MDEV-6590: InnoDB recover ends in signal 11

Analysis: When database is migrated from 5.5 or earlier and
database needs crash recovery, there is possibility that
SYS_DATAFILES system table does not exists, but
crash recovery in function dict_check_tablespaces_and_store_max_id()
assumes that SYS_DATAFILES exists.

Fix: If SYS_DATAFILES does not exists, create it before
we end up to function dict_check_tablespaces_and_store_max_id()
on crash recovery.

storage/innobase/srv/srv0start.cc

@@ -1522,6 +1522,7 @@ innobase_start_or_create_for_mysql(void)
 	char		logfilename[10000];
 	char*		logfile0	= NULL;
 	size_t		dirnamelen;
+	bool		sys_datafiles_created = false;
 
 	if (srv_force_recovery > SRV_FORCE_NO_TRX_UNDO) {
 		srv_read_only_mode = true;
@@ -2448,6 +2449,15 @@ innobase_start_or_create_for_mysql(void)
 				dict_check = DICT_CHECK_NONE_LOADED;
 			}
 
+			/* Create the SYS_TABLESPACES and SYS_DATAFILES system table */
+			err = dict_create_or_check_sys_tablespace();
+			if (err != DB_SUCCESS) {
+				return(err);
+			}
+
+			sys_datafiles_created = true;
+
+			/* This function assumes that SYS_DATAFILES exists */
 			dict_check_tablespaces_and_store_max_id(dict_check);
 		}
 
@@ -2652,11 +2662,14 @@ innobase_start_or_create_for_mysql(void)
 		return(err);
 	}
 
-	/* Create the SYS_TABLESPACES system table */
+	/* Create the SYS_TABLESPACES and SYS_DATAFILES system tables if we
+	have not done that already on crash recovery. */
+	if (sys_datafiles_created == false) {
 		err = dict_create_or_check_sys_tablespace();
 		if (err != DB_SUCCESS) {
 			return(err);
 		}
+	}
 
 	srv_is_being_started = FALSE;
 

storage/xtradb/srv/srv0start.cc

@@ -1566,6 +1566,7 @@ innobase_start_or_create_for_mysql(void)
 	char		logfilename[10000];
 	char*		logfile0	= NULL;
 	size_t		dirnamelen;
+	bool		sys_datafiles_created = false;
 
 	if (srv_force_recovery > SRV_FORCE_NO_TRX_UNDO) {
 		srv_read_only_mode = true;
@@ -2515,6 +2516,15 @@ innobase_start_or_create_for_mysql(void)
 				dict_check = DICT_CHECK_NONE_LOADED;
 			}
 
+			/* Create the SYS_TABLESPACES and SYS_DATAFILES system table */
+			err = dict_create_or_check_sys_tablespace();
+			if (err != DB_SUCCESS) {
+				return(err);
+			}
+
+			sys_datafiles_created = true;
+
+			/* This function assumes that SYS_DATAFILES exists */
 			dict_check_tablespaces_and_store_max_id(dict_check);
 		}
 
@@ -2727,11 +2737,14 @@ innobase_start_or_create_for_mysql(void)
 		return(err);
 	}
 
-	/* Create the SYS_TABLESPACES system table */
+	/* Create the SYS_TABLESPACES and SYS_DATAFILES system tables if we
+	have not done that already on crash recovery. */
+	if (sys_datafiles_created == false) {
 		err = dict_create_or_check_sys_tablespace();
 		if (err != DB_SUCCESS) {
 			return(err);
 		}
+	}
 
 	srv_is_being_started = FALSE;