From f04c23199de312226265ba6aa093910ffd577459 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 28 Apr 2026 06:10:17 +0000
Subject: [PATCH 1/2] Initial plan


From 3414c39bc1ab260e4fc52f973b88205041bddf39 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 28 Apr 2026 06:14:03 +0000
Subject: [PATCH 2/2] Fix race condition in Overlapped tests: add
 GC.KeepAlive(helper) to prevent premature finalization

Agent-Logs-Url: https://github.com/dotnet/runtime/sessions/233433e7-d3f0-411c-a574-0bfd57ff9e9e

Co-authored-by: mangod9 <61718172+mangod9@users.noreply.github.com>
---
 .../System.Threading.Overlapped/tests/OverlappedTests.cs        | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/libraries/System.Threading.Overlapped/tests/OverlappedTests.cs b/src/libraries/System.Threading.Overlapped/tests/OverlappedTests.cs
index 8eb2928e1ece00..0079184706b202 100644
--- a/src/libraries/System.Threading.Overlapped/tests/OverlappedTests.cs
+++ b/src/libraries/System.Threading.Overlapped/tests/OverlappedTests.cs
@@ -160,6 +160,7 @@ public static unsafe void PackPosTest()
             Assert.True(ThreadPool.UnsafeQueueNativeOverlapped(nativeOverlapped));
 
             Assert.True(helper.Wait());
+            GC.KeepAlive(helper);
         }
         finally
         {
@@ -184,6 +185,7 @@ public static unsafe void PackPosTest1()
             Assert.True(ThreadPool.UnsafeQueueNativeOverlapped(nativeOverlapped));
 
             Assert.True(helper.Wait());
+            GC.KeepAlive(helper);
         }
         finally
         {