From 73c73b2a8c9c3a6332942a1146fd18d74616e5b2 Mon Sep 17 00:00:00 2001
From: Ada Christine <adachristine18@gmail.com>
Date: Tue, 20 Apr 2021 00:58:37 +0000
Subject: panic on unhandled fault in anonymous space

---
 kernel/memory.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/kernel/memory.c b/kernel/memory.c
index fcd0f1f..9d44be5 100644
--- a/kernel/memory.c
+++ b/kernel/memory.c
@@ -453,7 +453,12 @@ static struct memory_space *get_memory_space(void *address)
 
 int anonymous_page_handler(uint32_t code, void *address)
 {
-    (void)code;
+    if (code & PAGE_PR)
+    {
+        // there's no reason a protection violation should happen
+        // in anonymous space
+        panic(UNHANDLED_FAULT);
+    }
     kputs("anonymous fault\n");
     // kernel page mappings are built different
     if (address >= (void *)&k_virt_base)
-- 
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