From ff2910a7461dcc386afa5c011f374f9b78037d9b Mon Sep 17 00:00:00 2001
From: Johannes Schauer Marin Rodrigues <josch@mister-muffin.de>
Date: Sat, 8 Jan 2022 08:31:50 +0100
Subject: [PATCH] send SIGHUP to children if tar failed

---
 mmdebstrap | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/mmdebstrap b/mmdebstrap
index 72849a8..eeee653 100755
--- a/mmdebstrap
+++ b/mmdebstrap
@@ -5763,7 +5763,12 @@ sub main() {
         if ($@) {
             # we cannot die here because that would leave the other thread
             # running without a parent
+            # We send SIGHUP to all our processes (including eventually
+            # running tar and this process itself) to reliably tear down
+            # all running child processes. The main process is not affected
+            # because we are ignoring SIGHUP.
             warning "creating tarball failed: $@";
+            kill HUP => -getpgrp();
             $exitstatus = 1;
         }
     } else {