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020b2e41ea
If we add a drop-in for init.scope (e.g.: to set some memory limit), it will be loaded long after the cgroup has already been realized. Do it again when creating the special unit.
153 lines
5.7 KiB
Bash
Executable File
153 lines
5.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# SPDX-License-Identifier: LGPL-2.1-or-later
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set -eux
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set -o pipefail
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systemd-analyze log-level debug
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# Ensure that the init.scope.d drop-in is applied on boot
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test "$(cat /sys/fs/cgroup/init.scope/memory.high)" != "max"
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# Loose checks to ensure the environment has the necessary features for systemd-oomd
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[[ -e /proc/pressure ]] || echo "no PSI" >>/skipped
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cgroup_type="$(stat -fc %T /sys/fs/cgroup/)"
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if [[ "$cgroup_type" != *"cgroup2"* ]] && [[ "$cgroup_type" != *"0x63677270"* ]]; then
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echo "no cgroup2" >>/skipped
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fi
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if [ ! -f /usr/lib/systemd/systemd-oomd ] && [ ! -f /lib/systemd/systemd-oomd ]; then
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echo "no oomd" >>/skipped
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fi
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if [[ -e /skipped ]]; then
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exit 0
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fi
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rm -rf /etc/systemd/system/testsuite-55-testbloat.service.d
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# Configure oomd explicitly to avoid conflicts with distro dropins
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mkdir -p /etc/systemd/oomd.conf.d/
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echo -e "[OOM]\nDefaultMemoryPressureDurationSec=2s" >/etc/systemd/oomd.conf.d/99-oomd-test.conf
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mkdir -p /etc/systemd/system/-.slice.d/
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echo -e "[Slice]\nManagedOOMSwap=auto" >/etc/systemd/system/-.slice.d/99-oomd-test.conf
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mkdir -p /etc/systemd/system/user@.service.d/
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echo -e "[Service]\nManagedOOMMemoryPressure=auto\nManagedOOMMemoryPressureLimit=0%" >/etc/systemd/system/user@.service.d/99-oomd-test.conf
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mkdir -p /etc/systemd/system/systemd-oomd.service.d/
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echo -e "[Service]\nEnvironment=SYSTEMD_LOG_LEVEL=debug" >/etc/systemd/system/systemd-oomd.service.d/debug.conf
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systemctl daemon-reload
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# enable the service to ensure dbus-org.freedesktop.oom1.service exists
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# and D-Bus activation works
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systemctl enable systemd-oomd.service
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# if oomd is already running for some reasons, then restart it to make sure the above settings to be applied
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if systemctl is-active systemd-oomd.service; then
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systemctl restart systemd-oomd.service
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fi
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systemctl start testsuite-55-testchill.service
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systemctl start testsuite-55-testbloat.service
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# Verify systemd-oomd is monitoring the expected units
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# Try to avoid racing the oomctl output check by checking in a loop with a timeout
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oomctl_output=$(oomctl)
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timeout="$(date -ud "1 minutes" +%s)"
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while [[ $(date -u +%s) -le $timeout ]]; do
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if grep "/testsuite-55-workload.slice" <<< "$oomctl_output"; then
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break
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fi
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oomctl_output=$(oomctl)
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sleep 1
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done
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grep "/testsuite-55-workload.slice" <<< "$oomctl_output"
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grep "20.00%" <<< "$oomctl_output"
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grep "Default Memory Pressure Duration: 2s" <<< "$oomctl_output"
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systemctl status testsuite-55-testchill.service
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# systemd-oomd watches for elevated pressure for 2 seconds before acting.
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# It can take time to build up pressure so either wait 2 minutes or for the service to fail.
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timeout="$(date -ud "2 minutes" +%s)"
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while [[ $(date -u +%s) -le $timeout ]]; do
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if ! systemctl status testsuite-55-testbloat.service; then
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break
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fi
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sleep 2
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done
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# testbloat should be killed and testchill should be fine
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if systemctl status testsuite-55-testbloat.service; then exit 42; fi
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if ! systemctl status testsuite-55-testchill.service; then exit 24; fi
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# Make sure we also work correctly on user units.
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systemctl start --machine "testuser@.host" --user testsuite-55-testchill.service
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systemctl start --machine "testuser@.host" --user testsuite-55-testbloat.service
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# Verify systemd-oomd is monitoring the expected units
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# Try to avoid racing the oomctl output check by checking in a loop with a timeout
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oomctl_output=$(oomctl)
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timeout="$(date -ud "1 minutes" +%s)"
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while [[ $(date -u +%s) -le $timeout ]]; do
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if grep -E "/user.slice.*/testsuite-55-workload.slice" <<< "$oomctl_output"; then
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break
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fi
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oomctl_output=$(oomctl)
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sleep 1
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done
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grep -E "/user.slice.*/testsuite-55-workload.slice" <<< "$oomctl_output"
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grep "20.00%" <<< "$oomctl_output"
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grep "Default Memory Pressure Duration: 2s" <<< "$oomctl_output"
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systemctl --machine "testuser@.host" --user status testsuite-55-testchill.service
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# systemd-oomd watches for elevated pressure for 2 seconds before acting.
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# It can take time to build up pressure so either wait 2 minutes or for the service to fail.
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timeout="$(date -ud "2 minutes" +%s)"
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while [[ $(date -u +%s) -le $timeout ]]; do
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if ! systemctl --machine "testuser@.host" --user status testsuite-55-testbloat.service; then
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break
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fi
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sleep 2
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done
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# testbloat should be killed and testchill should be fine
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if systemctl --machine "testuser@.host" --user status testsuite-55-testbloat.service; then exit 42; fi
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if ! systemctl --machine "testuser@.host" --user status testsuite-55-testchill.service; then exit 24; fi
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# only run this portion of the test if we can set xattrs
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if setfattr -n user.xattr_test -v 1 /sys/fs/cgroup/; then
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sleep 120 # wait for systemd-oomd kill cool down and elevated memory pressure to come down
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mkdir -p /etc/systemd/system/testsuite-55-testbloat.service.d/
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echo "[Service]" >/etc/systemd/system/testsuite-55-testbloat.service.d/override.conf
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echo "ManagedOOMPreference=avoid" >>/etc/systemd/system/testsuite-55-testbloat.service.d/override.conf
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systemctl daemon-reload
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systemctl start testsuite-55-testchill.service
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systemctl start testsuite-55-testmunch.service
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systemctl start testsuite-55-testbloat.service
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timeout="$(date -ud "2 minutes" +%s)"
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while [[ "$(date -u +%s)" -le "$timeout" ]]; do
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if ! systemctl status testsuite-55-testmunch.service; then
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break
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fi
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sleep 2
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done
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# testmunch should be killed since testbloat had the avoid xattr on it
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if ! systemctl status testsuite-55-testbloat.service; then exit 25; fi
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if systemctl status testsuite-55-testmunch.service; then exit 43; fi
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if ! systemctl status testsuite-55-testchill.service; then exit 24; fi
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fi
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systemd-analyze log-level info
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echo OK >/testok
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exit 0
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