1 files changed, 36 insertions, 0 deletions
diff --git a/test/units/TEST-32-OOMPOLICY.sh b/test/units/TEST-32-OOMPOLICY.sh
new file mode 100755
index 0000000..046b8b9
--- /dev/null
+++ b/test/units/TEST-32-OOMPOLICY.sh
@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+set -eux
+set -o pipefail
+
+# Let's run this test only if the "memory.oom.group" cgroupfs attribute
+# exists. This test is a bit too strict, since the "memory.events"/"oom_kill"
+# logic has been around since a longer time than "memory.oom.group", but it's
+# an easier thing to test for, and also: let's not get confused by older
+# kernels where the concept was still new.
+
+if test -f /sys/fs/cgroup/system.slice/TEST-32-OOMPOLICY.service/memory.oom.group; then
+    systemd-analyze log-level debug
+
+    # Run a service that is guaranteed to be the first candidate for OOM killing
+    systemd-run --unit=oomtest.service \
+                -p Type=exec -p OOMScoreAdjust=1000 -p OOMPolicy=stop -p MemoryAccounting=yes \
+                sleep infinity
+
+    # Trigger an OOM killer run
+    echo 1 >/proc/sys/kernel/sysrq
+    echo f >/proc/sysrq-trigger
+
+    while : ; do
+        STATE="$(systemctl show -P ActiveState oomtest.service)"
+        [ "$STATE" = "failed" ] && break
+        sleep .5
+    done
+
+    RESULT="$(systemctl show -P Result oomtest.service)"
+    test "$RESULT" = "oom-kill"
+
+    systemd-analyze log-level info
+fi
+
+touch /testok