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bbf86be996
If the TX buffer (->tx.buf) attached to the connection is not drained, there
are chances that this will be detected by qc_txb_release() which triggers
a BUG_ON_HOT() when this is the case as follows
[00|quic|2|c_conn.c:3477] UDP port unreachable : qc@0x5584f18d6d50 pto_count=0 cwnd=6816 ppif=1046 pif=1046
[00|quic|5|ic_conn.c:749] qc_kill_conn(): entering : qc@0x5584f18d6d50
[00|quic|5|ic_conn.c:752] qc_kill_conn(): leaving : qc@0x5584f18d6d50
[00|quic|5|c_conn.c:3532] qc_send_ppkts(): leaving : qc@0x5584f18d6d50 pto_count=0 cwnd=6816 ppif=1046 pif=1046
FATAL: bug condition "buf && b_data(buf)" matched at src/quic_conn.c:3098
Consume the remaining data in the TX buffer calling b_del().
This bug arrived with this commit:
a2c62c314 MINOR: quic: Kill the connections on ICMP (port unreachable) packet receipt
Takes also the opportunity of this patch to modify the comments for qc_send_ppkts()
which should have arrived with a2c62c314 commit.
Must be backported to 2.7 where this latter commit is supposed to be backported.
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)