[tbb-bugs] #19744 [Applications/Tor Browser]: segfault while trying nightly build as other user but works as root

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#19744: segfault while trying nightly build as other user but works as root
------------------------------------------+------------------------------
     Reporter:  scooby                    |      Owner:  tbb-team
         Type:  defect                    |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:  Tor: unspecified
     Severity:  Critical                  |   Keywords:
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
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 Wanted to try https://people.torproject.org/~linus/builds/tbb-nightly-
 hardened-2016-07-24/
 for test with selfrando

 I'm on Arch linux derivative, kernel 4.1.6 using kernel randomization and
 AUFS patch.



 > ./start-tor-browser -v
 Rand seed:1001955615
 Module at 0x7ffca4e64cb8 dynamic:0x5619f04cc8b0 PIT:0x5619f04cd000
 base:0x5619f0092000->0x5619f0492000 GOT:0x5619f04ccbe0
 eh_f_hdr:0x5619f04ca63c
 ASAN:SIGSEGV
 =================================================================
 ==22965==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000
 (pc 0x7f39275fb928 bp 0x7ffca4e64ca8 sp 0x7ffca4e64c08 T0)
 SRAT init
 SRAT warning: cannot find Memory Layout File. Stack trace will be probably
 wrong.
 ASAN:SIGSEGV
 ==22965==AddressSanitizer: while reporting a bug found another one.
 Ignoring.





 Hacked around in start-tor-browser to allow it be started as user root and
 then it works
 so some user problem.
 er other than

 What I can say is that the regular tor-browser works fine as that other
 user.
 So what changed?

 I'm attaching file with debug output for run with root rights.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/19744>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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