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The total number of buffer per connection for sending is limited by a configuration value. To ensure this, <stream_buf_count> quic_conn field is incremented on qc_stream_buf_alloc(). qc_stream_buf_alloc() may fail if the buffer cannot be allocated. In this case, <stream_buf_count> should not be incremented. To fix this, simply move increment operation after buffer allocation. The impact of this bug is low. However, if a connection suffers from several buffer allocation failure, it may cause the <stream_buf_count> to be incremented over the limit without being able to go back down. This must be backported up to 2.6.
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)