unity8-dash hangs in location service property destructor

[Michał Sawicz]

This is an ABRT in the dash-hung situation from bug #1362769, hoping for something interesting in the retrace.

To reproduice:
In your favorites scopes you should have Apps, My Music and The Weather Channel scopes.
There should be some local music and it should appear in my music

Go to my music scope (by default it is set to Artist), set the Album view.
Click on an album in the scope view go back, move in the scopes in the direction of the weather channel scope.

As soon as you enter the weather channel scope the screen is divided between the two scopes and you cannot exit this screen. You can still access other apps via the left launcher and launch them successfully.

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: unity8 8.00+14.10.20140903.1-0ubuntu1
Uname: Linux 3.4.0-5-mako armv7l
ApportVersion: 2.14.7-0ubuntu2
Architecture: armhf
CurrentDesktop: Unity
Date: Mon Sep 8 22:27:33 2014
ExecutablePath: /usr/bin/unity8-dash
ExecutableTimestamp: 1409733142
InstallationDate: Installed on 2014-09-08 (0 days ago)
InstallationMedia: Ubuntu Utopic Unicorn (development branch) - armhf (20140908-123005)
ProcCmdline: unity8-dash --desktop_file_hint=/usr/share/applications/unity8-dash.desktop
ProcCwd: /home/phablet
Signal: 6
SourcePackage: unity8
StacktraceTop:
 __libc_do_syscall () from /lib/arm-linux-gnueabihf/libpthread.so.0
 pthread_cond_wait@@GLIBC_2.4 () from /lib/arm-linux-gnueabihf/libpthread.so.0
 __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/buildd/gcc-4.9-4.9.1/build/arm-linux-gnueabihf/libstdc++-v3/include/arm-linux-gnueabihf/bits/gthr-default.h:864
 std::condition_variable::wait (this=<optimized out>, __lock=...) at ../../../../../src/libstdc++-v3/src/c++11/condition_variable.cc:52
 com::ubuntu::location::service::Stub::create_session_for_criteria(com::ubuntu::location::Criteria const&) () from /usr/lib/arm-linux-gnueabihf/libubuntu-location-service.so.2
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dialout dip plugdev sudo tty video

[Apport retracing service (apport)]

StacktraceTop:
 __libc_do_syscall () at ../ports/sysdeps/unix/sysv/linux/arm/libc-do-syscall.S:43
 __pthread_cond_wait (cond=0x218a870, mutex=0x218a858) at pthread_cond_wait.c:187
 __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/buildd/gcc-4.9-4.9.1/build/arm-linux-gnueabihf/libstdc++-v3/include/arm-linux-gnueabihf/bits/gthr-default.h:864
 std::condition_variable::wait (this=<optimized out>, __lock=...) at ../../../../../src/libstdc++-v3/src/c++11/condition_variable.cc:52
 com::ubuntu::location::service::Stub::create_session_for_criteria(com::ubuntu::location::Criteria const&) () from /tmp/apport_sandbox_f9VtJH/usr/lib/arm-linux-gnueabihf/libubuntu-location-service.so.2

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.