diff --git a/src/libraries/System.IO.Ports/tests/SerialPort/OpenDevices.cs b/src/libraries/System.IO.Ports/tests/SerialPort/OpenDevices.cs
index 681cbe64aab..7d395bb7023 100644
--- a/src/libraries/System.IO.Ports/tests/SerialPort/OpenDevices.cs
+++ b/src/libraries/System.IO.Ports/tests/SerialPort/OpenDevices.cs
@@ -11,6 +11,7 @@ namespace System.IO.Ports.Tests
 {
     public class OpenDevices : PortsTest
     {
+        [ActiveIssue("Satori: noisy test fails in baseline too")]
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsNotWindowsNanoServer))] // see https://github.com/dotnet/runtime/issues/26199#issuecomment-390338721
         public void OpenDevices01()
         {
diff --git a/src/libraries/System.Runtime.InteropServices/tests/System.Runtime.InteropServices.UnitTests/System/Runtime/InteropServices/HandleCollectorTests.cs b/src/libraries/System.Runtime.InteropServices/tests/System.Runtime.InteropServices.UnitTests/System/Runtime/InteropServices/HandleCollectorTests.cs
index b1de9352514..979867bc1ef 100644
--- a/src/libraries/System.Runtime.InteropServices/tests/System.Runtime.InteropServices.UnitTests/System/Runtime/InteropServices/HandleCollectorTests.cs
+++ b/src/libraries/System.Runtime.InteropServices/tests/System.Runtime.InteropServices.UnitTests/System/Runtime/InteropServices/HandleCollectorTests.cs
@@ -118,7 +118,6 @@ namespace System.Runtime.InteropServices
             Assert.Throws<InvalidOperationException>(() => collector.Add());
         }
 
-        [ActiveIssue("Satori NYI")]  // probably test issue, relies on frequent blocking collections?
         [Fact]
         public static void TestHandleCollector()
         {