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- o Major bugfixes:
- - Ignore negative and large timeout values that can happen during a
- suspend or hibernate. These values caused various asserts to fire
- in the circuit build times code, crashing Tor. Bug 1245, bugfix on
- 0.2.2.2-alpha.
- - Alter calculation of Pareto distribution parameter 'Xm' for Circuit Build
- Timeout learning to use the weighted average of the top N=3 modes. This
- should improve the timeout calculation in some cases, and prevent
- extremely high timeout values. Bug 1335, bugfix on 0.2.2.2-alpha.
- - Implement a filtering step to recompute synthetic build times every time
- the timeout changes. Additionally, place a lower cap on synthetic build
- times, and allow this cap to be controlled by the consensus. This should
- also improve the build time calculations, and should eliminate a case
- where Tor was allocating an excessive amount of temporary memory during
- timeout calculation. Bugs 1335 and 1245, bugfix on 0.2.2.2-alpha.
- o Minor bugfixes:
- - Eliminate a case where a circuit build time warning was displayed after
- network connectivity resumed.
- o Minor features:
- - Add a TIMEOUT_RATE keyword to the BUILDTIMEOUT_SET control port event,
- to give information on the current rate of circuit timeouts over our
- stored history.
- - Add ability to disable circuit build time learning via consensus
- parameter and via a LearnCircuitBuildTimeout config option. Also
- automatically disable circuit build time calculation if we are either
- a AuthoritativeDirectory, or if we fail to write our state file. Bug 1296.
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