relocate stack

kernel/thread/thread.h

@@ -34,7 +34,6 @@ class Thread {
 	void* start;
 
 
-	four_lvl_paging_t* paging_tree;
 
 	friend class Queue<Thread>;
 	friend class Semaphore;
@@ -75,7 +74,10 @@ class Thread {
 		void* isr;
 	} StackPointer;
 	void* operator new  ( size_t count )noexcept;
-	pagetable_t* subtable;
+
+	four_lvl_paging_t* paging_tree;
+	pagetable_t* appcode_table;
+	pagetable_t* appstack_table;
 
 	/*! \brief Unique thread id */
 	const int id;