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A new counter was recently introduced to comptabilize the current number of active QUIC handshakes. This counter is stored on the listener instance. This counter is incremented at the beginning of qc_new_conn() to check if limit is not reached prior to quic_conn allocation. If quic_conn or one of its inner member allocation fails, special care is taken to decrement the counter as the connection instance is released. However, it relies on <l> variable which is initialized too late to cover pool_head_quic_conn allocation failure. To fix this, simply initialize <l> at the beginning of qc_new_conn(). This issue was reproduced using -dMfail argument. This issue was introduced by the following commit commit 3df6a60113773d8abff3457c7a06e30c1892b7dc MEDIUM: quic: limit handshake per listener No need to backport.
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)