diff --git a/dbug/dbug.c b/dbug/dbug.c
index 9d638c299d3..7f4292d18b1 100644
--- a/dbug/dbug.c
+++ b/dbug/dbug.c
@@ -1826,7 +1826,13 @@ static void DBUGOpenFile(CODE_STATE *cs,
       else
       {
         newfile= !EXISTS(name);
-        if (!(fp= fopen(name, append ? "a+" : "w")))
+        if (!(fp= fopen(name,
+#if defined(MSDOS) || defined(__WIN__)
+		append ? "a+c" : "wc"
+#else
+                append ? "a+" : "w"
+#endif
+		)))
         {
           (void) fprintf(stderr, ERR_OPEN, cs->process, name);
           perror("");
@@ -2231,23 +2237,9 @@ static void dbug_flush(CODE_STATE *cs)
   if (cs->stack->flags & FLUSH_ON_WRITE)
 #endif
   {
-#if defined(MSDOS) || defined(__WIN__)
-    if (cs->stack->out_file != stdout && cs->stack->out_file != stderr)
-    {
-      if (!(freopen(cs->stack->name,"a",cs->stack->out_file)))
-      {
-        (void) fprintf(stderr, ERR_OPEN, cs->process, cs->stack->name);
-        fflush(stderr);
-        cs->stack->out_file= stderr;
-      }
-    }
-    else
-#endif
-    {
-      (void) fflush(cs->stack->out_file);
-      if (cs->stack->delay)
-        (void) Delay(cs->stack->delay);
-    }
+    (void) fflush(cs->stack->out_file);
+    if (cs->stack->delay)
+      (void) Delay(cs->stack->delay);
   }
   if (!cs->locked)
     pthread_mutex_unlock(&THR_LOCK_dbug);
diff --git a/mysql-test/mysql-test-run.pl b/mysql-test/mysql-test-run.pl
index 7b6ddf70d53..08584df44c8 100755
--- a/mysql-test/mysql-test-run.pl
+++ b/mysql-test/mysql-test-run.pl
@@ -1019,12 +1019,14 @@ sub command_line_setup () {
   {
     $opt_testcase_timeout= $default_testcase_timeout;
     $opt_testcase_timeout*= 10 if $opt_valgrind;
+    $opt_testcase_timeout*= 10 if ($opt_debug and $glob_win32);
   }
 
   if ( ! $opt_suite_timeout )
   {
     $opt_suite_timeout= $default_suite_timeout;
     $opt_suite_timeout*= 6 if $opt_valgrind;
+    $opt_suite_timeout*= 6 if ($opt_debug and $glob_win32);
   }
 
   if ( ! $opt_user )