From 6b8b4bb986d0cb5de6eb60829354e6ebc3693016 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Thu, 20 Aug 2015 03:38:22 +0200
Subject: [PATCH] potential fix for #6515 - stall/crash during route deletion

introduced in 4.1-78-g11e371c
---
 libs/ardour/session.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libs/ardour/session.cc b/libs/ardour/session.cc
index 6a8a54939d..6968f9ba28 100644
--- a/libs/ardour/session.cc
+++ b/libs/ardour/session.cc
@@ -3420,6 +3420,7 @@ Session::remove_routes (boost::shared_ptr<RouteList> routes_to_remove)
 #ifdef USE_TRACKS_CODE_FEATURES
 		reconnect_existing_routes(true, false);
 #else
+		routes.flush (); // maybe unsafe, see below.
 		resort_routes ();
 #endif