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man/systemd.service: Improve OOMPolicy documentation (#39212)

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Taylan Kammer
2025-10-10 15:50:56 +02:00
committed by GitHub
parent e06b9a1d52
commit 705cb712ae
1 changed files with 7 additions and 5 deletions
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12
man/systemd.service.xml
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@@ -1271,11 +1271,13 @@
<para>This setting takes one of <constant>continue</constant>, <constant>stop</constant> or
<constant>kill</constant>. If set to <constant>continue</constant> and a process in the unit is
killed by the OOM killer, this is logged but the unit continues running. If set to
<constant>stop</constant> the event is logged but the unit is terminated cleanly by the service
manager. If set to <constant>kill</constant> and one of the unit's processes is killed by the OOM
killer the kernel is instructed to kill all remaining processes of the unit too, by setting the
<filename>memory.oom.group</filename> attribute to <constant>1</constant>; also see kernel
page <ulink url="https://docs.kernel.org/admin-guide/cgroup-v2.html">Control Group v2</ulink>.
<constant>stop</constant> the event is logged and the unit's processes are terminated cleanly by the
service manager. If set to <constant>kill</constant> and one of the unit's processes is killed by the
OOM killer the kernel is instructed to kill all remaining processes of the unit too, by setting the
<filename>memory.oom.group</filename> attribute to <constant>1</constant>; also see kernel page
<ulink url="https://docs.kernel.org/admin-guide/cgroup-v2.html">Control Group v2</ulink>. In case of
both <constant>stop</constant> and <constant>kill</constant>, the service ultimately ends up in the
<constant>oom-kill</constant> failed state after which <varname>Restart=</varname> may apply.
</para>
<para>Defaults to the setting <varname>DefaultOOMPolicy=</varname> in