# HG changeset patch
# User Gabriele Svelto <gsvelto@mozilla.com>
# Date 1615296141 -3600
#      Tue Mar 09 14:22:21 2021 +0100
# Node ID ffdd8f4ebf2f5a35216a4432b36aed5efee51fe8
# Parent  52587fdeade51491c288fca5a43543a439d4a9c4
__fastfail() about:crashparent

diff --git a/docshell/base/nsAboutRedirector.cpp b/docshell/base/nsAboutRedirector.cpp
--- a/docshell/base/nsAboutRedirector.cpp
+++ b/docshell/base/nsAboutRedirector.cpp
@@ -7,16 +7,17 @@
 #include "nsAboutRedirector.h"
 #include "nsNetUtil.h"
 #include "nsAboutProtocolUtils.h"
 #include "nsBaseChannel.h"
 #include "mozilla/ArrayUtils.h"
 #include "nsIProtocolHandler.h"
 #include "nsXULAppAPI.h"
 #include "mozilla/Preferences.h"
+#include "intrin.h"

 #define ABOUT_CONFIG_ENABLED_PREF "general.aboutConfig.enable"

 NS_IMPL_ISUPPORTS(nsAboutRedirector, nsIAboutModule)

 struct RedirEntry {
   const char* id;
   const char* url;
@@ -28,16 +29,17 @@ class CrashChannel final : public nsBase
   explicit CrashChannel(nsIURI* aURI) { SetURI(aURI); }

   nsresult OpenContentStream(bool async, nsIInputStream** stream,
                              nsIChannel** channel) override {
     nsAutoCString spec;
     mURI->GetSpec(spec);

     if (spec.EqualsASCII("about:crashparent") && XRE_IsParentProcess()) {
+      __fastfail(FAST_FAIL_INCORRECT_STACK);
       MOZ_CRASH("Crash via about:crashparent");
     }

     if (spec.EqualsASCII("about:crashcontent") && XRE_IsContentProcess()) {
       MOZ_CRASH("Crash via about:crashcontent");
     }

     NS_WARNING("Unhandled about:crash* URI or wrong process");