From a5be14f7cdedb903f4c758ca646ecc5bb41118f8 Mon Sep 17 00:00:00 2001
From: SUTER Frederic <frederic.suter@cc.in2p3.fr>
Date: Sun, 26 Dec 2021 12:35:51 +0100
Subject: [PATCH] partially plug leak. Do not see why one remains :-/

---
 src/s4u/s4u_Activity.cpp    | 4 +++-
 src/simdag/sd_dotloader.cpp | 2 ++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/s4u/s4u_Activity.cpp b/src/s4u/s4u_Activity.cpp
index 8c22f5871e..ace662e160 100644
--- a/src/s4u/s4u_Activity.cpp
+++ b/src/s4u/s4u_Activity.cpp
@@ -76,8 +76,10 @@ Activity* Activity::cancel()
 {
   kernel::actor::simcall([this] {
     XBT_HERE();
-    pimpl_->cancel();
+    if (pimpl_)
+      pimpl_->cancel();
   });
+  release_dependencies();
   complete(State::CANCELED);
   return this;
 }
diff --git a/src/simdag/sd_dotloader.cpp b/src/simdag/sd_dotloader.cpp
index 4a54f7c458..c7494d0ddf 100644
--- a/src/simdag/sd_dotloader.cpp
+++ b/src/simdag/sd_dotloader.cpp
@@ -122,6 +122,8 @@ std::vector<ActivityPtr> create_DAG_from_dot(const std::string& filename)
   if (not check_for_cycle(dag)) {
     std::string base = simgrid::xbt::Path(filename).get_base_name();
     XBT_ERROR("The DOT described in %s is not a DAG. It contains a cycle.", base.c_str());
+    for (const auto& a : dag)
+      a->cancel();
     dag.clear();
   }
 
-- 
2.20.1