"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!--
+ SPDX-License-Identifier: LGPL-2.1+
+
This file is part of systemd.
Copyright 2014 Zbigniew Jędrzejewski-Szmek
<refnamediv>
<refname>coredump.conf</refname>
<refname>coredump.conf.d</refname>
- <refpurpose>Coredump storage configuration files</refpurpose>
+ <refpurpose>Core dump storage configuration files</refpurpose>
</refnamediv>
<refsynopsisdiv>
<para>These files configure the behavior of
<citerefentry><refentrytitle>systemd-coredump</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
- a handler for core dumps invoked by the kernel.</para>
+ a handler for core dumps invoked by the kernel. Whether <command>systemd-coredump</command> is used
+ is determined by the kernel's
+ <varname>kernel.core_pattern</varname> <citerefentry project='man-pages'><refentrytitle>sysctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+ setting. See
+ <citerefentry><refentrytitle>systemd-coredump</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+ and
+ <citerefentry project='man-pages'><refentrytitle>core</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ pages for the details.</para>
</refsect1>
<xi:include href="standard-conf.xml" xpointer="main-conf" />
<varlistentry>
<term><varname>Storage=</varname></term>
- <listitem><para>Controls where to store cores. One of
- <literal>none</literal>, <literal>external</literal>,
- <literal>journal</literal>, and <literal>both</literal>. When
- <literal>none</literal>, the coredumps will be logged but not
- stored permanently. When <literal>external</literal> (the
- default), cores will be stored in <filename>/var/lib/systemd/coredump</filename>.
- When <literal>journal</literal>, cores will be stored in
- the journal and rotated following normal journal
- rotation patterns. When <literal>both</literal>, cores
- will be stored in both locations.</para>
+ <listitem><para>Controls where to store cores. One of <literal>none</literal>,
+ <literal>external</literal>, and <literal>journal</literal>. When
+ <literal>none</literal>, the core dumps will be logged (including the backtrace if
+ possible), but not stored permanently. When <literal>external</literal> (the
+ default), cores will be stored in <filename>/var/lib/systemd/coredump/</filename>.
+ When <literal>journal</literal>, cores will be stored in the journal and rotated
+ following normal journal rotation patterns.</para>
<para>When cores are stored in the journal, they might be
compressed following journal compression settings, see
<term><varname>Compress=</varname></term>
<listitem><para>Controls compression for external
- storage. Takes a boolean argument, defaults to
+ storage. Takes a boolean argument, which defaults to
<literal>yes</literal>.</para>
</listitem>
</varlistentry>
<term><varname>ProcessSizeMax=</varname></term>
<listitem><para>The maximum size in bytes of a core
- which will be processed. Coredumps exceeding this size
+ which will be processed. Core dumps exceeding this size
will be logged, but the backtrace will not be generated
and the core will not be stored.</para></listitem>
</varlistentry>
<term><varname>KeepFree=</varname></term>
<listitem><para>Enforce limits on the disk space taken up by
- externally stored coredumps. <option>MaxUse=</option> makes
- sure that old coredumps are removed as soon as the total disk
- space taken up by coredumps grows beyond this limit (defaults
+ externally stored core dumps. <option>MaxUse=</option> makes
+ sure that old core dumps are removed as soon as the total disk
+ space taken up by core dumps grows beyond this limit (defaults
to 10% of the total disk size). <option>KeepFree=</option>
controls how much disk space to keep free at least (defaults
to 15% of the total disk size). Note that the disk space used
- by coredumps might temporarily exceed these limits while
- coredumps are processed. Note that old coredumps are also
+ by core dumps might temporarily exceed these limits while
+ core dumps are processed. Note that old core dumps are also
removed based on time via
<citerefentry><refentrytitle>systemd-tmpfiles</refentrytitle><manvolnum>8</manvolnum></citerefentry>. Set
- either value to 0 to turn off size based
+ either value to 0 to turn off size-based
clean-up.</para></listitem>
</varlistentry>
</variablelist>