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# # Bug#14007109 RECURSIVE ACQ OF BLOCK LOCK IN S MODE, STATS UPDATE ASRT !RW_LOCK_OWN(LOCK, 352) # -- source include/have_innodb.inc # The assertion only fails in debug versions, so no need to test in non-debug -- source include/have_debug.inc CREATE TABLE bug14007109 ( a VARCHAR(512), PRIMARY KEY (a) ) ENGINE=INNODB STATS_PERSISTENT=1; BEGIN; -- disable_query_log # As of the time this test is added, 854 pages do not trigger the assert, # while 855 do. We use a bigger number here just in case. What is needed # is to have a btree with 3 levels, where the level in the middle contains # two (or more) pages. The persistent stats code crawls that level twice # in the same mtr: # dict_stats_analyze_index() # start mtr # dict_stats_analyze_index_level(mtr) # traverse the level (leaves the last page in the middle level S-latched) # dict_stats_analyze_index_for_n_prefix(mtr) # traverse the level (would try to S-latch the last page) # commit mtr let $i=900; while ($i) { eval INSERT INTO bug14007109 VALUES (REPEAT(1000+$i, 128)); dec $i; } -- enable_query_log COMMIT; # We get a (debug) assertion failure here if the bug exists ANALYZE TABLE bug14007109; DROP TABLE bug14007109;