[tbb-bugs] #30162 [Applications/Tor Browser]: Tor Browser bootstrap process got stuck after interrupting it

Tor Bug Tracker & Wiki blackhole at torproject.org
Tue Apr 23 15:01:19 UTC 2019

#30162: Tor Browser bootstrap process got stuck after interrupting it
 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:  new
 Priority:  Very High                            |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-mobile, tbb-8.5-must,            |  Actual Points:
  TorBrowserTeam201904                           |
Parent ID:  #27609                               |         Points:
 Reviewer:                                       |        Sponsor:

Comment (by sisbell):

 I've been unable to reproduce a tor process not getting cleaned up

 We can detect multiple processes running by running

 adb shell ps -ef | grep libTor

 This will display something like

 u0_a236      26768     1 95 07:53:19 ?    00:00:20 libTor.so -f
 __OwningControllerProcess 26167

 If there are two entries, then its not cleaning up.

 The reason I suspect two processes are running on some devices is that a
 tor process will create a lock on some files while in use. A second tor
 process will block, unable to modify the file.

 I think it will be easier to proceed with debugging a Java version where
 there is easily reproducible and test out the fix.

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30162#comment:4>
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