[tor-bugs] #21312 [Obfuscation/Snowflake]: snowflake-client is pegged at 100% cpu

Tor Bug Tracker & Wiki blackhole at torproject.org
Thu Aug 17 01:06:23 UTC 2017


#21312: snowflake-client is pegged at 100% cpu
-----------------------------------+------------------------
 Reporter:  arlolra                |          Owner:  (none)
     Type:  defect                 |         Status:  new
 Priority:  Medium                 |      Milestone:
Component:  Obfuscation/Snowflake  |        Version:
 Severity:  Normal                 |     Resolution:
 Keywords:                         |  Actual Points:
Parent ID:                         |         Points:
 Reviewer:                         |        Sponsor:
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Comment (by yawning):

 Replying to [comment:13 dcf]:
 > Here are backtraces from another case from today, this time with
 debugging symbols. In this case there were 89 threads and 168 fds.

 Not immediately attributable to the leak I pointed out **7 MONTHS AGO**:
 55, 11, 12, 11, 10, 6, 5, 4, 3, 2, 1

 The Peer object leaks webrtc Thread objects, and said Thread objects also
 happen to call `pipe()` as part of the creation process.  This is no
 longer news.  While I'm not going to rule out there being other things
 that are wrong, fixing the bindings is probably a good idea.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21312#comment:14>
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