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This was done at several places. First in qc_requeue_nacked_pkt_tx_frms.
This aim of this function is, if needed, to requeue all the TX frames of a lost
<pkt> packet passed as argument and detach them from this packet they have been
sent from. They are possible cases where the frm->pkt quic_frame struct member could
be NULL, as a result of a duplication of an original frame by qc_dup_pkt_frms(). This
function adds the duplicated frame to the original frame reference list:
LIST_APPEND(&origin->reflist, &dup_frm->ref);
But, in this function, the packet which contains the frame is the one which is passed
as argument (for debug purpose). So let us prefer using this variable.
Also do not dereference this ->pkt quic_frame member in qc_release_frm() and
qc_frm_unref() and add a trace to catch the frame with a null ->pkt member.
They are logically frames which have not already been sent.
Thank you to Tristan for having reported such crashes in GH #1808.
Must be backported 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)