test/units/testsuite-32.sh

   1 #!/usr/bin/env bash
   2 set -eux
   3 set -o pipefail
   4
   5 # Let's run this test only if the "memory.oom.group" cgroupfs attribute
   6 # exists. This test is a bit too strict, since the "memory.events"/"oom_kill"
   7 # logic has been around since a longer time than "memory.oom.group", but it's
   8 # an easier thing to test for, and also: let's not get confused by older
   9 # kernels where the concept was still new.
  10
  11 if test -f /sys/fs/cgroup/system.slice/testsuite-32.service/memory.oom.group; then
  12     systemd-analyze log-level debug
  13     systemd-analyze log-target console
  14
  15     # Run a service that is guaranteed to be the first candidate for OOM killing
  16     systemd-run --unit=oomtest.service \
  17                 -p Type=exec -p OOMScoreAdjust=1000 -p OOMPolicy=stop -p MemoryAccounting=yes \
  18                 sleep infinity
  19
  20     # Trigger an OOM killer run
  21     echo 1 >/proc/sys/kernel/sysrq
  22     echo f >/proc/sysrq-trigger
  23
  24     while : ; do
  25         STATE="$(systemctl show -P ActiveState oomtest.service)"
  26         [ "$STATE" = "failed" ] && break
  27         sleep .5
  28     done
  29
  30     RESULT="$(systemctl show -P Result oomtest.service)"
  31     test "$RESULT" = "oom-kill"
  32
  33     systemd-analyze log-level info
  34 fi
  35
  36 echo OK >/testok
  37
  38 exit 0