test/units/testsuite-55.sh

   1 #!/usr/bin/env bash
   2 set -ex
   3 set -o pipefail
   4
   5 systemd-analyze log-level debug
   6 systemd-analyze log-target console
   7
   8 # Loose checks to ensure the environment has the necessary features for systemd-oomd
   9 [[ -e /proc/pressure ]] || echo "no PSI" >> /skipped
  10 cgroup_type=$(stat -fc %T /sys/fs/cgroup/)
  11 if [[ "$cgroup_type" != *"cgroup2"* ]] && [[ "$cgroup_type" != *"0x63677270"* ]]; then
  12     echo "no cgroup2" >> /skipped
  13 fi
  14 if [ ! -f /usr/lib/systemd/systemd-oomd ] && [ ! -f /lib/systemd/systemd-oomd ]; then
  15     echo "no oomd" >> /skipped
  16 fi
  17 [[ -e /skipped ]] && exit 0 || true
  18
  19 rm -rf /etc/systemd/system/testsuite-55-testbloat.service.d
  20
  21 echo "DefaultMemoryPressureDurationSec=5s" >> /etc/systemd/oomd.conf
  22
  23 systemctl start testsuite-55-testchill.service
  24 systemctl start testsuite-55-testbloat.service
  25
  26 # Verify systemd-oomd is monitoring the expected units
  27 oomctl | grep "/testsuite-55-workload.slice"
  28 oomctl | grep "1.00%"
  29 oomctl | grep "Default Memory Pressure Duration: 5s"
  30
  31 # systemd-oomd watches for elevated pressure for 5 seconds before acting.
  32 # It can take time to build up pressure so either wait 2 minutes or for the service to fail.
  33 timeout=$(date -ud "2 minutes" +%s)
  34 while [[ $(date -u +%s) -le $timeout ]]; do
  35     if ! systemctl status testsuite-55-testbloat.service; then
  36         break
  37     fi
  38     sleep 5
  39 done
  40
  41 # testbloat should be killed and testchill should be fine
  42 if systemctl status testsuite-55-testbloat.service; then exit 42; fi
  43 if ! systemctl status testsuite-55-testchill.service; then exit 24; fi
  44
  45 # only run this portion of the test if we can set xattrs
  46 if setfattr -n user.xattr_test -v 1 /sys/fs/cgroup/; then
  47     sleep 120 # wait for systemd-oomd kill cool down and elevated memory pressure to come down
  48
  49     mkdir -p /etc/systemd/system/testsuite-55-testbloat.service.d/
  50     echo "[Service]" > /etc/systemd/system/testsuite-55-testbloat.service.d/override.conf
  51     echo "ManagedOOMPreference=avoid" >> /etc/systemd/system/testsuite-55-testbloat.service.d/override.conf
  52
  53     systemctl daemon-reload
  54     systemctl start testsuite-55-testchill.service
  55     systemctl start testsuite-55-testmunch.service
  56     systemctl start testsuite-55-testbloat.service
  57
  58     timeout=$(date -ud "2 minutes" +%s)
  59     while [[ $(date -u +%s) -le $timeout ]]; do
  60         if ! systemctl status testsuite-55-testmunch.service; then
  61             break
  62         fi
  63         sleep 5
  64     done
  65
  66     # testmunch should be killed since testbloat had the avoid xattr on it
  67     if ! systemctl status testsuite-55-testbloat.service; then exit 25; fi
  68     if systemctl status testsuite-55-testmunch.service; then exit 43; fi
  69     if ! systemctl status testsuite-55-testchill.service; then exit 24; fi
  70 fi
  71
  72 systemd-analyze log-level info
  73
  74 echo OK > /testok
  75
  76 exit 0