fix: start frame allocator after kernel code

src/memory/frame.c

@@ -30,7 +30,8 @@ void *alloc_frame(void)
 int free_frame(void *frame_ptr)
 {
 	struct frame_zone *it = head;
-	while (it && (frame_ptr < it->addr || frame_ptr >= it->addr + it->len))
+	while (it && (frame_ptr < it->addr ||
+	              frame_ptr >= it->addr + it->total_frames * PAGE_SIZE))
 		it = it->next;
 
 	uint32_t index = ((frame_ptr - it->addr) / PAGE_SIZE);