From 08f9603f85a63f408c502610f39adec5bc455c17 Mon Sep 17 00:00:00 2001
From: Marcel Kottmann <marcel.kottmann@sinnerschrader.com>
Date: Tue, 14 Jan 2020 08:38:34 +0100
Subject: [PATCH] fix: fixes issue #1476 after introduced again by version
 2.0.2

---
 lib/monitor/run.js | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/lib/monitor/run.js b/lib/monitor/run.js
index dce4638a..610f5d77 100644
--- a/lib/monitor/run.js
+++ b/lib/monitor/run.js
@@ -321,7 +321,7 @@ function run(options) {
 function waitForSubProcesses(pid, callback) {
   debug('checking ps tree for pids of ' + pid);
   psTree(pid, (err, pids) => {
-    if (!pids.length) {
+    if (err || !pids.length) {
       return callback();
     }
 
@@ -365,13 +365,11 @@ function kill(child, signal, callback) {
       // the sub processes need to be killed from smallest to largest
       debug('sending kill signal to ' + pids.join(', '));
 
-      child.kill(signal);
-
       pids.sort().forEach(pid => exec(`kill -${sig} ${pid}`, noop));
 
       waitForSubProcesses(child.pid, () => {
         // finally kill the main user process
-        exec(`kill -${sig} ${child.pid}`, callback);
+        child.kill(signal);
       });
 
     });