kmain: allocate first 16 pages for stack

src/kernel/kernel.c

@@ -136,8 +136,11 @@ void kmain(unsigned int magic, unsigned int info)
 	printf("test_str: %X, &test_str %X\n", test_str, &test_str);
 	free_page(test_str);
 
-	alloc_page();//TODO: fix this this, because now we MUST allocate a page for checks of successfulness of allocation to pass
-				//the first page is at 0x0 and in check we check by if(!<allocated page>) which returns 0 (false), yeah
+	//reserve first 16 pages (64KB) for the stack whose top address is defined as 0xC0010000 in the boot.asm
+	for(int i = 0; i < 16; i++)
+	{
+		alloc_page();
+	}
 				
 
 	//while(1){}