From 81b80cee65b4e40faa6e2b711db04f2a95962eaa Mon Sep 17 00:00:00 2001
From: Helmut Eller <eller.helmut@gmail.com>
Date: Wed, 12 Nov 2025 13:26:02 +0100
Subject: [PATCH] Set dump_public.start to some place outside of the GC heap

The idea is to reduce the probability for stray pointers on the stack.
pdumper_object_p uses dump_public.start and pdumper_object_p is called
quite frequently, e.g. by xfree.

* src/pdumper.c (pdumper_load): Set dump_public.start to ~0.
---
 src/pdumper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pdumper.c b/src/pdumper.c
index 9f80671f7ea..a55135f99dc 100644
--- a/src/pdumper.c
+++ b/src/pdumper.c
@@ -6258,7 +6258,7 @@ pdumper_load (const char *dump_filename, char *argv0)
 
 #ifdef HAVE_MPS
   /* From now on, pdumper_object_p returns false.  */
-  dump_public.end = dump_public.start;
+  dump_public.end = dump_public.start = ~0;
 #endif
 
   initialized = true;