diff --git a/ChangeLog b/ChangeLog index 073822d4b..77d763b80 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,45 +1,45 @@ Changes in version 0.3.2.8-rc - 2017-12-21 - Tor 0.3.2.8-rc fixes a pair of bugs in the KIST and KISTLite schedulers - that had led servers under heavy load to overload their outgoing - connections. All relay operators running earlier 0.3.2.x versions should - upgrade. This version also includes a mitigation for over-full DESTROY - queues leading to out-of-memory conditions: if it works, we will soon - backport it to earlier release series. + Tor 0.3.2.8-rc fixes a pair of bugs in the KIST and KISTLite + schedulers that had led servers under heavy load to overload their + outgoing connections. All relay operators running earlier 0.3.2.x + versions should upgrade. This version also includes a mitigation for + over-full DESTROY queues leading to out-of-memory conditions: if it + works, we will soon backport it to earlier release series. - This is the second release candidate in the 0.3.2 series. If we find no - new bugs or regression here, then the first stable 0.3.2 release will - be nearly identical to this. + This is the second release candidate in the 0.3.2 series. If we find + no new bugs or regression here, then the first stable 0.3.2 release + will be nearly identical to this. o Major bugfixes (KIST, scheduler): - - The KIST scheduler did not correctly account for data already enqueued - in each connection's send socket buffer, particularly in cases when the - TCP/IP congestion window was reduced between scheduler calls. This - situation lead to excessive per-connection buffering in the kernel, and - a potential memory DoS. Fixes bug 24665; bugfix on 0.3.2.1-alpha. - - o Minor bugfixes (scheduler, KIST): - - Use a sane write limit for KISTLite when writing onto a connection - buffer instead of using INT_MAX and shoving as much as it can. Because - the OOM handler cleans up circuit queues, we are better off at keeping - them in that queue instead of the connection's buffer. Fixes bug 24671; - bugfix on 0.3.2.1-alpha. + - The KIST scheduler did not correctly account for data already + enqueued in each connection's send socket buffer, particularly in + cases when the TCP/IP congestion window was reduced between + scheduler calls. This situation lead to excessive per-connection + buffering in the kernel, and a potential memory DoS. Fixes bug + 24665; bugfix on 0.3.2.1-alpha. o Minor features (geoip): - Update geoip and geoip6 to the December 6 2017 Maxmind GeoLite2 Country database. o Minor bugfixes (hidden service v3): - - Bump hsdir_spread_store parameter from 3 to 4 in order to increase the - probability of reaching a service for a client missing microdescriptors. - Fixes bug 24425; bugfix on 0.3.2.1-alpha. + - Bump hsdir_spread_store parameter from 3 to 4 in order to increase + the probability of reaching a service for a client missing + microdescriptors. Fixes bug 24425; bugfix on 0.3.2.1-alpha. o Minor bugfixes (memory usage): - - When queuing DESTROY cells on a channel, only queue the - circuit-id and reason fields: not the entire 514-byte - cell. This fix should help mitigate any bugs or attacks that - fill up these queues, and free more RAM for other uses. Fixes - bug 24666; bugfix on 0.2.5.1-alpha. + - When queuing DESTROY cells on a channel, only queue the circuit-id + and reason fields: not the entire 514-byte cell. This fix should + help mitigate any bugs or attacks that fill up these queues, and + free more RAM for other uses. Fixes bug 24666; bugfix + on 0.2.5.1-alpha. + o Minor bugfixes (scheduler, KIST): + - Use a sane write limit for KISTLite when writing onto a connection + buffer instead of using INT_MAX and shoving as much as it can. + Because the OOM handler cleans up circuit queues, we are better + off at keeping them in that queue instead of the connection's + buffer. Fixes bug 24671; bugfix on 0.3.2.1-alpha. Changes in version 0.3.2.7-rc - 2017-12-14