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Willy Tarreau 783afbe93b BUG/MAJOR: tasks: don't requeue global tasks into the local queue 
A bug was introduced by commit 77015abe0 ("MEDIUM: tasks: clean up the
front side of the wait queue in wake_expired_tasks()"): front tasks
that are not yet expired were incorrectly requeued into the local
wait queue instead of the global one. Because of this, the same task
could be found by the same thread on next invocation and be unlinked
without locking, allowing another thread to requeue it in parallel,
and conversely another thread could unlink it while the task was being
walked over, causing all sorts of crashes and endless loops in
wake_expired_tasks() and affiliates.

This bug can easily be triggered by stressing the do_resolve action
in multi-thread (after applying the fixes required to get do_resolve
to work with threads). It certainly is the cause of issue #758.

This must be backported to 2.2 only.
2020-07-22 14:12:45 +02:00
.github CI: extend spellchecker whitelist 2020-06-26 11:26:52 +02:00
contrib MINOR: contrib/prometheus-exporter: Add missing global and per-server metrics 2020-07-15 14:08:14 +02:00
doc DOC: ssl: req_ssl_sni needs implicit TLS 2020-07-19 06:36:12 +02:00
examples CLEANUP: assorted typo fixes in the code and comments 2020-06-26 11:27:28 +02:00
include BUG/MEDIUM: resolve: fix init resolving for ring and peers section. 2020-07-21 17:59:20 +02:00
reg-tests BUG/MINOR: http-rules: Fix ACLs parsing for http deny rules 2020-06-30 09:32:03 +02:00
scripts CI: travis-ci: switch BoringSSL builds to ninja 2020-06-26 11:26:26 +02:00
src BUG/MAJOR: tasks: don't requeue global tasks into the local queue 2020-07-22 14:12:45 +02:00
tests MINOR: lists: rename some MT_LIST operations to clarify them 2020-07-10 08:50:41 +02:00
.cirrus.yml CI: cirrus-ci: exclude slow reg-tests 2020-07-04 06:58:14 +02:00
.gitignore DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
.travis.yml CI: travis-ci: speed up osx build by running brew scripted, switch to latest osx image 2020-07-15 08:42:18 +02:00
BRANCHES DOC: assorted typo fixes in the documentation 2020-03-09 14:45:58 +01:00
CHANGELOG [RELEASE] Released version 2.3-dev1 2020-07-17 15:13:19 +02:00
CONTRIBUTING DOC: assorted typo fixes in the documentation and Makefile 2020-03-06 10:49:55 +01:00
INSTALL MINOR: version: back to development, update status message 2020-07-07 16:38:51 +02:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS REORG: include: split hathreads into haproxy/thread.h and haproxy/thread-t.h 2020-06-11 10:18:56 +02:00
Makefile MEDIUM: udp: adds minimal proto udp support for message listeners. 2020-07-15 17:50:12 +02:00
README DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
ROADMAP DOC: update the outdated ROADMAP file 2019-06-15 21:59:54 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 2.3-dev1 2020-07-17 15:13:19 +02:00
VERSION [RELEASE] Released version 2.3-dev1 2020-07-17 15:13:19 +02:00

README 

The HAProxy documentation has been split into a number of different files for
ease of use.

Please refer to the following files depending on what you're looking for :

  - INSTALL for instructions on how to build and install HAProxy
  - BRANCHES to understand the project's life cycle and what version to use
  - LICENSE for the project's license
  - CONTRIBUTING for the process to follow to submit contributions

The more detailed documentation is located into the doc/ directory :

  - doc/intro.txt for a quick introduction on HAProxy
  - doc/configuration.txt for the configuration's reference manual
  - doc/lua.txt for the Lua's reference manual
  - doc/SPOE.txt for how to use the SPOE engine
  - doc/network-namespaces.txt for how to use network namespaces under Linux
  - doc/management.txt for the management guide
  - doc/regression-testing.txt for how to use the regression testing suite
  - doc/peers.txt for the peers protocol reference
  - doc/coding-style.txt for how to adopt HAProxy's coding style
  - doc/internals for developer-specific documentation (not all up to date)