|
Attention: I am only getting the crash on a VALGRIND build
cmake . -DCMAKE_BUILD_TYPE=Debug -DWITH_VALGRIND=YES
See also MDEV-7688, MDEV-7689, MDEV-7690, MDEV-7696 - they all are somewhat similar, probably there are duplicates among them; but effects are different everywhere.
The problem appeared in 5.5 tree with the following revision:
revno: 4255
|
revision-id: sanja@askmonty.org-20140731071110-4uyuza0ykesfxe1b
|
parent: monty@mariadb.org-20140730102752-3ilbpvmbhr2r9a4x
|
committer: sanja@askmonty.org
|
branch nick: work-maria-5.5-MDEV-6441
|
timestamp: Thu 2014-07-31 10:11:10 +0300
|
message:
|
MDEV-6441: memory leak
|
|
mysql_derived_prepare() was executed on the statement memory.
|
Now it is executed on the runtime memory.
|
All bugs induced by this were fixed.
|
|
Stack trace from 5.5 commit 34f37aa0c0aa87cfb6908500e937516ff37ea6f0
|
#2 0x00000000007f0def in handle_fatal_signal (sig=11) at sql/signal_handler.cc:262
|
#3 <signal handler called>
|
#4 0x00000000007083ad in TABLE_LIST::reset_const_table (this=0x7f5fea045f18) at sql/table.cc:6631
|
#5 0x0000000000708404 in TABLE_LIST::reset_const_table (this=0x7f5fea04b418) at sql/table.cc:6638
|
#6 0x00000000005e6bbc in setup_table_map (table=0x7f5fea0e5018, table_list=0x7f5fea04b418, tablenr=0) at sql/sql_base.h:358
|
#7 0x00000000005e0e61 in setup_tables (thd=0x7f5fead18000, context=0x7f5fea088068, from_clause=0x7f5fea0881b0, tables=0x7f5fea04b418, leaves=..., select_insert=false, full_table_list=false) at sql/sql_base.cc:8321
|
#8 0x00000000005e1300 in setup_tables_and_check_access (thd=0x7f5fead18000, context=0x7f5fea088068, from_clause=0x7f5fea0881b0, tables=0x7f5fea04b418, leaves=..., select_insert=false, want_access_first=1, want_access=1, full_table_list=false) at sql/sql_base.cc:8431
|
#9 0x0000000000664861 in JOIN::prepare (this=0x7f5fea04ea18, rref_pointer_array=0x7f5fea0882d8, tables_init=0x7f5fea04b418, wild_num=0, conds_init=0x7f5fea020498, og_num=0, order_init=0x0, skip_order_by=false, group_init=0x0, having_init=0x0, proc_param_init=0x0, select_lex_arg=0x7f5fea088018, unit_arg=0x7f5fea030018) at sql/sql_select.cc:651
|
#10 0x00000000006e7245 in st_select_lex_unit::prepare (this=0x7f5fea030018, thd_arg=0x7f5fead18000, sel_result=0x7f5fea0485d8, additional_options=0) at sql/sql_union.cc:332
|
#11 0x000000000060f1af in mysql_derived_prepare (thd=0x7f5fead18000, lex=0x7f5fea0e0018, derived=0x7f5fea04c018) at sql/sql_derived.cc:657
|
#12 0x000000000060e60f in mysql_handle_single_derived (lex=0x7f5fea0e0018, derived=0x7f5fea04c018, phases=2) at sql/sql_derived.cc:192
|
#13 0x00000000007084b7 in TABLE_LIST::handle_derived (this=0x7f5fea04c018, lex=0x7f5fea0e0018, phases=2) at sql/table.cc:6666
|
#14 0x000000000062adde in st_select_lex::handle_derived (this=0x7f5fea0e07c8, lex=0x7f5fea0e0018, phases=2) at sql/sql_lex.cc:3554
|
#15 0x000000000066476e in JOIN::prepare (this=0x7f5fea04de18, rref_pointer_array=0x7f5fea0e0a88, tables_init=0x7f5fea04c018, wild_num=0, conds_init=0x7f5fea047818, og_num=0, order_init=0x0, skip_order_by=false, group_init=0x0, having_init=0x0, proc_param_init=0x0, select_lex_arg=0x7f5fea0e07c8, unit_arg=0x7f5fea0e00c8) at sql/sql_select.cc:636
|
#16 0x000000000066d531 in mysql_select (thd=0x7f5fead18000, rref_pointer_array=0x7f5fea0e0a88, tables=0x7f5fea04c018, wild_num=0, fields=..., conds=0x7f5fea047818, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2416184064, result=0x7f5fea044098, unit=0x7f5fea0e00c8, select_lex=0x7f5fea0e07c8) at sql/sql_select.cc:3074
|
#17 0x0000000000663e63 in handle_select (thd=0x7f5fead18000, lex=0x7f5fea0e0018, result=0x7f5fea044098, setup_tables_done_option=0) at sql/sql_select.cc:319
|
#18 0x000000000063c293 in execute_sqlcom_select (thd=0x7f5fead18000, all_tables=0x7f5fea04c018) at sql/sql_parse.cc:4689
|
#19 0x000000000063546c in mysql_execute_command (thd=0x7f5fead18000) at sql/sql_parse.cc:2234
|
#20 0x0000000000656b1b in Prepared_statement::execute (this=0x7f5fea0d6280, expanded_query=0x7f5feabb4c50, open_cursor=false) at sql/sql_prepare.cc:3928
|
#21 0x0000000000655c32 in Prepared_statement::execute_loop (this=0x7f5fea0d6280, expanded_query=0x7f5feabb4c50, open_cursor=false, packet=0x0, packet_end=0x0) at sql/sql_prepare.cc:3587
|
#22 0x0000000000653d56 in mysql_sql_stmt_execute (thd=0x7f5fead18000) at sql/sql_prepare.cc:2737
|
#23 0x000000000063549a in mysql_execute_command (thd=0x7f5fead18000) at sql/sql_parse.cc:2244
|
#24 0x000000000063ed98 in mysql_parse (thd=0x7f5fead18000, rawbuf=0x7f5fea01c0d8 "EXECUTE stmt", length=12, parser_state=0x7f5feabb5610) at sql/sql_parse.cc:5909
|
#25 0x00000000006329b3 in dispatch_command (command=COM_QUERY, thd=0x7f5fead18000, packet=0x7f5fead8c001 "EXECUTE stmt", packet_length=12) at sql/sql_parse.cc:1079
|
#26 0x0000000000631b3f in do_command (thd=0x7f5fead18000) at sql/sql_parse.cc:793
|
#27 0x0000000000739b14 in do_handle_one_connection (thd_arg=0x7f5fead18000) at sql/sql_connect.cc:1266
|
#28 0x00000000007395d3 in handle_one_connection (arg=0x7f5fead18000) at sql/sql_connect.cc:1181
|
#29 0x0000000000b836e3 in pfs_spawn_thread (arg=0x7f5feefed760) at storage/perfschema/pfs.cc:1015
|
#30 0x00007f5ff0db0b50 in start_thread (arg=<optimized out>) at pthread_create.c:304
|
#31 0x00007f5fef6be70d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
|
|
Test case
|
SET sql_mode=ONLY_FULL_GROUP_BY;
|
|
CREATE TABLE t1 (a INT, f1 INT, f2 INT, f3 INT, f4 INT);
|
INSERT INTO t1 VALUES (1,10,11,12,13),(8,20,21,22,23);
|
CREATE VIEW v1 AS SELECT * FROM t1;
|
|
CREATE TABLE t2 (b INT);
|
INSERT INTO t2 VALUES (8),(6);
|
|
CREATE TABLE t3 (c INT);
|
INSERT INTO t3 VALUES (12),(22);
|
|
PREPARE stmt FROM "
|
SELECT * FROM ( SELECT t1.* FROM v1 INNER JOIN t1 ON (t1.a = v1.a) WHERE 0 ) AS sq
|
WHERE a NOT IN ( SELECT MAX(b) FROM t1 INNER JOIN ( t2 INNER JOIN t3 ON (c = b) ) ON (c = b) )
|
";
|
|
EXECUTE stmt;
|
EXECUTE stmt;
|
|