[tor-bugs] #24826 [Core Tor/Tor]: LZMA- and Zstandard compressed consensus diffs stall Tor Browser launch for at least 20s or break it entirely

Tor Bug Tracker & Wiki blackhole at torproject.org
Thu Jan 11 06:55:30 UTC 2018


#24826: LZMA- and Zstandard compressed consensus diffs stall Tor Browser launch for
at least 20s or break it entirely
--------------------------+------------------------------------
 Reporter:  gk            |          Owner:  (none)
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Milestone:  Tor: 0.3.3.x-final
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:                |  Actual Points:
Parent ID:  #22341        |         Points:
 Reviewer:                |        Sponsor:
--------------------------+------------------------------------

Comment (by gk):

 Replying to [comment:17 nickm]:
 > Oh!  Actually, fragile-hardening does make some code extremely slow, and
 the sha3 code might be one such code.  Do you get the same result without
 it?

 Interesting. So far it looks good. I'll keep testing a bit more, though,
 to be on the safe side.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24826#comment:18>
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