Core was generated by `/usr/bin/gnome-shell'.
Program terminated with signal SIGSEGV, Segmentation fault.

#0  0x000055585f9416d0 in ?? ()
#1  0x00007f946e272741 in intel_update_image_buffers (drawable=0x55585ff03fa0, brw=0x55585dba2530) at ../../../../../../src/mesa/drivers/dri/i965/brw_context.c:1751
#2  intel_update_renderbuffers (context=context@entry=0x55585dbc0e50, drawable=drawable@entry=0x55585ff03fa0) at ../../../../../../src/mesa/drivers/dri/i965/brw_context.c:1427
#3  0x00007f946e272dc1 in intel_prepare_render (brw=brw@entry=0x55585dba2530) at ../../../../../../src/mesa/drivers/dri/i965/brw_context.c:1448
#4  0x00007f946e26e00c in brw_clear () at ../../../../../../src/mesa/drivers/dri/i965/brw_clear.c:300
#5  0x00007f94854d69db in _cogl_framebuffer_gl_clear (framebuffer=0x55585f03b400, buffers=<optimized out>, red=<optimized out>, green=<optimized out>, blue=<optimized out>, 
    alpha=<optimized out>) at driver/gl/cogl-framebuffer-gl.c:1022
#6  0x00007f948551d592 in cogl_framebuffer_clear4f (framebuffer=framebuffer@entry=0x55585f03b400, buffers=buffers@entry=1, red=0, green=0, green@entry=3.06155688e-41, blue=0, 
    blue@entry=3.31609189e+19, alpha=0, alpha@entry=3.06155688e-41) at cogl-framebuffer.c:388
#7  0x00007f948551d878 in cogl_framebuffer_clear (framebuffer=framebuffer@entry=0x55585f03b400, buffers=buffers@entry=1, color=color@entry=0x7ffd2fec7460) at cogl-framebuffer.c:457
#8  0x00007f9485bc47eb in _st_create_shadow_pipeline_from_actor (shadow_spec=0x7f94680f5a10, actor=0x55585fb31070) at ../src/st/st-private.c:472
#9  0x00007f9485bc206c in st_icon_update_shadow_pipeline (icon=icon@entry=0x55585f25ac90) at ../src/st/st-icon.c:278
#10 0x00007f9485bc20f8 in st_icon_finish_update (icon=icon@entry=0x55585f25ac90) at ../src/st/st-icon.c:310
#11 0x00007f9485bc22d8 in st_icon_update (icon=0x55585f25ac90) at ../src/st/st-icon.c:381
#12 0x00007f94876470b0 in _g_closure_invoke_va (closure=0x55585e23a410, return_value=0x0, instance=0x55585f25ac90, args=0x7ffd2fec7740, n_params=0, param_types=0x0)
    at ../../../../gobject/gclosure.c:867
#13 0x00007f94876626df in g_signal_emit_valist (instance=0x55585f25ac90, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffd2fec7740)
    at ../../../../gobject/gsignal.c:3300
#14 0x00007f9487662e0f in g_signal_emit (instance=instance@entry=0x55585f25ac90, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
#15 0x00007f9485bdca03 in st_widget_recompute_style (widget=widget@entry=0x55585f25ac90, old_theme_node=old_theme_node@entry=0x55585f42f110) at ../src/st/st-widget.c:1659
#16 0x00007f9485bdcbab in st_widget_style_changed (widget=0x55585f25ac90) at ../src/st/st-widget.c:553
#17 0x00007f9485bdcc84 in notify_children_of_style_change (self=<optimized out>) at ../src/st/st-widget.c:525
#18 0x00007f94876470b0 in _g_closure_invoke_va (closure=0x55585e23a410, return_value=0x0, instance=0x55585f2530a0, args=0x7ffd2fec7b10, n_params=0, param_types=0x0)
    at ../../../../gobject/gclosure.c:867
#19 0x00007f94876626df in g_signal_emit_valist (instance=0x55585f2530a0, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffd2fec7b10)
    at ../../../../gobject/gsignal.c:3300
#20 0x00007f9487662e0f in g_signal_emit (instance=instance@entry=0x55585f2530a0, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
#21 0x00007f9485bdca03 in st_widget_recompute_style (widget=widget@entry=0x55585f2530a0, old_theme_node=old_theme_node@entry=0x55585f2011d0) at ../src/st/st-widget.c:1659
#22 0x00007f9485bdcbab in st_widget_style_changed (widget=0x55585f2530a0) at ../src/st/st-widget.c:553
#23 0x00007f9485bdcc84 in notify_children_of_style_change (self=<optimized out>) at ../src/st/st-widget.c:525
#24 0x00007f94876470b0 in _g_closure_invoke_va (closure=0x55585e23a410, return_value=0x0, instance=0x55585f16b050, args=0x7ffd2fec7ee0, n_params=0, param_types=0x0)
    at ../../../../gobject/gclosure.c:867
#25 0x00007f94876626df in g_signal_emit_valist (instance=0x55585f16b050, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffd2fec7ee0)
    at ../../../../gobject/gsignal.c:3300
#26 0x00007f9487662e0f in g_signal_emit (instance=instance@entry=0x55585f16b050, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
#27 0x00007f9485bdca03 in st_widget_recompute_style (widget=widget@entry=0x55585f16b050, old_theme_node=old_theme_node@entry=0x55585f953920) at ../src/st/st-widget.c:1659
#28 0x00007f9485bdcbab in st_widget_style_changed (widget=0x55585f16b050) at ../src/st/st-widget.c:553
#29 0x00007f9485bdcc84 in notify_children_of_style_change (self=<optimized out>) at ../src/st/st-widget.c:525
#30 0x00007f9487646e81 in g_closure_invoke (closure=0x55585e23a410, return_value=0x0, n_param_values=1, param_values=0x7ffd2fec8250, invocation_hint=0x7ffd2fec81d0)
    at ../../../../gobject/gclosure.c:804
#31 0x00007f9487659ac8 in signal_emit_unlocked_R (node=node@entry=0x55585e1ddae0, detail=detail@entry=0, instance=instance@entry=0x55585f1668e0, emission_return=emission_return@entry=0x0, 
    instance_and_params=instance_and_params@entry=0x7ffd2fec8250) at ../../../../gobject/gsignal.c:3673
#32 0x00007f94876623f5 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffd2fec8410)
    at ../../../../gobject/gsignal.c:3391
#33 0x00007f9487662e0f in g_signal_emit (instance=instance@entry=0x55585f1668e0, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
#34 0x00007f9485bdca03 in st_widget_recompute_style (widget=widget@entry=0x55585f1668e0, old_theme_node=old_theme_node@entry=0x55585f3f9b00) at ../src/st/st-widget.c:1659
#35 0x00007f9485bdcbab in st_widget_style_changed (widget=0x55585f1668e0) at ../src/st/st-widget.c:553
#36 0x00007f9485bdcc84 in notify_children_of_style_change (self=<optimized out>) at ../src/st/st-widget.c:525
#37 0x00007f94876470b0 in _g_closure_invoke_va (closure=0x55585e23a410, return_value=0x0, instance=0x55585f1789a0, args=0x7ffd2fec87e0, n_params=0, param_types=0x0)
    at ../../../../gobject/gclosure.c:867
#38 0x00007f94876626df in g_signal_emit_valist (instance=0x55585f1789a0, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffd2fec87e0)
    at ../../../../gobject/gsignal.c:3300
#39 0x00007f9487662e0f in g_signal_emit (instance=instance@entry=0x55585f1789a0, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
#40 0x00007f9485bdca03 in st_widget_recompute_style (widget=widget@entry=0x55585f1789a0, old_theme_node=old_theme_node@entry=0x55585f3f9cd0) at ../src/st/st-widget.c:1659
#41 0x00007f9485bdcbab in st_widget_style_changed (widget=0x55585f1789a0) at ../src/st/st-widget.c:553
#42 0x00007f9485bdcc84 in notify_children_of_style_change (self=<optimized out>) at ../src/st/st-widget.c:525
#43 0x00007f94876470b0 in _g_closure_invoke_va (closure=0x55585e23a410, return_value=0x0, instance=0x55585eb6cd60, args=0x7ffd2fec8bb0, n_params=0, param_types=0x0)
    at ../../../../gobject/gclosure.c:867
#44 0x00007f94876626df in g_signal_emit_valist (instance=0x55585eb6cd60, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffd2fec8bb0)
    at ../../../../gobject/gsignal.c:3300
#45 0x00007f9487662e0f in g_signal_emit (instance=instance@entry=0x55585eb6cd60, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
#46 0x00007f9485bdca03 in st_widget_recompute_style (widget=widget@entry=0x55585eb6cd60, old_theme_node=old_theme_node@entry=0x5558606b41d0) at ../src/st/st-widget.c:1659
#47 0x00007f9485bdcbab in st_widget_style_changed (widget=0x55585eb6cd60) at ../src/st/st-widget.c:553
#48 0x00007f9485bdcc84 in notify_children_of_style_change (self=<optimized out>) at ../src/st/st-widget.c:525
#49 0x00007f94876470b0 in _g_closure_invoke_va (closure=0x55585e23a410, return_value=0x0, instance=0x55585eb5c260, args=0x7ffd2fec8f80, n_params=0, param_types=0x0)
    at ../../../../gobject/gclosure.c:867
#50 0x00007f94876626df in g_signal_emit_valist (instance=0x55585eb5c260, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffd2fec8f80)
    at ../../../../gobject/gsignal.c:3300
#51 0x00007f9487662e0f in g_signal_emit (instance=instance@entry=0x55585eb5c260, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
#52 0x00007f9485bdca03 in st_widget_recompute_style (widget=widget@entry=0x55585eb5c260, old_theme_node=old_theme_node@entry=0x55585f33a040) at ../src/st/st-widget.c:1659
#53 0x00007f9485bdcbab in st_widget_style_changed (widget=0x55585eb5c260) at ../src/st/st-widget.c:553
#54 0x00007f9485bdcc84 in notify_children_of_style_change (self=<optimized out>) at ../src/st/st-widget.c:525
#55 0x00007f94876470b0 in _g_closure_invoke_va (closure=0x55585e23a410, return_value=0x0, instance=0x55585e7ea640, args=0x7ffd2fec9350, n_params=0, param_types=0x0)
    at ../../../../gobject/gclosure.c:867
#56 0x00007f94876626df in g_signal_emit_valist (instance=0x55585e7ea640, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffd2fec9350)
    at ../../../../gobject/gsignal.c:3300
#57 0x00007f9487662e0f in g_signal_emit (instance=instance@entry=0x55585e7ea640, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
#58 0x00007f9485bdca03 in st_widget_recompute_style (widget=widget@entry=0x55585e7ea640, old_theme_node=old_theme_node@entry=0x55585e03b5f0) at ../src/st/st-widget.c:1659
#59 0x00007f9485bdcbab in st_widget_style_changed (widget=0x55585e7ea640) at ../src/st/st-widget.c:553
#60 0x00007f9485bdcc84 in notify_children_of_style_change (self=<optimized out>) at ../src/st/st-widget.c:525
#61 0x00007f94876471a6 in _g_closure_invoke_va (closure=0x55585e23a410, return_value=0x0, instance=0x55585e7d3d70, args=0x7ffd2fec9720, n_params=0, param_types=0x0)
    at ../../../../gobject/gclosure.c:867
#62 0x00007f94876626df in g_signal_emit_valist (instance=0x55585e7d3d70, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffd2fec9720)
    at ../../../../gobject/gsignal.c:3300
#63 0x00007f9487662e0f in g_signal_emit (instance=instance@entry=0x55585e7d3d70, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
#64 0x00007f9485bdca03 in st_widget_recompute_style (widget=widget@entry=0x55585e7d3d70, old_theme_node=old_theme_node@entry=0x5558606b7060) at ../src/st/st-widget.c:1659
#65 0x00007f9485bdcbab in st_widget_style_changed (widget=0x55585e7d3d70) at ../src/st/st-widget.c:553
#66 0x00007f9485bdcc84 in notify_children_of_style_change (self=<optimized out>) at ../src/st/st-widget.c:525
#67 0x00007f94876471a6 in _g_closure_invoke_va (closure=0x55585e7eb470, return_value=0x0, instance=0x55585e1ca240, args=0x7ffd2fec9af0, n_params=0, param_types=0x0)
    at ../../../../gobject/gclosure.c:867
#68 0x00007f94876626df in g_signal_emit_valist (instance=0x55585e1ca240, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffd2fec9af0)
    at ../../../../gobject/gsignal.c:3300
#69 0x00007f9487662e0f in g_signal_emit (instance=instance@entry=0x55585e1ca240, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
#70 0x00007f9485bcc640 in st_theme_context_changed (context=0x55585e1ca240) at ../src/st/st-theme-context.c:228
#71 0x00007f9487646f6d in g_closure_invoke (closure=0x55585e23f7d0, return_value=0x0, n_param_values=1, param_values=0x7ffd2fec9db0, invocation_hint=0x7ffd2fec9d30)
    at ../../../../gobject/gclosure.c:804
#72 0x00007f9487659d3e in signal_emit_unlocked_R (node=node@entry=0x7f9468010eb0, detail=detail@entry=0, instance=instance@entry=0x55585da43140, emission_return=emission_return@entry=0x0, 
    instance_and_params=instance_and_params@entry=0x7ffd2fec9db0) at ../../../../gobject/gsignal.c:3635
#73 0x00007f94876623f5 in g_signal_emit_valist (instance=instance@entry=0x55585da43140, signal_id=signal_id@entry=53, detail=<optimized out>, var_args=var_args@entry=0x7ffd2fec9fb8)
    at ../../../../gobject/gsignal.c:3391
#74 0x00007f94876632e8 in g_signal_emit_by_name (instance=0x55585da43140, detailed_signal=0x7f94862a3f41 "resolution-changed") at ../../../../gobject/gsignal.c:3487
#75 0x00007f948764ee8e in object_set_property (nqueue=0x55585e43ad50, value=0x7ffd2feca120, pspec=0x55585da61850, object=0x55585da67910) at ../../../../gobject/gobject.c:1441
#76 g_object_set_valist (object=object@entry=0x55585da67910, first_property_name=first_property_name@entry=0x7f9485ef9972 "font-dpi", var_args=var_args@entry=0x7ffd2feca1f0)
    at ../../../../gobject/gobject.c:2302
#77 0x00007f948764f86c in g_object_set (_object=0x55585da67910, first_property_name=first_property_name@entry=0x7f9485ef9972 "font-dpi") at ../../../../gobject/gobject.c:2467
#78 0x00007f9485e59b0e in update_font_dpi (settings=settings@entry=0x7f9468006c00) at backends/meta-settings.c:178
#79 0x00007f9485e59c99 in meta_settings_update_font_dpi (settings=0x7f9468006c00) at backends/meta-settings.c:193
#80 0x00007f9487646f6d in g_closure_invoke (closure=0x55585da5a920, return_value=0x0, n_param_values=1, param_values=0x7ffd2feca4d0, invocation_hint=0x7ffd2feca450)
    at ../../../../gobject/gclosure.c:804
#81 0x00007f9487659d3e in signal_emit_unlocked_R (node=node@entry=0x55585da49d80, detail=detail@entry=0, instance=instance@entry=0x7f9468006c00, emission_return=emission_return@entry=0x0, 
    instance_and_params=instance_and_params@entry=0x7ffd2feca4d0) at ../../../../gobject/gsignal.c:3635
#82 0x00007f94876623f5 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffd2feca690)
    at ../../../../gobject/gsignal.c:3391
#83 0x00007f9487662e0f in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at ../../../../gobject/gsignal.c:3447
#84 0x00007f9487646f6d in g_closure_invoke (closure=0x55585dd03d70, return_value=0x0, n_param_values=1, param_values=0x7ffd2feca930, invocation_hint=0x7ffd2feca8b0)
    at ../../../../gobject/gclosure.c:804
#85 0x00007f94876598d1 in signal_emit_unlocked_R (node=node@entry=0x55585da62ed0, detail=detail@entry=0, instance=instance@entry=0x55585da640f0, emission_return=emission_return@entry=0x0, 
    instance_and_params=instance_and_params@entry=0x7ffd2feca930) at ../../../../gobject/gsignal.c:3705
#86 0x00007f94876623f5 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffd2fecaaf0)
    at ../../../../gobject/gsignal.c:3391
#87 0x00007f9487662e0f in g_signal_emit (instance=instance@entry=0x55585da640f0, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
#88 0x00007f9485e54069 in meta_monitor_manager_notify_monitors_changed (manager=manager@entry=0x55585da640f0) at backends/meta-monitor-manager.c:2649
#89 0x00007f9485e56357 in meta_monitor_manager_rebuild (manager=0x55585da640f0, config=0x0) at backends/meta-monitor-manager.c:2726
#90 0x00007f9485ee33f5 in meta_monitor_manager_kms_apply_monitors_config (manager=0x55585da640f0, config=<optimized out>, method=<optimized out>, error=<optimized out>)
    at backends/native/meta-monitor-manager-kms.c:300
#91 0x00007f9485e540ac in meta_monitor_manager_apply_monitors_config (manager=0x55585da640f0, config=0x0, method=META_MONITORS_CONFIG_METHOD_TEMPORARY, error=<optimized out>)
    at backends/meta-monitor-manager.c:457
#92 0x00007f9485e55232 in meta_monitor_manager_ensure_configured (manager=0x55585da640f0) at backends/meta-monitor-manager.c:620
#93 0x00007f9483821fce in ffi_call_unix64 () at ../src/x86/unix64.S:76
#94 0x00007f948382193f in ffi_call (cif=cif@entry=0x7ffd2fecaf10, fn=fn@entry=0x7f9485ee37f0 <on_uevent>, rvalue=<optimized out>, avalue=avalue@entry=0x7ffd2fecae20)
    at ../src/x86/ffi64.c:525
#95 0x00007f9487647761 in g_cclosure_marshal_generic (closure=0x55585da77020, return_gvalue=0x0, n_param_values=<optimized out>, param_values=<optimized out>, 
    invocation_hint=<optimized out>, marshal_data=<optimized out>) at ../../../../gobject/gclosure.c:1490
#96 0x00007f9487646f6d in g_closure_invoke (closure=0x55585da77020, return_value=0x0, n_param_values=3, param_values=0x7ffd2fecb140, invocation_hint=0x7ffd2fecb0c0)
    at ../../../../gobject/gclosure.c:804
#97 0x00007f9487659d3e in signal_emit_unlocked_R (node=node@entry=0x55585da68a90, detail=detail@entry=0, instance=instance@entry=0x55585da637a0, emission_return=emission_return@entry=0x0, 
    instance_and_params=instance_and_params@entry=0x7ffd2fecb140) at ../../../../gobject/gsignal.c:3635
#98 0x00007f94876623f5 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffd2fecb330)
    at ../../../../gobject/gsignal.c:3391
#99 0x00007f9487662e0f in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at ../../../../gobject/gsignal.c:3447
#100 0x00007f947ca76c14 in ?? () from /usr/lib/x86_64-linux-gnu/libgudev-1.0.so.0
#101 0x00007f948736d0f5 in g_main_dispatch (context=0x55585da2c4e0) at ../../../../glib/gmain.c:3177
#102 g_main_context_dispatch (context=context@entry=0x55585da2c4e0) at ../../../../glib/gmain.c:3830
#103 0x00007f948736d4c0 in g_main_context_iterate (context=0x55585da2c4e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3903
#104 0x00007f948736d7d2 in g_main_loop_run (loop=0x55585dcf7300) at ../../../../glib/gmain.c:4099
#105 0x00007f9485e8acbc in meta_run () at core/main.c:664
#106 0x000055585c70688c in main (argc=<optimized out>, argv=<optimized out>) at ../src/main.c:525