From d3dc7406cf43bdf3f9aa328e580a8710170813a6 Mon Sep 17 00:00:00 2001
From: Andrew Noyes <andrew@weaselab.dev>
Date: Thu, 16 May 2024 22:31:05 -0700
Subject: [PATCH] Fix gc memory leak

---
 VersionedMap.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/VersionedMap.cpp b/VersionedMap.cpp
index 68b5692..4c03cd0 100644
--- a/VersionedMap.cpp
+++ b/VersionedMap.cpp
@@ -5,6 +5,7 @@
 
 #include <assert.h>
 #include <atomic>
+#include <cstdint>
 #include <inttypes.h>
 #include <optional>
 #include <stdio.h>
@@ -338,6 +339,20 @@ struct MemManager {
     }
     next = max + 1;
 
+    for (int i = next; i < firstUnaddressable; ++i) {
+      if (base[i].entry != nullptr) {
+#if DEBUG_VERBOSE
+        if (debugVerboseEnabled) {
+          printf(
+              "Collecting %u while collecting right page-unaligned surplus\n",
+              i);
+        }
+#endif
+        base[i].entry->delref();
+        base[i].entry = nullptr;
+      }
+    }
+
     // Rebuild free list and delref entries
     freeList = 0;
     reachable.iterateAbsentApproxBackwards(