fixed scheduler in vault. insert borderline reference

thread/thread.cc

@@ -3,7 +3,7 @@
 #include "thread.h"
 #include "../debug/output.h"
 #include "../arch/context.h"
-
+#include "interrupt/guard.h"
 // Alias to simplify stuff
 typedef void (*kickoff_t)(void*);
 
@@ -17,12 +17,12 @@ Thread::Thread(void* tos) {
 }
 
 #include "../thread/scheduler.h"
-extern Scheduler sch;
 void Thread::resume(Thread* next) {
-	Context *from = &sch.active()->context;
+	Guarded g = Guard::enter();
+	Context *from = &g.vault().sch.active()->context;
 	Context *to = &next->context;
 
-	sch.dispatcher.lifePointer[Core::getID()] = next;
+	g.vault().sch.dispatcher.lifePointer[Core::getID()] = next;
 	DBG << "from: " << hex << from << endl;
 	DBG << "to  : " << hex << to << endl << flush;
 	context_switch(to, from);

thread/thread.h

@@ -16,7 +16,6 @@
 #include "../arch/context.h"
 #include "../object/queue.h"
 #include "../types.h"
-#include "../interrupt/guard.h"
 /*! \brief The Thread is an object used by the scheduler.
  *  \ingroup thread
  */