#
# MDEV 33431: Latching order violation reported fil_system.sys_space.latch and ibuf_pessimistic_insert_mutex
#
--source include/have_innodb.inc
--source include/have_debug.inc
--source include/have_debug_sync.inc

SET @saved_change_buffering = @@GLOBAL.innodb_change_buffering;
SET @saved_file_per_table = @@GLOBAL.innodb_file_per_table;
SET @saved_change_buffering_debug = @@GLOBAL.innodb_change_buffering_debug;

SET GLOBAL innodb_change_buffering = NONE;
SET GLOBAL innodb_file_per_table = OFF;

let $loop=2;
while ($loop)
{
  eval CREATE TABLE t$loop(c1 INT AUTO_INCREMENT PRIMARY KEY,c2 CHAR(100))ENGINE=InnoDB;
  eval CREATE INDEX i1 ON t$loop (c2);

  eval INSERT INTO t$loop(c2) VALUES('mariadb');
  eval INSERT INTO t$loop(c2) SELECT c2 FROM t$loop;
  eval INSERT INTO t$loop(c2) SELECT c2 FROM t$loop;
  eval INSERT INTO t$loop(c2) SELECT c2 FROM t$loop;
  eval INSERT INTO t$loop(c2) SELECT c2 FROM t$loop;
  eval INSERT INTO t$loop(c2) SELECT c2 FROM t$loop;

  dec $loop;
}

SET GLOBAL innodb_change_buffering = all;
SET GLOBAL innodb_change_buffering_debug = 1;

SET DEBUG_DBUG='+d,ibuf_force_remove_free_page';
let $loop=2;

while ($loop)
{
  eval INSERT INTO t$loop(c2) SELECT c2 FROM t$loop IGNORE INDEX (i1) LIMIT 4;
  dec $loop;
}
SET DEBUG_DBUG='-d,ibuf_force_remove_free_page';

SET GLOBAL innodb_change_buffering_debug = @saved_change_buffering_debug;
SET GLOBAL innodb_change_buffering = @saved_change_buffering;

let $loop=2;
while ($loop)
{
  eval DROP TABLE t$loop;
  dec $loop;
}

SET GLOBAL innodb_file_per_table = @saved_file_per_table;