG_SYNC(thd, "alter_table_inplace_trans_commit");
  DBUG_RETURN(false);

 err_new_table_cleanup:
@ -9889,9 +9890,11 @@ bool mysql_trans_commit_alter_copy_data(THD *thd)
  uint save_unsafe_rollback_flags;
  DBUG_ENTER("mysql_trans_commit_alter_copy_data");

-  /* Save flags as transcommit_implicit_are_deleting_them */
+  /* Save flags as trans_commit_implicit are deleting them */
  save_unsafe_rollback_flags= thd->transaction.stmt.m_unsafe_rollback_flags;

+  DEBUG_SYNC(thd, "alter_table_copy_trans_commit");
+
  if (ha_enable_transaction(thd, TRUE))
    DBUG_RETURN(TRUE);