1 files changed, 47 insertions, 0 deletions
diff --git a/test/units/testsuite-07.issue-1981.sh b/test/units/testsuite-07.issue-1981.sh
new file mode 100755
index 0000000..6eb802c
--- /dev/null
+++ b/test/units/testsuite-07.issue-1981.sh
@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+set -eux
+set -o pipefail
+
+# Segmentation fault in timer_enter_waiting while masking a unit
+# Issue: https://github.com/systemd/systemd/issues/1981
+
+at_exit() {
+    set +e
+
+    systemctl stop my.timer my.service
+    rm -f /run/systemd/system/my.{service,timer}
+    systemctl daemon-reload
+}
+
+trap at_exit EXIT
+
+mkdir -p /run/systemd/system
+
+cat >/run/systemd/system/my.service <<\EOF
+[Service]
+Type=oneshot
+ExecStartPre=sh -c 'test "$TRIGGER_UNIT" = my.timer'
+ExecStartPre=sh -c 'test -n "$TRIGGER_TIMER_REALTIME_USEC"'
+ExecStartPre=sh -c 'test -n "$TRIGGER_TIMER_MONOTONIC_USEC"'
+ExecStart=/bin/echo Timer runs me
+EOF
+
+cat >/run/systemd/system/my.timer <<EOF
+[Timer]
+OnBootSec=10s
+OnUnitInactiveSec=1h
+EOF
+
+systemctl unmask my.timer
+systemctl start my.timer
+
+mkdir -p /run/systemd/system/my.timer.d/
+cat >/run/systemd/system/my.timer.d/override.conf <<EOF
+[Timer]
+OnBootSec=10s
+OnUnitInactiveSec=1h
+EOF
+
+systemctl daemon-reload
+systemctl mask my.timer