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HAProxy - Load balancer
Half open counter is used to comptabilize QUIC connections waiting for
address validation. It was recently reworked to adjust its scope. With
each decrement operation, a BUG_ON() was added to ensure the counter
never wraps.
This BUG_ON() could be triggered if an allocation fails for one of
quic_conn members in qc_new_conn(). This is because half open counter is
incremented at the end of qc_new_conn(). However, in case of alloc
failure, quic_conn_release() is called immediately to ensure the counter
is decremented if a connection is freed before peer address has been
validated.
To fix this, increment half open counter early in qc_new_conn() prior to
every quic_conn members allocations.
This issue was reproduced using -dMfail argument.
This issue has been introduced by
commit
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| admin | ||
| dev | ||
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| scripts | ||
| src | ||
| tests | ||
| .cirrus.yml | ||
| .gitattributes | ||
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| .mailmap | ||
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| BRANCHES | ||
| BSDmakefile | ||
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| CONTRIBUTING | ||
| INSTALL | ||
| LICENSE | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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| VERDATE | ||
| VERSION | ||
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)