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man: correct requirements for systemd-oomd.service

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Fixes: #19331
(cherry picked from commit 169be51f94b7017fea1394dcb412d3afdfd7cea5)
(cherry picked from commit 7208e7465b6cb1563cad46f568c78c725790d237)
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Anita Zhang 2021-04-16 00:42:44 -07:00 committed by Zbigniew Jędrzejewski-Szmek
parent 58f2b2bd2e
commit ad0bb9aeeb
1 changed files with 3 additions and 4 deletions
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7
man/systemd-oomd.service.xml
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@ -48,10 +48,9 @@
<title>Setup Information</title>
<para>The system must be running systemd with a full unified cgroup hierarchy for the expected cgroups-v2 features.
Furthermore, resource accounting must be turned on for all units monitored by <command>systemd-oomd</command>.
The easiest way to turn on resource accounting is by ensuring the values for <varname>DefaultCPUAccounting</varname>,
<varname>DefaultIOAccounting</varname>, <varname>DefaultMemoryAccounting</varname>, and
<varname>DefaultTasksAccounting</varname> are set to <constant>true</constant> in
Furthermore, memory accounting must be turned on for all units monitored by <command>systemd-oomd</command>.
The easiest way to turn on memory accounting is by ensuring the value for <varname>DefaultMemoryAccounting=</varname>
is set to <constant>true</constant> in
<citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
<para>You will need a kernel compiled with PSI support. This is available in Linux 4.20 and above.</para>