.
Thread 4 (Thread 0x7f25cffff700 (LWP 3065)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:215
No locals.
#1  0x00007f2612c9d9d5 in g_cond_wait_until (cond=cond@entry=0x7f261756c238, mutex=mutex@entry=0x7f261756c230, end_time=end_time@entry=1140895516) at /build/buildd/glib2.0-2.33.10/./glib/gthread-posix.c:855
        ts = {tv_sec = 1140, tv_nsec = 895516000}
        status = <optimized out>
#2  0x00007f2612c37581 in g_async_queue_pop_intern_unlocked (queue=0x7f261756c230, wait=wait@entry=1, end_time=1140895516) at /build/buildd/glib2.0-2.33.10/./glib/gasyncqueue.c:424
        retval = <optimized out>
        __PRETTY_FUNCTION__ = "g_async_queue_pop_intern_unlocked"
#3  0x00007f2612c37c28 in g_async_queue_timeout_pop_unlocked (queue=<optimized out>, timeout=timeout@entry=500000) at /build/buildd/glib2.0-2.33.10/./glib/gasyncqueue.c:572
        end_time = <optimized out>
#4  0x00007f2612c8481a in g_thread_pool_wait_for_new_task (pool=0x7f261754cad0) at /build/buildd/glib2.0-2.33.10/./glib/gthreadpool.c:264
        task = <optimized out>
#5  g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.33.10/./glib/gthreadpool.c:298
        task = 0x7f2617830f50
        pool = 0x7f261754cad0
#6  0x00007f2612c84115 in g_thread_proxy (data=0x7f25fc002a80) at /build/buildd/glib2.0-2.33.10/./glib/gthread.c:801
        thread = 0x7f25fc002a80
#7  0x00007f2612a03e9a in start_thread (arg=0x7f25cffff700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f25cffff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -6460872153820693165, 139801383156176, 139800380176832, 0, 3, 6349443246903393619, 6348521047017258323}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007f261273139d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#9  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 3 (Thread 0x7f2609d9f700 (LWP 3061)):
#0  0x00007f26127259e3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007f2612c61084 in g_main_context_poll (n_fds=1, fds=0x7f25fc0010c0, timeout=-1, context=0x7f26166f5c40, priority=<optimized out>) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:3576
        poll_func = 0x7f2612c6f130 <g_poll>
#2  g_main_context_iterate (context=context@entry=0x7f26166f5c40, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:3277
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = <optimized out>
        fds = 0x7f25fc0010c0
#3  0x00007f2612c611a4 in g_main_context_iteration (context=context@entry=0x7f26166f5c40, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:3343
        retval = <optimized out>
#4  0x00007f2609da635d in dconf_gdbus_worker_thread (user_data=0x7f26166f5c40) at dconf-gdbus-thread.c:81
        context = 0x7f26166f5c40
#5  0x00007f2612c84115 in g_thread_proxy (data=0x7f26166f2c50) at /build/buildd/glib2.0-2.33.10/./glib/gthread.c:801
        thread = 0x7f26166f2c50
#6  0x00007f2612a03e9a in start_thread (arg=0x7f2609d9f700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f2609d9f700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -6460872153820693165, 140735228461888, 139801350764992, 0, 3, 6348470952206925139, 6348521047017258323}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f261273139d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#8  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 0x7f260bc84700 (LWP 3060)):
#0  0x00007f26127259e3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007f2612c61084 in g_main_context_poll (n_fds=3, fds=0x7f26040010e0, timeout=-1, context=0x7f26165e5420, priority=<optimized out>) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:3576
        poll_func = 0x7f2612c6f130 <g_poll>
#2  g_main_context_iterate (context=0x7f26165e5420, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:3277
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 3
        allocated_nfds = <optimized out>
        fds = 0x7f26040010e0
#3  0x00007f2612c614e2 in g_main_loop_run (loop=0x7f26165e53b0) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:3476
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007f2613994f56 in gdbus_shared_thread_func (user_data=0x7f26165e53f0) at /build/buildd/glib2.0-2.33.10/./gio/gdbusprivate.c:277
        data = 0x7f26165e53f0
#5  0x00007f2612c84115 in g_thread_proxy (data=0x7f2616624cf0) at /build/buildd/glib2.0-2.33.10/./glib/gthread.c:801
        thread = 0x7f2616624cf0
#6  0x00007f2612a03e9a in start_thread (arg=0x7f260bc84700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f260bc84700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -6460872153820693165, 140735228461088, 139801383160256, 0, 3, 6348466415110847827, 6348521047017258323}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f261273139d 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 0x7f26152ed940 (LWP 3059)):
#0  0x00007f2612675405 in __GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        resultvar = 0
        pid = <optimized out>
        selftid = 3059
#1  0x00007f2612678b6b in __GI_abort () at abort.c:91
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x7f26086c56c6, sa_sigaction = 0x7f26086c56c6}, sa_mask = {__val = {139801495572605, 1, 4, 140735228461024, 139801494472642, 139801326802630, 206158430232, 140735228461040, 140735228460816, 139801192787246, 206158430256, 139801580234640, 139801497917248, 139801540668432, 1, 140735228471686}}, sa_flags = 310079619, sa_restorer = 0x7f26086c56b2}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007f261266e0ce in __assert_fail_base (fmt=<optimized out>, assertion=0x7f26086c56c6 "(*tail)->need == need", file=0x7f26086c56b2 "intel_resolve_map.c", line=<optimized out>, function=<optimized out>) at assert.c:94
        str = 0x7f2617876790 "\230W\237\022&\177"
        total = 4096
#3  0x00007f261266e172 in __GI___assert_fail (assertion=assertion@entry=0x7f26086c56c6 "(*tail)->need == need", file=file@entry=0x7f26086c56b2 "intel_resolve_map.c", line=line@entry=46, function=function@entry=0x7f26086c56e0 "intel_resolve_map_set") at assert.c:103
No locals.
#4  0x00007f260864975b in intel_resolve_map_set (head=<optimized out>, level=0, layer=0, need=need@entry=GEN6_HIZ_OP_DEPTH_RESOLVE) at intel_resolve_map.c:46
        tail = <optimized out>
        prev = <optimized out>
        __PRETTY_FUNCTION__ = "intel_resolve_map_set"
#5  0x00007f2608647ceb in intel_miptree_slice_set_needs_depth_resolve (mt=<optimized out>, level=<optimized out>, layer=<optimized out>) at intel_mipmap_tree.c:890
No locals.
#6  0x00007f26086463bd in intel_renderbuffer_set_needs_depth_resolve (irb=irb@entry=0x7f261783a5e0) at intel_fbo.c:908
No locals.
#7  0x00007f260865ae81 in brw_postdraw_set_buffers_need_resolve (brw=0x7f2616731510) at brw_draw.c:350
        ctx = 0x7f2616731510
        fb = <optimized out>
        front_irb = <optimized out>
        depth_irb = 0x7f261783a5e0
        intel = 0x7f2616731510
        back_irb = 0x7f261783a530
#8  brw_try_draw_prims (max_index=<optimized out>, min_index=<optimized out>, ib=0x0, nr_prims=1, prim=0x7fff794cc180, arrays=0x7f26167c0f68, ctx=0x7f2616731510) at brw_draw.c:539
        retval = true
        i = <optimized out>
        fail_next = <optimized out>
#9  brw_draw_prims (ctx=0x7f2616731510, prim=0x7fff794cc180, nr_prims=1, ib=0x0, index_bounds_valid=<optimized out>, min_index=0, max_index=7, tfb_vertcount=0x0) at brw_draw.c:583
        arrays = 0x7f26167c0f68
        retval = true
#10 0x00007f26081c17f4 in vbo_draw_arrays (ctx=0x7f2616731510, mode=7, start=0, count=8, numInstances=1, baseInstance=<optimized out>) at ../../../../../src/mesa/vbo/vbo_exec_array.c:645
        vbo = 0x7f26167bd9f0
        exec = 0x7f26167be638
        prim = {{mode = 7, indexed = 0, begin = 1, end = 1, weak = 0, no_current_update = 0, pad = 0, start = 0, count = 8, basevertex = 0, num_instances = 1, base_instance = 0}, {mode = 0, indexed = 0, begin = 0, end = 0, weak = 0, no_current_update = 0, pad = 0, start = 0, count = 0, basevertex = 0, num_instances = 0, base_instance = 0}}
#11 0x00007f26120b785b in _cogl_journal_flush_modelview_and_entries (data=0x7fff794cc310, batch_len=<optimized out>, batch_start=<optimized out>) at ./cogl-journal.c:315
        state = 0x7fff794cc310
        framebuffer = 0x7f261783a340
        draw_flags = <optimized out>
        ctx = 0x7f26173bd890
        attributes = 0x7f2617776560
#12 _cogl_journal_flush_pipeline_and_entries (batch_start=<optimized out>, batch_len=<optimized out>, data=0x7fff794cc310) at ./cogl-journal.c:467
        state = 0x7fff794cc310
        ctx = <optimized out>
#13 0x00007f26120b7533 in _cogl_journal_flush_vbo_offsets_and_entries (batch_start=0x7f2618a9b2c0, batch_len=<optimized out>, data=0x7fff794cc310) at ./cogl-journal.c:667
        state = 0x7fff794cc310
        ctx = 0x7f26173bd890
        stride = 32
        i = <optimized out>
        attribute_entry = 0x7f2617776568
#14 0x00007f26120b73c6 in _cogl_journal_flush_clip_stacks_and_entries (batch_start=0x7f2618a9b2c0, batch_len=2, data=0x7fff794cc310) at ./cogl-journal.c:746
        state = 0x7fff794cc310
        ctx = 0x7f26173bd890
#15 0x00007f26120b85ac in _cogl_journal_flush (journal=<optimized out>) at ./cogl-journal.c:1452
        state = {journal = 0x7f261767d590, attribute_buffer = 0x7f26178818f0, attributes = 0x7f26166b2920, current_attribute = 1, stride = 32, array_offset = 0, current_vertex = 0, indices = 0x9b306e612bbfb300, indices_type_size = 8589934594, modelview_stack = 0x7f261757a180, projection_stack = 0x7f261757e240, pipeline = 0x7f26166223a0}
        i = <optimized out>
        modelview_stack = <optimized out>
        ctx = <optimized out>
#16 0x00007f26120b977c in _cogl_framebuffer_flush_journal (framebuffer=<optimized out>) at ./cogl-framebuffer.c:639
No locals.
#17 0x00007f2612083178 in cogl_flush () at ./cogl.c:364
        l = 0x7f261782f4e0
        ctx = <optimized out>
#18 0x00007f26120bb010 in cogl_framebuffer_set_dither_enabled (framebuffer=framebuffer@entry=0x7f261783a340, dither_enabled=dither_enabled@entry=1) at ./cogl-framebuffer.c:1787
No locals.
#19 0x00007f2612398fa7 in _clutter_stage_do_pick (stage=0x7f261781c390, x=<optimized out>, y=<optimized out>, mode=mode@entry=CLUTTER_PICK_REACTIVE) at ./clutter-stage.c:1567
        priv = <optimized out>
        context = 0x7f261670eb20
        pixel = "\000\000\004\377"
        stage_pick_id = {red = 255 '\377', green = 255 '\377', blue = 255 '\377', alpha = 255 '\377', padding0 = 32550, padding1 = 353452597, padding2 = 32550}
        dither_enabled_save = 1
        fb = 0x7f261783a340
        actor = <optimized out>
        is_clipped = <optimized out>
        __PRETTY_FUNCTION__ = "_clutter_stage_do_pick"
#20 0x00007f26123990ed in clutter_stage_get_actor_at_pos (stage=<optimized out>, pick_mode=pick_mode@entry=CLUTTER_PICK_REACTIVE, x=<optimized out>, y=<optimized out>) at ./clutter-stage.c:2892
No locals.
#21 0x00007f26148d1078 in pick_embedded_child (offscreen_window=offscreen_window@entry=0x7f26177c95a0, widget_x=<optimized out>, widget_y=<optimized out>, embed=embed@entry=0x7f26175966c0) at ./gtk-clutter-embed.c:192
        priv = <optimized out>
        a = <optimized out>
        widget = <optimized out>
#22 0x00007f2613f93d4b in _gdk_marshal_OBJECT__DOUBLE_DOUBLE (closure=0x7f2617838a00, return_value=0x7fff794cc630, n_param_values=<optimized out>, param_values=0x7fff794cc6e0, invocation_hint=<optimized out>, marshal_data=<optimized out>) at /build/buildd/gtk+3.0-3.5.12/./gdk/gdkmarshalers.c:165
        callback = 0x7f26148d1030 <pick_embedded_child>
        cc = <optimized out>
        data1 = 0x7f26177c95a0
        data2 = 0x7f26175966c0
        v_return = <optimized out>
        __PRETTY_FUNCTION__ = "_gdk_marshal_OBJECT__DOUBLE_DOUBLE"
#23 0x00007f2612f20040 in g_closure_invoke (closure=0x7f2617838a00, return_value=0x7fff794cc630, n_param_values=3, param_values=0x7fff794cc6e0, invocation_hint=0x7fff794cc680) at /build/buildd/glib2.0-2.33.10/./gobject/gclosure.c:777
        marshal = 0x7f2613f93c90 <_gdk_marshal_OBJECT__DOUBLE_DOUBLE>
        marshal_data = 0x0
        in_marshal = 0
        real_closure = 0x7f26178389e0
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#24 0x00007f2612f31d10 in signal_emit_unlocked_R (node=node@entry=0x7f26165f8510, detail=detail@entry=0, instance=instance@entry=0x7f26177c95a0, emission_return=emission_return@entry=0x7fff794cc7d0, instance_and_params=instance_and_params@entry=0x7fff794cc6e0) at /build/buildd/glib2.0-2.33.10/./gobject/gsignal.c:3551
        tmp = <optimized out>
        handler = 0x7f2617835400
        accumulator = 0x7f26165f3b20
        emission = {next = 0x0, instance = 0x7f26177c95a0, ihint = {signal_id = 130, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
        class_closure = 0x7f26165f3db0
        hlist = 0x7f2617835400
        handler_list = 0x7f2617835400
        return_accu = 0x7fff794cc630
        accu = {g_type = 139801560561616, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        signal_id = 130
        max_sequential_handler_number = 1267
        return_value_altered = 0
#25 0x00007f2612f3971a in g_signal_emit_valist (instance=0x7f26177c95a0, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fff794cc958) at /build/buildd/glib2.0-2.33.10/./gobject/gsignal.c:3310
        return_value = {g_type = 139801560561616, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        error = 0x0
        rtype = 139801560561616
        static_scope = 0
        instance_and_params = 0x7fff794cc6e0
        signal_return_type = 139801560561616
        param_values = 0x7fff794cc6f8
        node = 0x7f26165f8510
        i = <optimized out>
        n_params = 2
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#26 0x00007f2612f3a1f2 in g_signal_emit (instance=instance@entry=0x7f26177c95a0, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.33.10/./gobject/gsignal.c:3356
        var_args = {{gp_offset = 24, fp_offset = 80, overflow_arg_area = 0x7fff794cca30, reg_save_area = 0x7fff794cc970}}
#27 0x00007f2613f8ab8e in pick_embedded_child (y=<optimized out>, x=<optimized out>, window=0x7f26177c95a0) at /build/buildd/gtk+3.0-3.5.12/./gdk/gdkwindow.c:7892
        res = 0x0
#28 _gdk_window_find_descendant_at (window=0x7f26177c95a0, x=476, x@entry=500, y=168, y@entry=235, found_x=found_x@entry=0x0, found_y=found_y@entry=0x0) at /build/buildd/gtk+3.0-3.5.12/./gdk/gdkwindow.c:7977
        sub = <optimized out>
        child_x = 476
        child_y = 168
        l = 0x0
        found = 0
#29 0x00007f2613f8ac74 in get_pointer_window (display=display@entry=0x7f26165f1020, event_window=event_window@entry=0x7f26165fb5a0, device=device@entry=0x7f26165c3880, toplevel_x=500, toplevel_y=235, serial=serial@entry=2852) at /build/buildd/gtk+3.0-3.5.12/./gdk/gdkwindow.c:8629
        pointer_window = <optimized out>
        grab = <optimized out>
        pointer_info = <optimized out>
#30 0x00007f2613f8d0ba in do_synthesize_crossing_event (data=0x7f26165fb5a0) at /build/buildd/gtk+3.0-3.5.12/./gdk/gdkwindow.c:9088
        new_window_under_pointer = <optimized out>
        pointer_info = 0x7f26165b0740
        device = 0x7f26165c3880
        iter = {dummy1 = 0x7f26165d4920, dummy2 = 0x7f261786cb00, dummy3 = 0x7f2612f0e9a0, dummy4 = 5, dummy5 = 32550, dummy6 = 0x7f2600000001}
        key = 0x7f26165c3880
        value = 0x7f26165b0740
        serial = 2852
        display = 0x7f26165f1020
#31 do_synthesize_crossing_event (data=0x7f26165fb5a0) at /build/buildd/gtk+3.0-3.5.12/./gdk/gdkwindow.c:9061
        changed_toplevel = 0x7f26165fb5a0
#32 0x00007f2613f74ef0 in gdk_threads_dispatch (data=0x7f261786cb00) at /build/buildd/gtk+3.0-3.5.12/./gdk/gdk.c:788
        dispatch = 0x7f261786cb00
        ret = 0
#33 0x00007f2612c60db5 in g_main_dispatch (context=0x7f26165dc060) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:2707
        dispatch = 0x7f2612c5e200 <g_idle_dispatch>
        was_in_call = 0
        user_data = 0x7f261786cb00
        callback = 0x7f2613f74ec0 <gdk_threads_dispatch>
        cb_funcs = 0x7f2612f0e9a0
        cb_data = 0x7f26176f41e0
        current_source_link = {data = 0x7f2618a1a7a0, next = 0x0}
        need_destroy = <optimized out>
        source = 0x7f2618a1a7a0
        current = 0x7f261662cd30
        i = <optimized out>
#34 g_main_context_dispatch (context=context@entry=0x7f26165dc060) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:3211
No locals.
#35 0x00007f2612c610e8 in g_main_context_iterate (context=context@entry=0x7f26165dc060, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:3282
        max_priority = -1
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = <optimized out>
        fds = 0x7f261758e760
#36 0x00007f2612c611a4 in g_main_context_iteration (context=0x7f26165dc060, context@entry=0x0, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:3343
        retval = <optimized out>
#37 0x00007f2613960efc in g_application_run (application=0x7f26173df670, argc=argc@entry=1, argv=argv@entry=0x7fff794cce08) at /build/buildd/glib2.0-2.33.10/./gio/gapplication.c:1607
        arguments = 0x7f2617507b70
        status = 0
        i = <optimized out>
        __PRETTY_FUNCTION__ = "g_application_run"
#38 0x00007f261532b8da in main (argc=1, argv=0x7fff794cce08) at control-center.c:207
        shell = <optimized out>
        application = 0x7f26173df670
        status = <optimized out>