From 3efe54169e1bcaf63c304480d5fbf111136b0899 Mon Sep 17 00:00:00 2001
From: Philipp Oppermann <dev@phil-opp.com>
Date: Tue, 18 Apr 2017 18:13:05 +0200
Subject: [PATCH] Provoke a stack overflow, which still causes a boot loop

---
 src/lib.rs | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index 3e9be37..403c9f4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -58,10 +58,13 @@ pub extern "C" fn rust_main(multiboot_information_address: usize) {
     // invoke a breakpoint exception
     x86_64::instructions::interrupts::int3();
 
-    // trigger a page fault
-    unsafe {
-        *(0xdeadbeaf as *mut u64) = 42;
-    };
+    fn stack_overflow() {
+        stack_overflow(); // for each recursion, the return address is pushed
+    }
+
+    // trigger a stack overflow
+    stack_overflow();
+
 
     println!("It did not crash!");
     loop {}