test/TEST-31-OOMPOLICY/testsuite.sh

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