|
@@ -1,3 +1,47 @@
|
|
|
+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.
|
|
|
+
|
|
|
+ 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 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.
|
|
|
+
|
|
|
+ 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.
|
|
|
+
|
|
|
+ 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
|
|
|
Tor 0.3.2.7-rc fixes various bugs in earlier versions of Tor,
|
|
|
including some that could affect reliability or correctness.
|