diff --git a/client/mysqltest.c b/client/mysqltest.c
index dc4872dd6a9..e380ffeb339 100644
--- a/client/mysqltest.c
+++ b/client/mysqltest.c
@@ -60,6 +60,11 @@
 # endif
 #endif
 
+/* Use cygwin for --exec and --system before 5.0 */
+#if MYSQL_VERSION_ID < 50000
+#define USE_CYGWIN
+#endif
+
 #define MAX_VAR_NAME_LENGTH    256
 #define MAX_COLUMNS            256
 #define MAX_EMBEDDED_SERVER_ARGS 64
@@ -5355,8 +5360,9 @@ void run_query_stmt(MYSQL *mysql, struct st_command *command,
   /*
     If we got here the statement succeeded and was expected to do so,
     get data. Note that this can still give errors found during execution!
+    Store the result of the query if if will return any fields
   */
-  if (mysql_stmt_store_result(stmt))
+  if (mysql_stmt_field_count(stmt) && mysql_stmt_store_result(stmt))
   {
     handle_error(command, mysql_stmt_errno(stmt),
                  mysql_stmt_error(stmt), mysql_stmt_sqlstate(stmt), ds);
diff --git a/mysql-test/lib/mtr_process.pl b/mysql-test/lib/mtr_process.pl
index f63009cd24c..690ca8313dd 100644
--- a/mysql-test/lib/mtr_process.pl
+++ b/mysql-test/lib/mtr_process.pl
@@ -22,7 +22,7 @@ use Socket;
 use Errno;
 use strict;
 
-use POSIX 'WNOHANG';
+use POSIX qw(WNOHANG SIGHUP);
 
 sub mtr_run ($$$$$$;$);
 sub mtr_spawn ($$$$$$;$);
@@ -139,19 +139,18 @@ sub spawn_impl ($$$$$$$$) {
     {
       if ( $! == $!{EAGAIN} )           # See "perldoc Errno"
       {
-        mtr_debug("Got EAGAIN from fork(), sleep 1 second and redo");
+        mtr_warning("Got EAGAIN from fork(), sleep 1 second and redo");
         sleep(1);
         redo FORK;
       }
-      else
-      {
-        mtr_error("$path ($pid) can't be forked");
-      }
+
+      mtr_error("$path ($pid) can't be forked, error: $!");
+
     }
 
     if ( $pid )
     {
-      spawn_parent_impl($pid,$mode,$path);
+      return spawn_parent_impl($pid,$mode,$path);
     }
     else
     {
@@ -216,8 +215,11 @@ sub spawn_impl ($$$$$$$$) {
       {
         mtr_child_error("failed to execute \"$path\": $!");
       }
+      mtr_error("Should never come here 1!");
     }
+    mtr_error("Should never come here 2!");
   }
+  mtr_error("Should never come here 3!");
 }
 
 
@@ -230,12 +232,21 @@ sub spawn_parent_impl {
   {
     if ( $mode eq 'run' )
     {
-      # Simple run of command, we wait for it to return
+      # Simple run of command, wait blocking for it to return
       my $ret_pid= waitpid($pid,0);
       if ( $ret_pid != $pid )
       {
-        mtr_error("waitpid($pid, 0) returned $ret_pid " .
-		  "when waiting for '$path'");
+	# The "simple" waitpid has failed, print debug info
+	# and try to handle the error
+        mtr_warning("waitpid($pid, 0) returned $ret_pid " .
+		    "when waiting for '$path', error: '$!'");
+	if ( $ret_pid == -1 )
+	{
+	  # waitpid returned -1, that would indicate the process
+	  # no longer exist and waitpid couldn't wait for it.
+	  return 1;
+	}
+	mtr_error("Error handling failed");
       }
 
       return mtr_process_exit_status($?);
@@ -1109,12 +1120,6 @@ sub mtr_kill_processes ($) {
 #
 ##############################################################################
 
-# FIXME something is wrong, we sometimes terminate with "Hangup" written
-# to tty, and no STDERR output telling us why.
-
-# FIXME for some reason, setting HUP to 'IGNORE' will cause exit() to
-# write out "Hangup", and maybe loose some output. We insert a sleep...
-
 sub mtr_exit ($) {
   my $code= shift;
   mtr_timer_stop_all($::glob_timers);
@@ -1126,7 +1131,7 @@ sub mtr_exit ($) {
   # set ourselves as the group leader at startup (with
   # POSIX::setpgrp(0,0)), but then care must be needed to always do
   # proper child process cleanup.
-  kill('HUP', -$$) if !$::glob_win32_perl and $$ == getpgrp();
+  POSIX::kill(SIGHUP, -$$) if !$::glob_win32_perl and $$ == getpgrp();
 
   exit($code);
 }
diff --git a/mysql-test/mysql-test-run.pl b/mysql-test/mysql-test-run.pl
index b1c042fdcde..78218bcbd28 100755
--- a/mysql-test/mysql-test-run.pl
+++ b/mysql-test/mysql-test-run.pl
@@ -2136,6 +2136,16 @@ sub remove_stale_vardir () {
       mtr_verbose("Removing $opt_vardir/");
       rmtree("$opt_vardir/");
     }
+
+    if ( $opt_mem )
+    {
+      # A symlink from var/ to $opt_mem will be set up
+      # remove the $opt_mem dir to assure the symlink
+      # won't point at an old directory
+      mtr_verbose("Removing $opt_mem");
+      rmtree($opt_mem);
+    }
+
   }
   else
   {
diff --git a/mysql-test/r/func_str.result b/mysql-test/r/func_str.result
index e6c323276ea..d6eb1ab06cf 100644
--- a/mysql-test/r/func_str.result
+++ b/mysql-test/r/func_str.result
@@ -2273,4 +2273,18 @@ abcxx
 select lpad('abc', cast(5 as unsigned integer), 'x');
 lpad('abc', cast(5 as unsigned integer), 'x')
 xxabc
+DROP TABLE IF EXISTS t1;
+CREATE TABLE `t1` (
+`id` varchar(20) NOT NULL,
+`tire` tinyint(3) unsigned NOT NULL,
+PRIMARY KEY (`id`)
+);
+INSERT INTO `t1` (`id`, `tire`) VALUES ('A', 0), ('B', 1),('C', 2);
+SELECT REPEAT( '#', tire ) AS A,
+REPEAT( '#', tire % 999 ) AS B, tire FROM `t1`;
+A	B	tire
+		0
+#	#	1
+##	##	2
+DROP TABLE t1;
 End of 5.0 tests
diff --git a/mysql-test/t/func_str.test b/mysql-test/t/func_str.test
index 535af6907ad..ddab3d03454 100644
--- a/mysql-test/t/func_str.test
+++ b/mysql-test/t/func_str.test
@@ -1115,4 +1115,26 @@ select repeat('a', cast(2 as unsigned int));
 select rpad('abc', cast(5 as unsigned integer), 'x');
 select lpad('abc', cast(5 as unsigned integer), 'x');
 
+
+#
+# Bug #25197 :repeat function returns null when using table field directly as count
+#
+
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+
+CREATE TABLE `t1` (
+  `id` varchar(20) NOT NULL,
+  `tire` tinyint(3) unsigned NOT NULL,
+  PRIMARY KEY (`id`)
+);
+
+INSERT INTO `t1` (`id`, `tire`) VALUES ('A', 0), ('B', 1),('C', 2);
+
+SELECT REPEAT( '#', tire ) AS A,
+       REPEAT( '#', tire % 999 ) AS B, tire FROM `t1`;
+
+DROP TABLE t1;
+
 --echo End of 5.0 tests
diff --git a/sql/event_queue.cc b/sql/event_queue.cc
index 068abbe3408..e67eac4125c 100644
--- a/sql/event_queue.cc
+++ b/sql/event_queue.cc
@@ -153,13 +153,6 @@ Event_queue::init_queue(THD *thd, Event_db_repository *db_repo)
     goto err;
   }
 
-  if (sizeof(my_time_t) != sizeof(time_t))
-  {
-    sql_print_error("SCHEDULER: sizeof(my_time_t) != sizeof(time_t) ."
-                    "The scheduler may not work correctly. Stopping");
-    goto err;
-  }
-
   res= load_events_from_db(thd);
   UNLOCK_QUEUE_DATA();
   if (res)
diff --git a/sql/item_strfunc.cc b/sql/item_strfunc.cc
index 78710c2cfeb..4201a303791 100644
--- a/sql/item_strfunc.cc
+++ b/sql/item_strfunc.cc
@@ -2274,8 +2274,10 @@ String *Item_func_repeat::val_str(String *str)
   if (args[0]->null_value || args[1]->null_value)
     goto err;				// string and/or delim are null
   null_value= 0;
-  if ((count <= 0) && !args[1]->unsigned_flag)	// For nicer SQL code
+
+  if (count == 0 || count < 0 && !args[1]->unsigned_flag)
     return &my_empty_string;
+
   /* Assumes that the maximum length of a String is < INT_MAX32. */
   /* Bounds check on count:  If this is triggered, we will error. */
   if ((ulonglong) count > INT_MAX32)