XtraDB 5.5.40-36.1

storage/xtradb/buf/buf0buf.c

@@ -4028,6 +4028,7 @@ corrupt:
 					      " because of"
 					      " a corrupt database page.\n",
 					      stderr);
+
 					ut_error;
 				}
 			}

storage/xtradb/dict/dict0dict.c

@@ -1130,6 +1130,11 @@ dict_table_rename_in_cache(
 		/* The id will be changed.  So remove old one */
 		rbt_delete(foreign->foreign_table->foreign_rbt, foreign->id);
 
+		if (foreign->referenced_table) {
+			rbt_delete(foreign->referenced_table->referenced_rbt,
+				   foreign->id);
+		}
+
 		if (ut_strlen(foreign->foreign_table_name)
 		    < ut_strlen(table->name)) {
 			/* Allocate a longer name buffer;
@@ -1280,6 +1285,11 @@ dict_table_rename_in_cache(
 		rbt_insert(foreign->foreign_table->foreign_rbt,
 			   foreign->id, &foreign);
 
+		if (foreign->referenced_table) {
+			rbt_insert(foreign->referenced_table->referenced_rbt,
+				   foreign->id, &foreign);
+		}
+
 		foreign = UT_LIST_GET_NEXT(foreign_list, foreign);
 	}
 
@@ -5910,6 +5920,11 @@ dict_find_table_by_space(
 
 	ut_ad(space_id > 0);
 
+	if (dict_sys == NULL) {
+		/* This could happen when it's in redo processing. */
+		return(NULL);
+	}
+
 	table = UT_LIST_GET_FIRST(dict_sys->table_LRU);
 	num_item =  UT_LIST_GET_LEN(dict_sys->table_LRU);
 

storage/xtradb/include/univ.i

@@ -64,10 +64,10 @@ component, i.e. we show M.N.P as M.N */
 	(INNODB_VERSION_MAJOR << 8 | INNODB_VERSION_MINOR)
 
 #ifndef PERCONA_INNODB_VERSION
-#define PERCONA_INNODB_VERSION 36.0
+#define PERCONA_INNODB_VERSION 36.1
 #endif
 
-#define INNODB_VERSION_STR	"5.5.39-MariaDB-" IB_TO_STR(PERCONA_INNODB_VERSION)
+#define INNODB_VERSION_STR	"5.5.40-MariaDB-" IB_TO_STR(PERCONA_INNODB_VERSION)
 
 #define REFMAN "http://dev.mysql.com/doc/refman/"	\
 	IB_TO_STR(MYSQL_MAJOR_VERSION) "."		\

storage/xtradb/row/row0ins.c

@@ -1714,7 +1714,7 @@ row_ins_scan_sec_index_for_duplicate(
 	do {
 		const rec_t*		rec	= btr_pcur_get_rec(&pcur);
 		const buf_block_t*	block	= btr_pcur_get_block(&pcur);
-		ulint			lock_type;
+		const ulint		lock_type = LOCK_ORDINARY;
 
 		if (page_rec_is_infimum(rec)) {
 
@@ -1724,16 +1724,6 @@ row_ins_scan_sec_index_for_duplicate(
 		offsets = rec_get_offsets(rec, index, offsets,
 					  ULINT_UNDEFINED, &heap);
 
-		/* If the transaction isolation level is no stronger than
-		READ COMMITTED, then avoid gap locks. */
-		if (!page_rec_is_supremum(rec)
-		    && thr_get_trx(thr)->isolation_level
-					<= TRX_ISO_READ_COMMITTED) {
-			lock_type = LOCK_REC_NOT_GAP;
-		} else {
-			lock_type = LOCK_ORDINARY;
-		}
-
 		if (allow_duplicates) {
 
 			/* If the SQL-query will update or replace