.
Thread 3 (LWP 28379):
#0  0xb7794424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb6a155f0 in __GI___poll (fds=0xb4b02398, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = -516
        result = <optimized out>
#2  0xb6b34a7b in g_poll (fds=0xb4b02398, nfds=3, timeout=-1) at /build/buildd/glib2.0-2.32.3/./glib/gpoll.c:132
No locals.
#3  0xb6b270ae in g_main_context_poll (n_fds=3, fds=0xb4b02398, timeout=<optimized out>, context=0xb5509148, priority=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3440
        poll_func = 0xb6b34a50 <g_poll>
#4  g_main_context_iterate (dispatch=1, block=-1229764016, context=0xb5509148, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3141
        timeout = -1
        some_ready = <optimized out>
        fds = 0xb4b02398
        max_priority = 2147483647
        nfds = 3
        allocated_nfds = <optimized out>
#5  g_main_context_iterate (context=0xb5509148, block=-1229764016, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3083
        some_ready = 3
#6  0xb6b2756b in g_main_loop_run (loop=0xb5509120) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3340
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#7  0xb6de31ba in gdbus_shared_thread_func (user_data=0xb5509130) at /build/buildd/glib2.0-2.32.3/./gio/gdbusprivate.c:277
        data = 0xb5509130
#8  0xb6b4a6b3 in g_thread_proxy (data=0xb5504550) at /build/buildd/glib2.0-2.32.3/./glib/gthread.c:801
        thread = 0xb5504550
#9  0xb668ad4c in start_thread (arg=0xb54ffb40) at pthread_create.c:308
        __res = <optimized out>
        pd = 0xb54ffb40
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1234583564, 0, 4001536, -1253051736, 1369295523, 522482341}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#10 0xb6a23d3e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.
.
Thread 2 (LWP 28378):
#0  0xb7794424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb6a155f0 in __GI___poll (fds=0xb5500c78, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = -516
        result = <optimized out>
#2  0xb6b34a7b in g_poll (fds=0xb5500c78, nfds=1, timeout=-1) at /build/buildd/glib2.0-2.32.3/./glib/gpoll.c:132
No locals.
#3  0xb6b270ae in g_main_context_poll (n_fds=1, fds=0xb5500c78, timeout=<optimized out>, context=0x9d961b0, priority=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3440
        poll_func = 0xb6b34a50 <g_poll>
#4  g_main_context_iterate (dispatch=1, block=-1229764016, context=0x9d961b0, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3141
        timeout = -1
        some_ready = <optimized out>
        fds = 0xb5500c78
        max_priority = 2147483647
        nfds = 1
        allocated_nfds = <optimized out>
#5  g_main_context_iterate (context=0x9d961b0, block=-1229764016, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3083
        some_ready = 1
#6  0xb6b2756b in g_main_loop_run (loop=0xb5500c68) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3340
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#7  0xb5fd5134 in dconf_context_thread (data=0x9d961b0) at dconfcontext.c:11
        context = 0x9d961b0
        loop = <optimized out>
        __PRETTY_FUNCTION__ = "dconf_context_thread"
#8  0xb6b4a6b3 in g_thread_proxy (data=0x9d80400) at /build/buildd/glib2.0-2.32.3/./glib/gthread.c:801
        thread = 0x9d80400
#9  0xb668ad4c in start_thread (arg=0xb5e47b40) at pthread_create.c:308
        __res = <optimized out>
        pd = 0xb5e47b40
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1234583564, 0, 4001536, -1243319640, 111004322, 522482341}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#10 0xb6a23d3e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.
.
Thread 1 (LWP 28376):
#0  0xb771f369 in meta_window_appears_focused () from /tmp/apport_sandbox_kqm6Df/usr/lib/libmutter.so.0
No symbol table info available.
#1  0xb76eca0e in ?? () from /tmp/apport_sandbox_kqm6Df/usr/lib/libmutter.so.0
No symbol table info available.
#2  0xb754e736 in _clutter_actor_get_paint_volume_real (pv=0xa6a57fc, self=0xa6a5630) at ./clutter-actor.c:15420
        priv = 0xa6a5650
#3  _clutter_actor_get_paint_volume_mutable (self=0xa6a5630) at ./clutter-actor.c:15496
        priv = 0xa6a5650
#4  0xb757fc78 in clutter_clone_get_paint_volume (actor=0xa665cb8, volume=0xa665e84) at ./clutter-clone.c:213
        priv = <optimized out>
        source_volume = <optimized out>
#5  0xb754e736 in _clutter_actor_get_paint_volume_real (pv=0xa665e84, self=0xa665cb8) at ./clutter-actor.c:15420
        priv = 0xa665cd8
#6  _clutter_actor_get_paint_volume_mutable (self=0xa665cb8) at ./clutter-actor.c:15496
        priv = 0xa665cd8
#7  0xb7556da4 in _clutter_actor_finish_queue_redraw (self=0xa665cb8, clip=0x0) at ./clutter-actor.c:7203
        priv = <optimized out>
        pv = <optimized out>
        clipped = <optimized out>
#8  0xb75b819e in _clutter_stage_maybe_finish_queue_redraws (stage=<optimized out>) at ./clutter-stage.c:4102
        entry = 0xa6e2ca0
        clip = <optimized out>
        l = 0xa192110
        stolen_list = 0xa192110
#9  _clutter_stage_do_update (stage=0xa061718) at ./clutter-stage.c:1225
        priv = 0xa0619c8
#10 0xb759bb81 in master_clock_update_stages (stages=0xa2121b0, master_clock=0xa05f4e8) at ./clutter-master-clock.c:386
        stages_updated = <optimized out>
        l = 0xa2121b0
        start = 210640279961
#11 clutter_clock_dispatch (source=0xa055c48, callback=0x0, user_data=0x0) at ./clutter-master-clock.c:519
        clock_source = 0xa055c48
        master_clock = 0xa05f4e8
        stage_manager = <optimized out>
        stages_updated = 0
        stages = 0xa2121b0
#12 0xb6b26d86 in g_main_dispatch (context=0x9d82de0) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:2539
        dispatch = 0xb759b930 <clutter_clock_dispatch>
        was_in_call = 0
        user_data = 0x0
        callback = 0x0
        cb_funcs = 0x0
        cb_data = 0x0
        current_source_link = {data = 0xa055c48, next = 0x0}
        need_destroy = <optimized out>
        source = 0xa055c48
        current = 0xa0938c8
        i = <optimized out>
#13 g_main_context_dispatch (context=0x9d82de0) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3075
No locals.
#14 0xb6b27125 in g_main_context_iterate (dispatch=1, block=-1229764016, context=0x9d82de0, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3146
        timeout = 0
        some_ready = 1
        fds = <optimized out>
        max_priority = 150
        nfds = <optimized out>
        allocated_nfds = <optimized out>
#15 g_main_context_iterate (context=0x9d82de0, block=-1229764016, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3083
        some_ready = 1
#16 0xb6b2756b in g_main_loop_run (loop=0x9d82ff0) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3340
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#17 0xb77065c0 in meta_run () from /tmp/apport_sandbox_kqm6Df/usr/lib/libmutter.so.0
No symbol table info available.
#18 0x080520d2 in gala_main (args=0xbfd9af14, args_length1=1) at /build/buildd/gala-0.1/src/Main.vala:61
        result = 0
        _tmp0_ = 0x9d761e0
        ctx = 0x9d761e0
        _tmp4_ = 0x9d80810
        _tmp5_ = 0x0
        _tmp6_ = 165149712
        _tmp7_ = 0
        _inner_error_ = 0x0
#19 0x08052104 in main (argc=2, argv=0xbfd9af14) at /build/buildd/gala-0.1/src/Main.vala:30
No locals.