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6e805dab2a
There's a rare race condition possible when trying to retrieve session from
a back connection's owner, that was fixed in 2.4 and described in commit
3aab17bd5 ("BUG/MAJOR: connection: reset conn->owner when detaching from
session list").
It also affects the trace code which does the same, so the same fix is
needed, i.e. check from conn->session_list that the connection is still
enlisted. It's visible when sending a few tens to hundreds of parallel
requests to an h2 backend and enabling traces in parallel.
This should be backported as far as 2.2 which is the oldest version
supporting traces.
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)