From 2329f0cda018e310cf9c4756151447fd0e0ff44d Mon Sep 17 00:00:00 2001
From: Dave Horton <daveh@beachdognet.com>
Date: Tue, 1 Feb 2022 11:00:12 -0500
Subject: [PATCH] child tasks must remove reference to parent on kill or else
 entangled parent-child tasks will not be gc'ed

---
 lib/tasks/task.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/tasks/task.js b/lib/tasks/task.js
index 7a99493d..6c2434f9 100644
--- a/lib/tasks/task.js
+++ b/lib/tasks/task.js
@@ -62,7 +62,9 @@ class Task extends Emitter {
   kill(cs) {
     if (this.cs && !this.cs.isConfirmCallSession) this.logger.debug(`${this.name} is being killed`);
     this._killInProgress = true;
-    // no-op
+
+    /* remove reference to parent task or else entangled parent-child tasks will not be gc'ed */
+    setImmediate(() => this.parentTask = null);
   }
 
   /**