Some code for double faults post

src/interrupts/mod.rs

@@ -93,6 +93,7 @@ lazy_static! {
         idt.set_handler(0, handler!(divide_by_zero_handler));
         idt.set_handler(3, handler!(breakpoint_handler));
         idt.set_handler(6, handler!(invalid_opcode_handler));
+        idt.set_handler(8, handler_with_error_code!(double_fault_handler));
         idt.set_handler(14, handler_with_error_code!(page_fault_handler));
 
         idt
@@ -150,3 +151,8 @@ extern "C" fn page_fault_handler(stack_frame: &ExceptionStackFrame, error_code:
              stack_frame);
     loop {}
 }
+
+extern "C" fn double_fault_handler(stack_frame: &ExceptionStackFrame, _error_code: u64) {
+    println!("\nEXCEPTION: DOUBLE FAULT\n{:#?}", stack_frame);
+    loop {}
+}

src/lib.rs

@@ -56,8 +56,23 @@ pub extern "C" fn rust_main(multiboot_information_address: usize) {
     // initialize our IDT
     interrupts::init();
 
-    // trigger a breakpoint exception
+    stack_overflow();
-    unsafe { int!(3) };
+    // trigger a debug exception
+    unsafe { int!(1) };
+
+    fn divide_by_zero() {
+        unsafe { asm!("mov dx, 0; div dx" ::: "ax", "dx" : "volatile", "intel") }
+    }
+
+    fn int_overflow() {
+        unsafe { asm!("mov al, 0xf0; add al, 0x10; into" ::: "ax", "dx" : "volatile", "intel") }
+    }
+
+    fn stack_overflow() {
+        let _large_array = [1; 100000];
+    }
+
+    int_overflow();
 
     println!("It did not crash!");
     loop {}