Test: allocate all frames

src/lib.rs

@@ -57,6 +57,13 @@ pub extern fn rust_main(multiboot_information_address: usize) {
     let mut frame_allocator = memory::AreaFrameAllocator::new(kernel_start as usize,
         kernel_end as usize, multiboot_start, multiboot_end, memory_map_tag.memory_areas());
 
+    for i in 0.. {
+        if let None = frame_allocator.allocate_frame() {
+            println!("allocated {} frames", i);
+            break;
+        }
+    }
+
     loop{}
 }