5.5.44-37.3

storage/xtradb/buf/buf0buf.c

 /*****************************************************************************
 
-Copyright (c) 1995, 2014, Oracle and/or its affiliates. All Rights Reserved.
+Copyright (c) 1995, 2015, Oracle and/or its affiliates. All Rights Reserved.
 Copyright (c) 2008, Google Inc.
 
 Portions of this file contain modifications contributed and copyrighted by
@@ -1666,6 +1666,10 @@ buf_pool_watch_set(
 
 	/* buf_pool->watch is protected by zip_mutex for now */
 	mutex_enter(&buf_pool->zip_mutex);
+
+	/* The maximum number of purge threads should never exceed
+	BUF_POOL_WATCH_SIZE. So there is no way for purge thread
+	instance to hold a watch when setting another watch. */
 	for (i = 0; i < BUF_POOL_WATCH_SIZE; i++) {
 		bpage = &buf_pool->watch[i];
 

storage/xtradb/dict/dict0dict.c

 /*****************************************************************************
 
-Copyright (c) 1996, 2014, Oracle and/or its affiliates. All Rights Reserved.
+Copyright (c) 1996, 2015, Oracle and/or its affiliates. All Rights Reserved.
 
 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free Software
@@ -2664,7 +2664,7 @@ dict_foreign_remove_from_cache(
 
 		rbt = foreign->referenced_table->referenced_rbt;
 
-		if (rbt != NULL) {
+		if (rbt != NULL && foreign->id != NULL) {
 			const ib_rbt_node_t*	node
 				= rbt_lookup(rbt, foreign->id);
 			dict_foreign_t*	val = *(dict_foreign_t**) node->value;
@@ -2683,7 +2683,7 @@ dict_foreign_remove_from_cache(
 			       foreign);
 		rbt = foreign->foreign_table->foreign_rbt;
 
-		if (rbt != NULL) {
+		if (rbt != NULL && foreign->id != NULL) {
 			const ib_rbt_node_t*	node
 				= rbt_lookup(rbt, foreign->id);
 			dict_foreign_t*	val = *(dict_foreign_t**) node->value;

storage/xtradb/handler/ha_innodb.cc

 /*****************************************************************************
 
-Copyright (c) 2000, 2014, Oracle and/or its affiliates. All Rights Reserved.
+Copyright (c) 2000, 2015, Oracle and/or its affiliates. All Rights Reserved.
 Copyright (c) 2008, 2009 Google Inc.
 Copyright (c) 2009, Percona Inc.
 
@@ -8934,6 +8934,13 @@ ha_innobase::estimate_rows_upper_bound(void)
 	estimate = 2 * local_data_file_length /
 					 dict_index_calc_min_rec_len(index);
 
+        /* Set num_rows less than MERGEBUFF to simulate the case where we do
+        not have enough space to merge the externally sorted file blocks. */
+        DBUG_EXECUTE_IF("set_num_rows_lt_MERGEBUFF",
+                        estimate = 2;
+                        DBUG_SET("-d,set_num_rows_lt_MERGEBUFF");
+                       );
+
 	prebuilt->trx->op_info = (char*)"";
 
 	DBUG_RETURN((ha_rows) estimate);
@@ -9218,17 +9225,6 @@ ha_innobase::info_low(
 			prebuilt->trx->op_info = "returning various info to MySQL";
 		}
 
-		my_snprintf(path, sizeof(path), "%s/%s%s",
-				mysql_data_home, ib_table->name, reg_ext);
-
-		unpack_filename(path,path);
-
-		/* Note that we do not know the access time of the table,
-		nor the CHECK TABLE time, nor the UPDATE or INSERT time. */
-
-		if (os_file_get_status(path,&stat_info)) {
-			stats.create_time = (ulong) stat_info.ctime;
-		}
 	}
 
 	if (flag & HA_STATUS_VARIABLE) {
@@ -9425,6 +9421,20 @@ ha_innobase::info_low(
 		}
 
 		dict_table_stats_unlock(ib_table, RW_S_LATCH);
+
+		my_snprintf(path, sizeof(path), "%s/%s%s",
+			    mysql_data_home,
+			    table->s->normalized_path.str,
+			    reg_ext);
+
+		unpack_filename(path,path);
+
+		/* Note that we do not know the access time of the table,
+		nor the CHECK TABLE time, nor the UPDATE or INSERT time. */
+
+		if (os_file_get_status(path,&stat_info)) {
+			stats.create_time = (ulong) stat_info.ctime;
+		}
 	}
 
 	if (srv_force_recovery >= SRV_FORCE_NO_IBUF_MERGE) {

storage/xtradb/include/univ.i

@@ -64,7 +64,7 @@ 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 37.2
+#define PERCONA_INNODB_VERSION 37.3
 #endif
 
 #define INNODB_VERSION_STR	MYSQL_SERVER_VERSION

storage/xtradb/srv/srv0start.c

 /*****************************************************************************
 
-Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved.
+Copyright (c) 1996, 2015, Oracle and/or its affiliates. All rights reserved.
 Copyright (c) 2008, Google Inc.
 Copyright (c) 2009, Percona Inc.
 
@@ -2466,9 +2466,9 @@ innobase_shutdown_for_mysql(void)
 
 	ibuf_close();
 	log_shutdown();
-	lock_sys_close();
 	trx_sys_file_format_close();
 	trx_sys_close();
+	lock_sys_close();
 
 	mutex_free(&srv_monitor_file_mutex);
 	mutex_free(&srv_dict_tmpfile_mutex);

storage/xtradb/sync/sync0arr.c

 /*****************************************************************************
 
-Copyright (c) 1995, 2011, Oracle and/or its affiliates. All Rights Reserved.
+Copyright (c) 1995, 2015, Oracle and/or its affiliates. All Rights Reserved.
 Copyright (c) 2008, Google Inc.
 
 Portions of this file contain modifications contributed and copyrighted by
@@ -1025,8 +1025,9 @@ sync_array_output_info(
 	ulint		i;
 
 	fprintf(file,
-		"OS WAIT ARRAY INFO: reservation count %ld, signal count %ld\n",
-						(long) arr->res_count, (long) arr->sg_count);
+		"OS WAIT ARRAY INFO: reservation count " ULINTPF
+		", signal count " ULINTPF "\n",
+		arr->res_count, arr->sg_count);
 	i = 0;
 	count = 0;
 

storage/xtradb/trx/trx0trx.c

@@ -769,9 +769,9 @@ trx_lists_init_at_db_start(void)
 								" anyway.\n");
 
 							trx->state = TRX_ACTIVE;
-							trx_reserve_descriptor(
-								trx);
 						}
+
+						trx_reserve_descriptor(trx);
 					} else {
 						trx->state
 							= TRX_COMMITTED_IN_MEMORY;