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h2c_restart_reading() is used at various place to resume processing of demux data, but this one refrains from doing so if the mux is already subscribed for receiving. It just happens that even if some incoming frame processing is interrupted, the mux is always subscribed for receiving, so this condition alone is not enough, it must be combined with the fact that the demux buffer is empty, otherwise some resume events are lost. This typically happens when we refrain from processing some incoming data due to missing room in the stream's rxbuf, and want to resume in h2c_rcv_buf(). It will become even more visible with trailers since these ones want to have an empty rxbuf before proceeding. This must be backported to 1.9.
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 - 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)