From 0a2f8a5b132b2f978b149b1c5d2e6c8bc5490e73 Mon Sep 17 00:00:00 2001
From: Pablo Tesone <tesonep@gmail.com>
Date: Wed, 5 Jul 2023 13:37:20 +0200
Subject: [PATCH] Adding check to fix when the image is open with an older VM
 that corrupts the remembered set.

---
 smalltalksrc/VMMaker/VMRememberedSet.class.st | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/smalltalksrc/VMMaker/VMRememberedSet.class.st b/smalltalksrc/VMMaker/VMRememberedSet.class.st
index 97e4ff6655..be87ec4963 100644
--- a/smalltalksrc/VMMaker/VMRememberedSet.class.st
+++ b/smalltalksrc/VMMaker/VMRememberedSet.class.st
@@ -164,6 +164,15 @@ VMRememberedSet >> initialize [
 VMRememberedSet >> initializeRememberedSetShouldStartEmpty: shouldStartEmpty [
 	| obj |
 	obj := self objectOop.
+	
+	(manager isInOldSpace: obj) 
+		ifFalse: [ 
+			manager logWarn: 'Remembered Set is in an invalid position %p. Signal of a corrupted root table.' _: obj.
+			shouldStartEmpty 
+				ifTrue: [ 
+					obj := manager nilObject.
+					manager logWarn: 'As it starts empty, we can ignore it' ]]. 
+	
 	obj = manager nilObject
 		ifTrue:
 			[obj := manager allocatePinnedSlots: 1024.