crash

(gdb) bt
#0  0x0000000000000080 in ?? ()
#1  0x00007fe083e68b90 in unity::session::GnomeManager::Impl::SetupLogin1Proxy(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) () from /usr/lib/x86_64-linux-gnu/libunity-core-6.0.so.9
#2  0x00007fe083e690ef in ?? ()
   from /usr/lib/x86_64-linux-gnu/libunity-core-6.0.so.9
#3  0x00007fe083e56e4e in ?? ()
   from /usr/lib/x86_64-linux-gnu/libunity-core-6.0.so.9
#4  0x00007fe089857543 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007fe089857bf6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007fe08988a6fa in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#7  0x00007fe089857543 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#8  0x00007fe089857579 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#9  0x00007fe09e26e6ea in g_main_context_dispatch ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fe09e26eaa0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fe09e26edc2 in g_main_loop_run ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007fe0a030049f in compiz::private_screen::EventManager::startEventLoop(_XDisplay*) () from /usr/lib/x86_64-linux-gnu/libcompiz_core.so.ABI-20151010
#13 0x0000561be0f6d771 in main ()