On process exit

Author: jkotalik

src/Hosting/Hosting/src/Internal/ConsoleLifetime.cs

@@ -78,11 +78,21 @@ private void OnApplicationStopping()
 
         private void OnProcessExit(object sender, EventArgs e)
         {
-            ApplicationLifetime.StopApplication();
-            if(!_shutdownBlock.WaitOne(HostOptions.ShutdownTimeout))
+            try
+            {
+                ApplicationLifetime.StopApplication();
+                if(!_shutdownBlock.WaitOne(HostOptions.ShutdownTimeout))
+                {
+                    Logger.LogInformation("Waiting for the host to be disposed. Ensure all 'IHost' instances are wrapped in 'using' blocks.");
+                }
+            }
+            // When hosting with IIS in-process, we detach the Console handle on main thread exit.
+            // Console.WriteLine may throw here as we are logging to console on ProcessExit.
+            // We catch and ignore all exceptions here. Do not log to Console in thie exception handler.
+            catch (Exception)
             {
-                Logger.LogInformation("Waiting for the host to be disposed. Ensure all 'IHost' instances are wrapped in 'using' blocks.");
             }
+        
             _shutdownBlock.WaitOne();
             // On Linux if the shutdown is triggered by SIGTERM then that's signaled with the 143 exit code.
             // Suppress that since we shut down gracefully. https://github.com/aspnet/AspNetCore/issues/6526