vmm: make sure there is a thread in the struct in the dealwithrequest call

src/sys/mm/vmm.c

@@ -640,6 +640,10 @@ bool vmm_allocnowat(void* addr, size_t mmuflags, size_t size){
 
 int vmm_dealwithrequest(void* addr, long error, bool user){
 
+	if(!arch_getcls()->thread) // the fault happened before the scheduler was initialised.
+		return EFAULT;
+		
+
 	if(user && addr > USER_SPACE_END)
 		return EFAULT;