[tor-bugs] #22729 [Core Tor/Tor]: Revisit relay read/write history resolution (for onion services)

[Tor Bug Tracker & Wiki]

#22729: Revisit relay read/write history resolution (for onion services)
-------------------------------------------------+-------------------------
 Reporter:  mikeperry                            |          Owner:  (none)
     Type:  defect                               |         Status:  new
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  unspecified
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-hs, guard-discovery-stats,       |  Actual Points:
  privcount                                      |
Parent ID:  #22898                               |         Points:
 Reviewer:                                       |        Sponsor:
                                                 |  SponsorV-can
-------------------------------------------------+-------------------------

Comment (by mikeperry):

 In ticket:23512#comment:35, jaym reported that after the fix, write totals
 were larger than read totals for relays under attack by the oom side
 channel.

 There are many possible sources for this discrepancy, and it may not
 actually not be visible under our current live network's stats resolution
 -- the discrepancy was shown only in chutney. We should see if we can
 reproduce it using his code at
 https://github.com/frochet/dropping_on_the_edge/tree/master/hs_drop_attack
 in a more realistic fashion

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22729#comment:8>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online