Add a double fault handler

src/interrupts.rs

@@ -4,6 +4,7 @@ lazy_static! {
     static ref IDT: Idt = {
         let mut idt = Idt::new();
         idt.breakpoint.set_handler_fn(breakpoint_handler);
+        idt.double_fault.set_handler_fn(double_fault_handler);
         idt
     };
 }
@@ -17,3 +18,10 @@ extern "x86-interrupt" fn breakpoint_handler(
 {
     println!("EXCEPTION: BREAKPOINT\n{:#?}", stack_frame);
 }
+
+extern "x86-interrupt" fn double_fault_handler(
+    stack_frame: &mut ExceptionStackFrame, _error_code: u64)
+{
+    println!("\nEXCEPTION: DOUBLE FAULT\n{:#?}", stack_frame);
+    loop {}
+}