man/coredump.conf.xml

   1 <?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
   2 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   3         "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
   4
   5 <!--
   6   This file is part of systemd.
   7
   8   Copyright 2014 Zbigniew Jędrzejewski-Szmek
   9
  10   systemd is free software; you can redistribute it and/or modify it
  11   under the terms of the GNU Lesser General Public License as published by
  12   the Free Software Foundation; either version 2.1 of the License, or
  13   (at your option) any later version.
  14
  15   systemd is distributed in the hope that it will be useful, but
  16   WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18   Lesser General Public License for more details.
  19
  20   You should have received a copy of the GNU Lesser General Public License
  21   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  22 -->
  23
  24 <refentry id="coredump.conf" conditional="ENABLE_COREDUMP"
  25           xmlns:xi="http://www.w3.org/2001/XInclude">
  26   <refentryinfo>
  27     <title>coredump.conf</title>
  28     <productname>systemd</productname>
  29
  30     <authorgroup>
  31       <author>
  32         <contrib>Developer</contrib>
  33         <firstname>Lennart</firstname>
  34         <surname>Poettering</surname>
  35         <email>lennart@poettering.net</email>
  36       </author>
  37     </authorgroup>
  38   </refentryinfo>
  39
  40   <refmeta>
  41     <refentrytitle>coredump.conf</refentrytitle>
  42     <manvolnum>5</manvolnum>
  43   </refmeta>
  44
  45   <refnamediv>
  46     <refname>coredump.conf</refname>
  47     <refname>coredump.conf.d</refname>
  48     <refpurpose>Coredump storage configuration files</refpurpose>
  49   </refnamediv>
  50
  51   <refsynopsisdiv>
  52     <para><filename>/etc/systemd/coredump.conf</filename></para>
  53     <para><filename>/etc/systemd/coredump.conf.d/*.conf</filename></para>
  54     <para><filename>/run/systemd/coredump.conf.d/*.conf</filename></para>
  55     <para><filename>/usr/lib/systemd/coredump.conf.d/*.conf</filename></para>
  56   </refsynopsisdiv>
  57
  58   <refsect1>
  59     <title>Description</title>
  60
  61     <para>These files configure the behaviour of
  62     <citerefentry><refentrytitle>systemd-coredump</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
  63     a handler for core dumps invoked by the kernel.</para>
  64   </refsect1>
  65
  66   <xi:include href="standard-conf.xml" xpointer="main-conf" />
  67
  68   <refsect1>
  69     <title>Options</title>
  70
  71     <para>All options are configured in the
  72     <literal>[Coredump]</literal> section:</para>
  73
  74     <variablelist>
  75
  76       <varlistentry>
  77         <term><varname>Storage=</varname></term>
  78
  79         <listitem><para>Controls where to store cores. One of
  80         <literal>none</literal>, <literal>external</literal>,
  81         <literal>journal</literal>, and <literal>both</literal>. When
  82         <literal>none</literal>, the coredumps will be logged but not
  83         stored permanently. When <literal>external</literal> (the
  84         default), cores will be stored in <filename>/var/lib/systemd/coredump</filename>.
  85         When <literal>journal</literal>, cores will be stored in
  86         the journal and rotated following normal journal
  87         rotation patterns. When <literal>both</literal>, cores
  88         will be stored in both locations.</para>
  89
  90         <para>When cores are stored in the journal, they might be
  91         compressed following journal compression settings, see
  92         <citerefentry><refentrytitle>journald.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
  93         When cores are stored externally, they will be compressed
  94         by default, see below.</para></listitem>
  95       </varlistentry>
  96
  97       <varlistentry>
  98         <term><varname>Compress=</varname></term>
  99
 100         <listitem><para>Controls compression for external
 101         storage. Takes a boolean argument, defaults to
 102         <literal>yes</literal>.</para>
 103         </listitem>
 104       </varlistentry>
 105
 106       <varlistentry>
 107         <term><varname>ProcessSizeMax=</varname></term>
 108
 109         <listitem><para>The maximum size in bytes of a core
 110         which will be processed. Coredumps exceeding this size
 111         will be logged, but the backtrace will not be generated
 112         and the core will not be stored.</para></listitem>
 113       </varlistentry>
 114
 115       <varlistentry>
 116         <term><varname>ExternalSizeMax=</varname></term>
 117         <term><varname>JournalSizeMax=</varname></term>
 118
 119         <listitem><para>The maximum (uncompressed) size in bytes of a
 120         core to be saved.</para></listitem>
 121       </varlistentry>
 122
 123       <varlistentry>
 124         <term><varname>MaxUse=</varname></term>
 125         <term><varname>KeepFree=</varname></term>
 126
 127         <listitem><para>Enforce limits on the disk space taken up by
 128         externally stored coredumps. <option>MaxUse=</option> makes
 129         sure that old coredumps are removed as soon as the total disk
 130         space taken up by coredumps grows beyond this limit (defaults
 131         to 10% of the total disk size). <option>KeepFree=</option>
 132         controls how much disk space to keep free at least (defaults
 133         to 15% of the total disk size). Note that the disk space used
 134         by coredumps might temporarily exceed these limits while
 135         coredumps are processed. Note that old coredumps are also
 136         removed based on time via
 137         <citerefentry><refentrytitle>systemd-tmpfiles</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para></listitem>
 138       </varlistentry>
 139     </variablelist>
 140
 141   </refsect1>
 142
 143   <refsect1>
 144     <title>See Also</title>
 145     <para>
 146       <citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
 147       <citerefentry><refentrytitle>coredumpctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 148       <citerefentry><refentrytitle>systemd-tmpfiles</refentrytitle><manvolnum>8</manvolnum></citerefentry>
 149     </para>
 150   </refsect1>
 151
 152 </refentry>