[tbb-bugs] #20381 [Applications/Tor Browser]: Tor Browser nightly bundles crash on Linux 64bit systems

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#20381: Tor Browser nightly bundles crash on Linux 64bit systems
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 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:  new
 Priority:  Very High                            |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Critical                             |     Resolution:
 Keywords:  tbb-crash, TorBrowserTeam201610,     |  Actual Points:
  GeorgKoppen201610                              |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by gk):

 It turns out this is GCC 6 related. Mozilla provided patches in bug

 https://bugzilla.mozilla.org/show_bug.cgi?id=1269317 and
 https://bugzilla.mozilla.org/show_bug.cgi?id=1269319

 which fixed the problem. They did not get backported to ESR45/Aurora,
 though, as they caused other build bustages, with MSVC and while doing
 builds for Android. We could think about trying to backport those fixes
 ourselves but builds with GCC 6 still seem to be broken until

 https://bugzilla.mozilla.org/show_bug.cgi?id=1232696

 gets fixed. Thus, this will be too unstable to get into 6.5. We should aim
 for Tor Browser 7.0 earliest for GCC 6. Unfortunately, this means EMET
 support (#13893) will need to wait for another while :(

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20381#comment:1>
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