.
Thread 2 (Thread 2218):
#0  0x00007f7cf8131df3 in ?? ()
No symbol table info available.
#1  0x00000000006cf7d0 in ?? ()
No symbol table info available.
#2  0x00000000ffffffff in ?? ()
No symbol table info available.
#3  0x0000000000000001 in ?? ()
No symbol table info available.
#4  0x00000000006cf7d0 in ?? ()
No symbol table info available.
#5  0x0000000000000001 in ?? ()
No symbol table info available.
#6  0x00007f7cf947e104 in g_main_context_poll (context=0x6cf390, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.3/./glib/gmain.c:3404
        poll_func = 0x7f7cf948e130 <g_poll>
#7  g_main_context_iterate (context=0x6cf390, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.3/./glib/gmain.c:3086
        max_priority = 2147483647
        timeout = -1
        some_ready = <value optimized out>
        nfds = 1
        allocated_nfds = <value optimized out>
        fds = 0x6cf7d0
#8  0x00007f7cf947e9f2 in g_main_loop_run (loop=0x6cf370) at /build/buildd/glib2.0-2.28.3/./glib/gmain.c:3299
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#9  0x00007f7cfa4a7d44 in gdbus_shared_thread_func (data=<value optimized out>) at /build/buildd/glib2.0-2.28.3/./gio/gdbusprivate.c:276
No locals.
#10 0x00007f7cf94a53e4 in g_thread_create_proxy (data=0x6cf470) at /build/buildd/glib2.0-2.28.3/./glib/gthread.c:1897
        thread = 0x6cf470
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#11 0x00007f7cf8da9d8c in ?? ()
No symbol table info available.
#12 0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 2211):
#0  g_source_unref (source=0xffffffffffffffff) at /build/buildd/glib2.0-2.28.3/./glib/gmain.c:1734
        __PRETTY_FUNCTION__ = "g_source_unref"
#1  0x000000000042cc38 in ~RefPtr (this=0x68cab0, __in_chrg=<value optimized out>) at /usr/include/glibmm-2.4/glibmm/refptr.h:207
No locals.
#2  PrivateScreen::~PrivateScreen (this=0x68cab0, __in_chrg=<value optimized out>) at /build/buildd/compiz-0.9.4/src/screen.cpp:4781
No locals.
#3  0x000000000042ceb9 in __exchange_and_add_single (this=0x68cab0, __in_chrg=<value optimized out>) at /usr/include/c++/4.5/ext/atomicity.h:65
        __result = <value optimized out>
#4  __exchange_and_add_dispatch (this=0x68cab0, __in_chrg=<value optimized out>) at /usr/include/c++/4.5/ext/atomicity.h:81
No locals.
#5  _M_dispose (this=0x68cab0, __in_chrg=<value optimized out>) at /usr/include/c++/4.5/bits/basic_string.h:235
No locals.
#6  ~basic_string (this=0x68cab0, __in_chrg=<value optimized out>) at /usr/include/c++/4.5/bits/basic_string.h:525
No locals.
#7  ~CompOutput (this=0x68cab0, __in_chrg=<value optimized out>) at /build/buildd/compiz-0.9.4/include/core/output.h:39
No locals.
#8  PrivateScreen::~PrivateScreen (this=0x68cab0, __in_chrg=<value optimized out>) at /build/buildd/compiz-0.9.4/src/screen.cpp:4781
No locals.
#9  0x0000000000422f68 in main (argc=<value optimized out>, argv=0x41f980) at /build/buildd/compiz-0.9.4/src/main.cpp:296
No locals.