201 lines
9.2 KiB
Diff
201 lines
9.2 KiB
Diff
From e6751d628bdc96c751517e9b6680d3a3a5cd8f2f Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
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Date: Sun, 13 Jul 2014 20:32:46 -0400
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Subject: [PATCH] man: add systemd-coredump(8) and a bunch of links
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(cherry picked from commit 5146e7e8aec2d394c06771d4c9d0d03fc2cd911c)
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---
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Makefile-man.am | 4 +-
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man/coredumpctl.xml | 2 +
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man/journalctl.xml | 1 +
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man/systemd-coredump.xml | 105 +++++++++++++++++++++++++++++++++++++++
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man/systemd-journald.service.xml | 1 +
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sysctl.d/50-coredump.conf.in | 4 +-
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6 files changed, 115 insertions(+), 2 deletions(-)
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create mode 100644 man/systemd-coredump.xml
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diff --git a/Makefile-man.am b/Makefile-man.am
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index 4238c21710..a02ef733aa 100644
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--- a/Makefile-man.am
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+++ b/Makefile-man.am
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@@ -681,7 +681,8 @@ endif
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if ENABLE_COREDUMP
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MANPAGES += \
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man/coredump.conf.5 \
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- man/coredumpctl.1
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+ man/coredumpctl.1 \
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+ man/systemd-coredump.8
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MANPAGES_ALIAS += \
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#
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@@ -1595,6 +1596,7 @@ EXTRA_DIST += \
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man/systemd-cat.xml \
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man/systemd-cgls.xml \
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man/systemd-cgtop.xml \
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+ man/systemd-coredump.xml \
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man/systemd-cryptsetup-generator.xml \
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man/systemd-cryptsetup@.service.xml \
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man/systemd-debug-generator.xml \
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diff --git a/man/coredumpctl.xml b/man/coredumpctl.xml
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index 73d1b8435f..327ef6e859 100644
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--- a/man/coredumpctl.xml
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+++ b/man/coredumpctl.xml
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@@ -210,6 +210,8 @@
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<refsect1>
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<title>See Also</title>
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<para>
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+ <citerefentry><refentrytitle>systemd-coredump</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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+ <citerefentry><refentrytitle>coredump.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>gdb</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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</para>
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diff --git a/man/journalctl.xml b/man/journalctl.xml
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index 78fc6f6160..de7741c819 100644
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--- a/man/journalctl.xml
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+++ b/man/journalctl.xml
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@@ -908,6 +908,7 @@
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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+ <citerefentry><refentrytitle>coredumpctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>journald.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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</para>
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diff --git a/man/systemd-coredump.xml b/man/systemd-coredump.xml
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new file mode 100644
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index 0000000000..b83b278620
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--- /dev/null
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+++ b/man/systemd-coredump.xml
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@@ -0,0 +1,105 @@
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+<?xml version='1.0'?> <!--*-nxml-*-->
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+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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+
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+<!--
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+ This file is part of systemd.
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+
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+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
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+
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+ systemd is free software; you can redistribute it and/or modify it
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+ under the terms of the GNU Lesser General Public License as published by
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+ the Free Software Foundation; either version 2.1 of the License, or
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+ (at your option) any later version.
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+
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+ systemd is distributed in the hope that it will be useful, but
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+ WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public License
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+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
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+-->
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+
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+<refentry id="systemd-coredump" conditional='ENABLE_COREDUMP'
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+ xmlns:xi="http://www.w3.org/2001/XInclude">
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+
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+ <refentryinfo>
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+ <title>systemd-coredump</title>
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+ <productname>systemd</productname>
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+
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+ <authorgroup>
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+ <author>
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+ <contrib>Developer</contrib>
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+ <firstname>Lennart</firstname>
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+ <surname>Poettering</surname>
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+ <email>lennart@poettering.net</email>
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+ </author>
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+ </authorgroup>
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+ </refentryinfo>
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+
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+ <refmeta>
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+ <refentrytitle>systemd-coredump</refentrytitle>
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+ <manvolnum>8</manvolnum>
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+ </refmeta>
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+
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+ <refnamediv>
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+ <refname>systemd-coredump</refname>
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+ <refpurpose>Log and store core dumps</refpurpose>
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+ </refnamediv>
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+
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+ <refsynopsisdiv>
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+ <para><filename>/usr/lib/systemd/systemd-coredump</filename></para>
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+ </refsynopsisdiv>
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+
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+ <refsect1>
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+ <title>Description</title>
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+
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+ <para><command>systemd-coredump</command> can be used as a helper
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+ binary by the kernel when a user space program receives a fatal
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+ signal and dumps core. For it to be used in this capacity, it must
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+ be specified by the
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+ <varname>kernel.core_pattern</varname> <citerefentry project='man-pages'><refentrytitle>sysctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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+ setting. Systemd installs
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+ <filename>/usr/lib/sysctl.d/50-coredump.conf</filename> which
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+ configures <varname>kernel.core_pattern</varname> to invoke
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+ <command>systemd-coredump</command>. This file may be masked or
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+ overriden to use a different setting following normal
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+ <citerefentry><refentrytitle>sysctl.d</refentrytitle><manvolnum>5</manvolnum></citerefentry> rules.</para>
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+
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+ <para>The behaviour of a specific program upon reception of a
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+ signal is governed by a few factors which are described in detail
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+ in <citerefentry project='man-pages'><refentrytitle>core</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
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+ In particular, the coredump will only be processed when the
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+ related resource limits are high enough. For programs started by
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+ <command>systemd</command> those may be set using
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+ <varname>LimitCore=</varname> (see
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+ <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>).
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+ </para>
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+
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+ <para><command>systemd-coredump</command> will log the coredump
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+ including a backtrace if possible, and store the core (contents of
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+ process' memory contents) in an external file on disk in
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+ <filename>/var/lib/systemd/coredump</filename>, or directly in
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+ the journal. This behaviour may be modified using
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+ <citerefentry><refentrytitle>coredump.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
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+
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+ <para>Apart from the
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+ <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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+ log viewer,
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+ <citerefentry><refentrytitle>coredumpctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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+ may be used to list and extract coredumps.</para>
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+ </refsect1>
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+
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+ <refsect1>
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+ <title>See Also</title>
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+ <para>
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+ <citerefentry><refentrytitle>coredump.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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+ <citerefentry><refentrytitle>coredumpctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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+ <citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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+ <citerefentry project='man-pages'><refentrytitle>core</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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+ <citerefentry><refentrytitle>sysctl.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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+ <citerefentry><refentrytitle>systemd-sysctl.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
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+ </para>
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+ </refsect1>
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+</refentry>
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diff --git a/man/systemd-journald.service.xml b/man/systemd-journald.service.xml
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index 7ac73ed66d..eb16118afd 100644
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--- a/man/systemd-journald.service.xml
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+++ b/man/systemd-journald.service.xml
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@@ -248,6 +248,7 @@
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<citerefentry><refentrytitle>journald.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
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+ <citerefentry><refentrytitle>systemd-coredump</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>setfacl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<command>pydoc systemd.journal</command>.
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</para>
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diff --git a/sysctl.d/50-coredump.conf.in b/sysctl.d/50-coredump.conf.in
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index d5795a37d5..d5f600ef45 100644
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--- a/sysctl.d/50-coredump.conf.in
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+++ b/sysctl.d/50-coredump.conf.in
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@@ -5,6 +5,8 @@
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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-# See sysctl.d(5) and core(5) for for details.
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+# See sysctl.d(5) for the description of the files in this directory,
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+# and systemd-coredump(8) and core(5) for the explanation of the
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+# setting below.
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kernel.core_pattern=|@rootlibexecdir@/systemd-coredump %p %u %g %s %t %e
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