man: add coredump.conf(5)

Makefile-man.am

@@ -664,6 +664,7 @@ endif
 
 if ENABLE_COREDUMP
 MANPAGES += \
+	man/coredump.conf.5 \
 	man/coredumpctl.1
 MANPAGES_ALIAS += \
 	#
@@ -1483,6 +1484,7 @@ EXTRA_DIST += \
 	man/bootctl.xml \
 	man/bootup.xml \
 	man/busctl.xml \
+	man/coredump.conf.xml \
 	man/coredumpctl.xml \
 	man/crypttab.xml \
 	man/daemon.xml \

man/coredump.conf.xml

@@ -0,0 +1,136 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+        "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+  This file is part of systemd.
+
+  Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="coredump.conf" conditional="ENABLE_COREDUMP">
+  <refentryinfo>
+    <title>coredump.conf</title>
+    <productname>systemd</productname>
+
+    <authorgroup>
+      <author>
+        <contrib>Developer</contrib>
+        <firstname>Lennart</firstname>
+        <surname>Poettering</surname>
+        <email>lennart@poettering.net</email>
+      </author>
+    </authorgroup>
+  </refentryinfo>
+
+  <refmeta>
+    <refentrytitle>coredump.conf</refentrytitle>
+    <manvolnum>5</manvolnum>
+  </refmeta>
+
+  <refnamediv>
+    <refname>coredump.conf</refname>
+    <refpurpose>Coredump storage configuration file</refpurpose>
+  </refnamediv>
+
+  <refsynopsisdiv>
+    <para><filename>/etc/systemd/coredump.conf</filename></para>
+  </refsynopsisdiv>
+
+  <refsect1>
+    <title>Description</title>
+
+    <para>This file configures the behaviour of <command>systemd-coredump</command>,
+    a handler for core dumps invoked by the kernel.</para>
+  </refsect1>
+
+  <refsect1>
+    <title>Options</title>
+
+    <para>All options are configured in the
+    <literal>[Coredump]</literal> section:</para>
+
+    <variablelist>
+
+      <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>
+
+        <para>When cores are stored in the journal, they might be
+        compressed following journal compression settings, see
+        <citerefentry><refentrytitle>journald.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+        When cores are stored externally, they will be compressed
+        by default, see below.</para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><varname>Compression=</varname></term>
+
+        <listitem><para>Controls the type of compression for external
+        storage. One of <literal>xz</literal> or
+        <literal>none</literal>.</para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><varname>CompressionLevel=</varname></term>
+
+        <listitem><para>Controls the level of compression for external
+        storage. An integer between 0 and 9. See
+        <citerefentry><refentrytitle>xz</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+        for more details.</para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><varname>ProcessSizeMax=</varname></term>
+
+        <listitem><para>The maximum size in bytes of a core
+        which will be processed. Coredumps exceeding this size
+        will be logged, but the backtrace will not be generated
+        and the core will not be stored.</para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><varname>ExternalSizeMax=</varname></term>
+        <term><varname>JournalSizeMax=</varname></term>
+
+        <listitem><para>The maximum (uncompressed) size in bytes of a
+        core to be saved.</para></listitem>
+      </varlistentry>
+    </variablelist>
+
+  </refsect1>
+
+  <refsect1>
+    <title>See Also</title>
+    <para>
+      <citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>coredumpctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+    </para>
+  </refsect1>
+
+</refentry>

src/journal/coredump.conf

@@ -9,6 +9,9 @@
 
 [Coredump]
 #Storage=external
+#Compression=xz
+#CompressionLevel=6
+
 #ProcessSizeMax=2G
 #ExternalSizeMax=2G
 #JournalSizeMax=767M