[tor-bugs] #27813 [Core Tor/Tor]: Tor 0.3.4.8 is leaking memory

[Tor Bug Tracker & Wiki]

#27813: Tor 0.3.4.8 is leaking memory
-------------------------------------------------+-------------------------
 Reporter:  anong                                |          Owner:  (none)
     Type:  defect                               |         Status:  new
 Priority:  Very High                            |      Milestone:  Tor:
                                                 |  0.3.5.x-final
Component:  Core Tor/Tor                         |        Version:  Tor:
                                                 |  0.3.4.8
 Severity:  Critical                             |     Resolution:
 Keywords:  regression? memleak oom              |  Actual Points:
  034-backport tor-relay 035-must                |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by r1610091651@…):

 Some additional info.

 I've downgraded to 3.3.7 this weekend, and relay is stable again. Noticed
 following though:

 [[Image(https://www.dropbox.com/s/44hmbd4j3hkip5s/throughput-
 week.png?dl=1)]]

 After upgrade from 3.3.7 -> 3.4.8 I've noticed a drop in throughput with
 similar #connections & weight. Now with downgrade done, i see increase in
 throughput again.

 Could it be that somewhere between 3.3.7 -> 3.4.8 stream compression was
 added? That could explain the drop in network usage, and if resources used
 for that compression aren't released properly also the memory leak, all
 with similar connection count & weight..

 Regards

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27813#comment:23>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online