[tbb-bugs] #26475 [Applications/Tor Browser]: ESR60-based Tor Browser bundles are not built reproducibly with Stylo enabled using rustc > 1.25.0

Tor Bug Tracker & Wiki blackhole at torproject.org
Tue Oct 16 14:22:17 UTC 2018


#26475: ESR60-based Tor Browser bundles are not built reproducibly with Stylo
enabled using rustc > 1.25.0
-------------------------------------------------+-------------------------
 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:
                                                 |  needs_review
 Priority:  Immediate                            |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-rbm, TorBrowserTeam201810R,      |  Actual Points:
  GeorgKoppen201810                              |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by gk):

 Replying to [comment:50 alexcrichton]:
 > Glad that ended up working out! From my testing oh-so-long-ago at this
 point I suspected this was an LLVM issue, and disabling ThinLTO
 effectively serializes all of LLVM's work, so I wonder if this is a race
 somewhere in LLVM between some shared data structure across threads which
 affects ordering...

 Maybe. I am still bisecting LLVM (what introduced the issue and what fixed
 it as the latter is not clear either) which is... non-trivial. I'll update
 this ticket with my findings.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26475#comment:51>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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