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#!/usr/bin/env bash
# SPDX-License-Identifier: LGPL-2.1-or-later
set -eux
set -o pipefail
systemd-analyze log-level debug
systemd-analyze log-target console
# Loose checks to ensure the environment has the necessary features for systemd-oomd
[[ -e /proc/pressure ]] || echo "no PSI" >>/skipped
cgroup_type="$(stat -fc %T /sys/fs/cgroup/)"
if [[ "$cgroup_type" != *"cgroup2"* ]] && [[ "$cgroup_type" != *"0x63677270"* ]]; then
echo "no cgroup2" >>/skipped
fi
if [ ! -f /usr/lib/systemd/systemd-oomd ] && [ ! -f /lib/systemd/systemd-oomd ]; then
echo "no oomd" >>/skipped
fi
if [[ -e /skipped ]]; then
exit 0
fi
rm -rf /etc/systemd/system/testsuite-55-testbloat.service.d
# Configure oomd explicitly to avoid conflicts with distro dropins
mkdir -p /etc/systemd/oomd.conf.d/
echo -e "[OOM]\nDefaultMemoryPressureDurationSec=2s" >/etc/systemd/oomd.conf.d/99-oomd-test.conf
mkdir -p /etc/systemd/system/-.slice.d/
echo -e "[Slice]\nManagedOOMSwap=auto" >/etc/systemd/system/-.slice.d/99-oomd-test.conf
mkdir -p /etc/systemd/system/user@.service.d/
echo -e "[Service]\nManagedOOMMemoryPressure=auto\nManagedOOMMemoryPressureLimit=0%" >/etc/systemd/system/user@.service.d/99-oomd-test.conf
mkdir -p /etc/systemd/system/systemd-oomd.service.d/
echo -e "[Service]\nEnvironment=SYSTEMD_LOG_LEVEL=debug" >/etc/systemd/system/systemd-oomd.service.d/debug.conf
systemctl daemon-reload
# enable the service to ensure dbus-org.freedesktop.oom1.service exists
# and D-Bus activation works
systemctl enable systemd-oomd.service
# if oomd is already running for some reasons, then restart it to make sure the above settings to be applied
if systemctl is-active systemd-oomd.service; then
systemctl restart systemd-oomd.service
fi
systemctl start testsuite-55-testchill.service
systemctl start testsuite-55-testbloat.service
# Verify systemd-oomd is monitoring the expected units
# Try to avoid racing the oomctl output check by checking in a loop with a timeout
oomctl_output=$(oomctl)
timeout="$(date -ud "1 minutes" +%s)"
while [[ $(date -u +%s) -le $timeout ]]; do
if grep "/testsuite-55-workload.slice" <<< "$oomctl_output"; then
break
fi
oomctl_output=$(oomctl)
sleep 1
done
grep "/testsuite-55-workload.slice" <<< "$oomctl_output"
grep "20.00%" <<< "$oomctl_output"
grep "Default Memory Pressure Duration: 2s" <<< "$oomctl_output"
systemctl status testsuite-55-testchill.service
# systemd-oomd watches for elevated pressure for 2 seconds before acting.
# It can take time to build up pressure so either wait 2 minutes or for the service to fail.
timeout="$(date -ud "2 minutes" +%s)"
while [[ $(date -u +%s) -le $timeout ]]; do
if ! systemctl status testsuite-55-testbloat.service; then
break
fi
sleep 2
done
# testbloat should be killed and testchill should be fine
if systemctl status testsuite-55-testbloat.service; then exit 42; fi
if ! systemctl status testsuite-55-testchill.service; then exit 24; fi
# Make sure we also work correctly on user units.
systemctl start --machine "testuser@.host" --user testsuite-55-testchill.service
systemctl start --machine "testuser@.host" --user testsuite-55-testbloat.service
# Verify systemd-oomd is monitoring the expected units
# Try to avoid racing the oomctl output check by checking in a loop with a timeout
oomctl_output=$(oomctl)
timeout="$(date -ud "1 minutes" +%s)"
while [[ $(date -u +%s) -le $timeout ]]; do
if grep -E "/user.slice.*/testsuite-55-workload.slice" <<< "$oomctl_output"; then
break
fi
oomctl_output=$(oomctl)
sleep 1
done
grep -E "/user.slice.*/testsuite-55-workload.slice" <<< "$oomctl_output"
grep "20.00%" <<< "$oomctl_output"
grep "Default Memory Pressure Duration: 2s" <<< "$oomctl_output"
systemctl --machine "testuser@.host" --user status testsuite-55-testchill.service
# systemd-oomd watches for elevated pressure for 2 seconds before acting.
# It can take time to build up pressure so either wait 2 minutes or for the service to fail.
timeout="$(date -ud "2 minutes" +%s)"
while [[ $(date -u +%s) -le $timeout ]]; do
if ! systemctl --machine "testuser@.host" --user status testsuite-55-testbloat.service; then
break
fi
sleep 2
done
# testbloat should be killed and testchill should be fine
if systemctl --machine "testuser@.host" --user status testsuite-55-testbloat.service; then exit 42; fi
if ! systemctl --machine "testuser@.host" --user status testsuite-55-testchill.service; then exit 24; fi
# only run this portion of the test if we can set xattrs
if setfattr -n user.xattr_test -v 1 /sys/fs/cgroup/; then
sleep 120 # wait for systemd-oomd kill cool down and elevated memory pressure to come down
mkdir -p /etc/systemd/system/testsuite-55-testbloat.service.d/
echo "[Service]" >/etc/systemd/system/testsuite-55-testbloat.service.d/override.conf
echo "ManagedOOMPreference=avoid" >>/etc/systemd/system/testsuite-55-testbloat.service.d/override.conf
systemctl daemon-reload
systemctl start testsuite-55-testchill.service
systemctl start testsuite-55-testmunch.service
systemctl start testsuite-55-testbloat.service
timeout="$(date -ud "2 minutes" +%s)"
while [[ "$(date -u +%s)" -le "$timeout" ]]; do
if ! systemctl status testsuite-55-testmunch.service; then
break
fi
sleep 2
done
# testmunch should be killed since testbloat had the avoid xattr on it
if ! systemctl status testsuite-55-testbloat.service; then exit 25; fi
if systemctl status testsuite-55-testmunch.service; then exit 43; fi
if ! systemctl status testsuite-55-testchill.service; then exit 24; fi
fi
systemd-analyze log-level info
echo OK >/testok
exit 0
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