Don't attempt to wake tasks that aren't blocked.

It's possible for a supervised task to kill and wake its supervising
task then immediately try to wake it again if the supervising task
has joined the supervised. This is the easiest way to prevent that.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/rt/rust_task.cpp b/src/rt/rust_task.cpp
index 680043cc35b..1522fcccb1c 100644
--- a/src/rt/rust_task.cpp
+++ b/src/rt/rust_task.cpp
@@ -420,7 +420,7 @@ rust_task::notify_tasks_waiting_to_join() {
             delete waiting_task;
         } else {
             rust_task *task = waiting_task->referent();
-            if (task->dead() == false) {
+            if (task->blocked() == true) {
                 task->wakeup(this);
             }
         }