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The systemd System and Service Manager
39,076 Commits 4 Branches 398 Tags 558 MiB
C 89.2%
Python 5.3%
Shell 4.1%
Meson 1.2%
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Chris Morin 08f9e80b3f journal-file: handle SIGBUS on offlining thread 
The thread launched in journal_file_set_offline() accesses a memory
mapped file, so it needs to handle SIGBUS. Leave SIGBUS unblocked on the
offlining thread so that it uses the same handler as the main thread.

The result of triggering SIGBUS in a thread where it's blocked is
undefined in Linux. The tested implementations were observed to cause
the default handler to run, taking down the whole journald process.

We can leave SIGBUS unblocked in multiple threads since it's handler is
thread-safe. If SIGBUS is sent to the journald process asynchronously
(i.e. with kill, sigqueue, or raise), either thread handling it will
result in the same behavior: it will install the default handler and
reraise the signal, killing the process.

Fixes: #12042
2019-03-20 13:02:04 +01:00
.github/ISSUE_TEMPLATE docs: move markdown docs from .github/ to docs/ 2018-09-08 13:39:03 -07:00
.lgtm/cpp-queries lgtm: replace the query used for looking for fgets with a more general query 2019-03-12 10:08:23 +01:00
.mkosi mkosi: (Archlinux) increase the size of root partition. 2019-02-22 19:53:27 +09:00
catalog catalog: update Polish translation 2018-11-19 09:23:04 +01:00
coccinelle tree-wide: more IOVEC_MAKE() conversions 2018-11-28 13:08:19 +09:00
docs docs: adjust the spec a bit with firmware authros in mind 2019-03-14 15:13:33 +01:00
factory/etc man,factory: update factory config for nsswitch.conf to match the man pages 2018-11-27 22:35:02 +01:00
hwdb Merge pull request #12028 from poettering/start-limit-hit 2019-03-19 13:40:55 +01:00
man journalctl: support -b all to negate effect of -b 2019-03-19 10:48:26 +01:00
modprobe.d Add SPDX license headers to various assorted files 2017-11-19 19:08:15 +01:00
network link-config: add "keep" policy and use it by default 2019-01-17 13:56:02 +01:00
po po: update French translation 2019-03-12 13:54:29 +01:00
presets Drop my copyright headers 2018-06-14 13:03:20 +02:00
rules units: add usb-gadget target 2019-02-15 18:16:27 +01:00
semaphoreci semaphoreci: caching and more robust creation of container image 2019-03-04 15:05:14 +01:00
shell-completion bash-completion: add systemd-id128 support 2019-03-15 18:54:53 +09:00
src journal-file: handle SIGBUS on offlining thread 2019-03-20 13:02:04 +01:00
sysctl.d Enable regular file and FIFO protection 2019-01-16 12:22:01 +01:00
sysusers.d sysusers,tmpfiles: re-create systemd-network, systemd-resolve and systemd-timesync 2018-07-16 17:11:50 +02:00
test journalctl: support -b all to negate effect of -b 2019-03-19 10:48:26 +01:00
tmpfiles.d sysusers,tmpfiles: re-create systemd-network, systemd-resolve and systemd-timesync 2018-07-16 17:11:50 +02:00
tools tools: check all directives even if it detects non-updated files 2019-02-25 12:41:11 +09:00
travis-ci travis: use /bin/systemd instead of /usr/bin/systemd 2019-03-05 08:00:22 +03:00
units Revert "Revert "units: lock down logind with fs namespacing options"" 2019-03-19 10:58:49 +01:00
xorg login: avoid external process call 2018-01-12 18:02:57 +01:00
.ctags editors: Prevent ctags from following symlinks 2019-02-15 11:01:20 -08:00
.dir-locals.el Better C code formatting of arguments in Emacs 2019-02-28 16:50:53 +01:00
.editorconfig editorconfig: add rule for meson.build files (#6671) 2017-08-28 16:37:23 +02:00
.gitattributes git: indicate that tabs are never OK in the systemd tree 2013-10-30 02:25:38 +01:00
.gitignore gitignore: add nspawn image lock and mkosi temporary files 2018-09-07 20:00:22 +02:00
.lgtm.yml lgtm: use python3 2018-12-10 03:07:17 +09:00
.mailmap NEWS: update for final v241 2019-02-14 10:58:06 +01:00
.travis.yml travis: add another stage to really run everything under ASan+UBsan 2018-12-24 08:52:33 +01:00
.vimrc coding style: reduce text width to 109 characters 2018-12-08 10:14:28 +01:00
.ycm_extra_conf.py ycm: add doc string for all the functions in configuration file 2017-11-29 13:21:49 -07:00
configure build-sys: add basic support for ./configure && make && make install 2017-07-18 10:05:06 -04:00
LICENSE.GPL2 relicense to LGPLv2.1 (with exceptions) 2012-04-12 00:24:39 +02:00
LICENSE.LGPL2.1 licence: remove references to old FSF address 2012-12-17 11:41:31 +01:00
Makefile build-sys: Fix Makefile wrapper for install target (#6548) 2017-08-07 11:29:20 +02:00
meson_options.txt Merge pull request #11827 from keszybz/pkgconfig-variables 2019-02-26 18:58:03 +01:00
meson.build Re-add uaccess tag for /dev/dri/renderD* 2019-03-14 11:08:58 +01:00
mkosi.build mkosi: let's update the boot loader also in /efi 2019-03-01 12:41:32 +01:00
mkosi.default mkosi: create .mkosi directory 2016-10-06 11:53:58 -04:00
NEWS tree-wide: spell "lifecycle" without hyphen everywhere 2019-03-14 22:47:44 +01:00
README README: mention that we need tzdata >= 2014f 2019-02-28 15:38:47 +01:00
README.md Revert "README: remove Coverity Scan badge" 2019-02-14 12:13:55 +01:00
TODO update TODO 2019-03-12 16:10:55 +01:00
zanata.xml po: add basic fedora.zanata.org configuration 2018-02-19 13:56:57 +01:00

README.md

systemd - System and Service Manager

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Details

General information about systemd can be found in the systemd Wiki.

Information about build requirements is provided in the README file.

Consult our NEWS file for information about what's new in the most recent systemd versions.

Please see the Hacking guide for information on how to hack on systemd and test your modifications.

Please see our Contribution Guidelines for more information about filing GitHub Issues and posting GitHub Pull Requests.

When preparing patches for systemd, please follow our Coding Style Guidelines.

If you are looking for support, please contact our mailing list or join our IRC channel.

Stable branches with backported patches are available in the stable repo.