1 files changed, 4 insertions, 1 deletions
diff --git a/sql/log_event.cc b/sql/log_event.cc
index 44376a008f6..c559e8b5b4d 100644
--- a/sql/log_event.cc
+++ b/sql/log_event.cc
@@ -1732,6 +1732,8 @@ bool Log_event::write_header(ulong event_data_length)
     */
 
     log_pos= writer->pos() + data_written;
+    
+    DBUG_EXECUTE_IF("dbug_master_binlog_over_2GB", log_pos += (1ULL <<31););
   }
 
   now= get_time();                               // Query start time
@@ -12313,7 +12315,8 @@ int Table_map_log_event::rewrite_db(const char* new_db, size_t new_len,
   cnt += header_len;
 
   // Write new db name length and new name
-  *ptr++ = new_len;
+  DBUG_ASSERT(new_len < 0xff);
+  *ptr++ = (char)new_len;
   memcpy(ptr, new_db, new_len + 1);
   ptr += new_len + 1;
   cnt += m_dblen + 2;