[tor-bugs] #25226 [Core Tor/Tor]: Circuit cell queue can fill up memory

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#25226: Circuit cell queue can fill up memory
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 Reporter:  dgoulet                              |          Owner:  dgoulet
     Type:  defect                               |         Status:
                                                 |  needs_review
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.3.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-cell, tor-relay, tor-dos,        |  Actual Points:
  033-must                                       |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by nickm):

 Note from IRC: I like the idea here as a band-aid. I think that the
 maximum should be configured via a consensus param, though, and default to
 something a bit higher than 1000?

 Also I really want to know what Roger thinks of that idea.

 In the long term, we're not going to get long-term fixes for the
 performance issues caused by being low on memory of this until we can
 better identify memory pressure: either by setting MaxMemInQueues more
 aggressively, working with the OS/allocator somehow, asking the user to
 configure MaxMemInQueues to a lower value, or something like that.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25226#comment:10>
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