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51f291c795
In hlua_filter_callback(), some lua stack work is performed under SET_SAFE_LJMP() guard which also takes care of locking the hlua context when needed. However, a lua_gettop() call is performed out of the guard, thus it is unsafe in multithreading context if the script is loaded using 'lua-load' because in this case the main lua stack is shared between threads and each access to a lua stack must be performed under the lock, thus we move lua_gettop() call under the lock. It should 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)