.
Thread 2 (Thread 1772):
#0  0x00007f16ff52aebf in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = 18446744073709551100
        oldtype = 0
        result = <value optimized out>
#1  0x00007f1700877074 in g_main_context_poll (context=0x2584aa0, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.2/./glib/gmain.c:3404
        poll_func = 0x7f1700887060 <g_poll>
#2  g_main_context_iterate (context=0x2584aa0, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.2/./glib/gmain.c:3086
        max_priority = 2147483647
        timeout = -1
        some_ready = <value optimized out>
        nfds = 1
        allocated_nfds = <value optimized out>
        fds = 0x2584ee0
#3  0x00007f1700877962 in g_main_loop_run (loop=0x2584a80) at /build/buildd/glib2.0-2.28.2/./glib/gmain.c:3299
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007f17018a0d14 in gdbus_shared_thread_func (data=<value optimized out>) at /build/buildd/glib2.0-2.28.2/./gio/gdbusprivate.c:276
No locals.
#5  0x00007f170089e1e4 in g_thread_create_proxy (data=0x2584b80) at /build/buildd/glib2.0-2.28.2/./glib/gthread.c:1897
        thread = 0x2584b80
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#6  0x00007f17001a2d7c in start_thread (arg=0x7f16fcda3700) at pthread_create.c:304
        pd = 0x7f16fcda3700
        now = <value optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139736708167424, -7491454883444402051, 140736388486752, 139736708168128, 0, 3, 7360281253851846781, 7360853549672716413}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        robust = <value optimized out>
        sp = <value optimized out>
        freesize = <value optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f16ff537fdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#8  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 1753):
#0  g_source_unref (source=0x100000001) at /build/buildd/glib2.0-2.28.2/./glib/gmain.c:1734
        __PRETTY_FUNCTION__ = "g_source_unref"
#1  0x000000000042cc38 in ~RefPtr (this=0x2540ab0, __in_chrg=<value optimized out>) at /usr/include/glibmm-2.4/glibmm/refptr.h:207
No locals.
#2  PrivateScreen::~PrivateScreen (this=0x2540ab0, __in_chrg=<value optimized out>) at /build/buildd/compiz-0.9.4/src/screen.cpp:4781
No locals.
#3  0x000000000042ceb9 in PrivateScreen::~PrivateScreen (this=0x2540ab0, __in_chrg=<value optimized out>) at /build/buildd/compiz-0.9.4/src/screen.cpp:4783
No locals.
#4  0x000000000042af95 in CompScreen::~CompScreen (this=0x25409f0, __in_chrg=<value optimized out>) at /build/buildd/compiz-0.9.4/src/screen.cpp:4688
        p = <value optimized out>
#5  0x000000000042b0a9 in CompScreen::~CompScreen (this=0x25409f0, __in_chrg=<value optimized out>) at /build/buildd/compiz-0.9.4/src/screen.cpp:4691
No locals.
#6  0x0000000000422769 in CompManager::fini (this=<value optimized out>) at /build/buildd/compiz-0.9.4/src/main.cpp:259
No locals.
#7  0x0000000000422f68 in main (argc=<value optimized out>, argv=0x7fffbe716158) at /build/buildd/compiz-0.9.4/src/main.cpp:287
        manager = {plugins = {<std::_List_base<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >> = {_M_impl = {<std::allocator<std::_List_node<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >> = {<__gnu_cxx::new_allocator<std::_List_node<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >> = {<No data fields>}, <No data fields>}, _M_node = {_M_next = 0x25409b0, _M_prev = 0x25409b0}}}, <No data fields>}, disableSm = false, clientId = 0x25bbc20 "10c3bc10b24146a4ed129977007715134300000016870035", displayName = 0x0}