[tbb-bugs] #18090 [Applications/Tor Browser]: Torcrazybutton eats all memory and crashes Tor Browser

Tor Bug Tracker & Wiki blackhole at torproject.org
Thu Mar 2 20:30:45 UTC 2017

#18090: Torcrazybutton eats all memory and crashes Tor Browser
 Reporter:  bugzilla                             |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:
                                                 |  reopened
 Priority:  Medium                               |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Major                                |     Resolution:
 Keywords:  tbb-crash, tbb-performance-leaking,  |  Actual Points:
  tbb-oom, tbb-torbutton                         |
Parent ID:  #18047                               |         Points:
 Reviewer:                                       |        Sponsor:
Changes (by bugzilla):

 * status:  closed => reopened
 * resolution:  duplicate =>


 Unfortunately, this bug is not fixed :(. Torbutton was affected by some
 underlying problem and made it easier to trigger and faster to go to OOM.
 Now, to trigger "unbound recursion" (?) you need, for example, to supply
 constant stream of tiny icons/images on a webpage and see when the process
 will become self-sustainable without it, and FF will continue to do
 something by overloading memory throughput, but very slowly growing in
 size (hours before OOM).

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18090#comment:16>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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