234a10aa9b
In htx_xfer_blks() function, when headers or trailers are partially transferred, we rollback the copy by removing copied blocks. Internally, all blocks between <dstref> and <dstblk> are removed. But if the transfer was stopped because we failed to reserve a block, the variable <dstblk> is NULL. Thus, we must not try to remove it. It is unexpected to call htx_remove_blk() in this case. htx_remove_blk() was updated to test <blk> variable inside the existing BUG_ON(). The block must be defined. For now, this bug may only be encountered when H2 trailers are copied. On H2 headers, the destination buffer is empty. Thus a swap is performed. This patch should fix the issue #1578. It must be backported as far as 2.4.
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)