#0  0x0000000000000000 in ?? ()
#1  0x00007f8cee7a8fa1 in _swrast_read_rgba_span (ctx=0x1360f80, rb=0x226e4b0, n=<value optimized out>, x=<value optimized out>, 
    y=21, dstType=5126, rgba=0x7f8cedbff010) at swrast/s_span.c:1359
#2  0x00007f8cee7a86a2 in read_rgba_pixels (ctx=0x1360f80, x=2009, y=21, width=16, height=16, format=<value optimized out>, 
    type=5121, packing=0x1370be0, pixels=<value optimized out>) at swrast/s_readpix.c:341
#3  _swrast_ReadPixels (ctx=0x1360f80, x=2009, y=21, width=16, height=16, format=<value optimized out>, type=5121, 
    packing=0x1370be0, pixels=<value optimized out>) at swrast/s_readpix.c:499
#4  0x00007f8cee6bbf99 in radeonReadPixels (ctx=0x1360f80, x=<value optimized out>, y=21, width=16, height=16, format=6406, 
    type=5121, pack=0x1370be0, pixels=0x226e620) at radeon_pixel_read.c:221
#5  0x00007f8cee72d798 in _mesa_ReadPixels (x=<value optimized out>, y=<value optimized out>, width=16, height=16, format=6406, 
    type=5121, pixels=0x226e620) at main/readpix.c:232
#6  0x00007f8cfd86468d in _cogl_read_pixels_with_rowstride (x=<value optimized out>, y=21, width=16, height=16, 
    source=<value optimized out>, format=COGL_PIXEL_FORMAT_A_8, pixels=0x226e620 "", rowstride=16) at ./cogl.c:633
#7  0x00007f8cfd8859cc in get_texture_bits_via_offscreen (texture_handle=0x20bcd00, subtexture_coords=<value optimized out>, 
    virtual_coords=<value optimized out>, user_data=<value optimized out>) at ./cogl-texture.c:1202
#8  texture_get_cb (texture_handle=0x20bcd00, subtexture_coords=<value optimized out>, virtual_coords=<value optimized out>, 
    user_data=<value optimized out>) at ./cogl-texture.c:1316
#9  0x00007f8cfd885284 in _cogl_sub_texture_foreach_cb (handle=0x20bcd00, slice_coords=0x7fff06f8acf0, 
    full_virtual_coords=<value optimized out>, user_data=0x7fff06f8aec0) at ./cogl-sub-texture.c:176
#10 0x00007f8cfd88722a in _cogl_texture_2d_manual_repeat_cb (coords=0x7fff06f8ad80, user_data=<value optimized out>)
    at ./cogl-texture-2d.c:94
#11 0x00007f8cfd8868a1 in _cogl_texture_iterate_manual_repeats (callback=0x7f8cfd887150 <_cogl_texture_2d_manual_repeat_cb>, 
    tx_1=<value optimized out>, ty_1=<value optimized out>, tx_2=<value optimized out>, ty_2=<value optimized out>, 
    user_data=0x7fff06f8add0) at ./cogl-texture.c:376
#12 0x00007f8cfd887141 in _cogl_texture_2d_foreach_sub_texture_in_region (tex=<value optimized out>, virtual_tx_1=0, 
    virtual_ty_1=32768, virtual_tx_2=0.99609375, virtual_ty_2=-1.70141183e+38, callback=<value optimized out>, user_data=0x10)
    at ./cogl-texture-2d.c:120
#13 0x00007f8cfd885210 in _cogl_sub_texture_manual_repeat_cb (coords=<value optimized out>, user_data=0x7fff06f8aec0)
    at ./cogl-sub-texture.c:192
#14 0x00007f8cfd8868a1 in _cogl_texture_iterate_manual_repeats (callback=0x7f8cfd8851c0 <_cogl_sub_texture_manual_repeat_cb>, 
    tx_1=<value optimized out>, ty_1=<value optimized out>, tx_2=<value optimized out>, ty_2=<value optimized out>, 
    user_data=0x7fff06f8aec0) at ./cogl-texture.c:376
#15 0x00007f8cfd884f21 in _cogl_sub_texture_foreach_sub_texture_in_region (tex=<value optimized out>, virtual_tx_1=0, 
    virtual_ty_1=32768, virtual_tx_2=0.99609375, virtual_ty_2=-1.70141183e+38, callback=<value optimized out>, user_data=0x10)
    at ./cogl-sub-texture.c:218
#16 0x00007f8cfd8860ec in cogl_texture_get_data (handle=0x220d770, format=COGL_PIXEL_FORMAT_A_8, rowstride=16, data=0x226e620 "")
    at ./cogl-texture.c:1427
#17 0x00007f8cfe04946a in _st_create_shadow_material (shadow_spec=0x2315150, src_texture=0x220d770) at st/st-private.c:552
#18 0x00007f8cfe0495fa in _st_create_shadow_material_from_actor (shadow_spec=0x2315150, actor=0x7f8ce8039160)
    at st/st-private.c:602
#19 0x00007f8cfe044ea4 in st_icon_update_shadow_material (icon=<value optimized out>) at st/st-icon.c:390
#20 0x00007f8cfe044f30 in st_icon_finish_update (icon=0x1d54380) at st/st-icon.c:425
#21 0x00007f8cfc7af1ef in g_closure_invoke (closure=0x1ad9180, return_value=0x0, n_param_values=1, param_values=0x20fcb80, 
    invocation_hint=0x7fff06f8b1e0) at gclosure.c:767
#22 0x00007f8cfc7c5363 in signal_emit_unlocked_R (node=0x1a88390, detail=<value optimized out>, instance=<value optimized out>, 
    emission_return=<value optimized out>, instance_and_params=<value optimized out>) at gsignal.c:3290
#23 0x00007f8cfc7c6c18 in g_signal_emit_valist (instance=0x1d54380, signal_id=<value optimized out>, detail=0, 
    var_args=0x7fff06f8b3d0) at gsignal.c:2983
#24 0x00007f8cfc7c71a3 in g_signal_emit (instance=0x1360f80, signal_id=36103344, detail=16) at gsignal.c:3040
#25 0x00007f8cfe0649c3 in st_widget_recompute_style (widget=0x1d54380, old_theme_node=0x2023200) at st/st-widget.c:1464
#26 0x00007f8cfe064b0b in st_widget_style_changed (widget=0x1d54380) at st/st-widget.c:509
#27 0x00007f8cfc7af2aa in g_closure_invoke (closure=0x1ad9180, return_value=0x0, n_param_values=<value optimized out>, 
    param_values=0x19be4e0, invocation_hint=0x7fff06f8b630) at gclosure.c:767
#28 0x00007f8cfc7c5363 in signal_emit_unlocked_R (node=0x1a88390, detail=<value optimized out>, instance=<value optimized out>, 
    emission_return=<value optimized out>, instance_and_params=<value optimized out>) at gsignal.c:3290
#29 0x00007f8cfc7c6c18 in g_signal_emit_valist (instance=0x1f50ac0, signal_id=<value optimized out>, detail=0, 
    var_args=0x7fff06f8b820) at gsignal.c:2983
#30 0x00007f8cfc7c71a3 in g_signal_emit (instance=0x1360f80, signal_id=36103344, detail=16) at gsignal.c:3040
#31 0x00007f8cfe0649c3 in st_widget_recompute_style (widget=0x1f50ac0, old_theme_node=0x1fb00d0) at st/st-widget.c:1464
#32 0x00007f8cfe064b0b in st_widget_style_changed (widget=0x1f50ac0) at st/st-widget.c:509
#33 0x00007f8cfe064f35 in st_widget_add_style_pseudo_class (actor=0x1f50ac0, pseudo_class=0x1a81470 "active")
    at st/st-widget.c:1311
#34 0x00007f8cf61630d8 in ffi_call_unix64 () at src/x86/unix64.S:75
#35 0x00007f8cf6162e74 in ffi_call (cif=<value optimized out>, fn=<value optimized out>, rvalue=<value optimized out>, 
    avalue=0x7fff06f8bae0) at src/x86/ffi64.c:484
#36 0x00007f8ce5c1d884 in gjs_invoke_c_function (context=<value optimized out>, function=0x1a746d0, obj=0x0, 
    js_argc=<value optimized out>, js_argv=<value optimized out>, js_rval=<value optimized out>) at gi/function.c:624
#37 0x00007f8ce5c1e889 in function_call (context=0x177e7b0, js_argc=1, vp=0x7f8ce692d440) at gi/function.c:870
#38 0x00007f8cfb87d84c in CallJSNative (cx=0x177e7b0, argsRef=<value optimized out>, flags=21) at jscntxtinlines.h:701
#39 js::Invoke (cx=0x177e7b0, argsRef=<value optimized out>, flags=21) at jsinterp.cpp:696
#40 0x00007f8cfb867819 in js::Interpret (cx=0x177e7b0, entryFrame=<value optimized out>, inlineCallCount=0, 
    interpMode=<value optimized out>) at jsinterp.cpp:4810
#41 0x00007f8cfb87d384 in js::RunScript (cx=0x177e7b0, script=0x1a57f30, fp=0x7f8ce692d3e8) at jsinterp.cpp:653
#42 0x00007f8cfb87d712 in js::Invoke (cx=0x177e7b0, argsRef=<value optimized out>, flags=<value optimized out>) at jsinterp.cpp:740
#43 0x00007f8cfb84f5bc in js_fun_apply (cx=0x177e7b0, argc=<value optimized out>, vp=0x7f8ce692d3a8) at jsfun.cpp:2211
#44 0x00007f8cfb871259 in CallJSNative (cx=0x177e7b0, entryFrame=<value optimized out>, inlineCallCount=0, 
    interpMode=<value optimized out>) at jscntxtinlines.h:701
#45 js::Interpret (cx=0x177e7b0, entryFrame=<value optimized out>, inlineCallCount=0, interpMode=<value optimized out>)
    at jsinterp.cpp:4799
#46 0x00007f8cfb87d384 in js::RunScript (cx=0x177e7b0, script=0x18a2000, fp=0x7f8ce692d348) at jsinterp.cpp:653
#47 0x00007f8cfb87d712 in js::Invoke (cx=0x177e7b0, argsRef=<value optimized out>, flags=<value optimized out>) at jsinterp.cpp:740
#48 0x00007f8cfb84f5bc in js_fun_apply (cx=0x177e7b0, argc=<value optimized out>, vp=0x7f8ce692d2f8) at jsfun.cpp:2211
#49 0x00007f8cfb871259 in CallJSNative (cx=0x177e7b0, entryFrame=<value optimized out>, inlineCallCount=3, 
    interpMode=<value optimized out>) at jscntxtinlines.h:701
#50 js::Interpret (cx=0x177e7b0, entryFrame=<value optimized out>, inlineCallCount=3, interpMode=<value optimized out>)
    at jsinterp.cpp:4799
#51 0x00007f8cfb87d384 in js::RunScript (cx=0x177e7b0, script=0x19b6be0, fp=0x7f8ce692d108) at jsinterp.cpp:653
#52 0x00007f8cfb87d712 in js::Invoke (cx=0x177e7b0, argsRef=<value optimized out>, flags=<value optimized out>) at jsinterp.cpp:740
#53 0x00007f8cfb84f5bc in js_fun_apply (cx=0x177e7b0, argc=<value optimized out>, vp=0x7f8ce692d0c8) at jsfun.cpp:2211
#54 0x00007f8cfb871259 in CallJSNative (cx=0x177e7b0, entryFrame=<value optimized out>, inlineCallCount=0, 
    interpMode=<value optimized out>) at jscntxtinlines.h:701
#55 js::Interpret (cx=0x177e7b0, entryFrame=<value optimized out>, inlineCallCount=0, interpMode=<value optimized out>)
    at jsinterp.cpp:4799
#56 0x00007f8cfb87d384 in js::RunScript (cx=0x177e7b0, script=0x18a2000, fp=0x7f8ce692d068) at jsinterp.cpp:653
#57 0x00007f8cfb87d712 in js::Invoke (cx=0x177e7b0, argsRef=<value optimized out>, flags=<value optimized out>) at jsinterp.cpp:740
#58 0x00007f8cfb87e1ec in js::ExternalInvoke (cx=0x177e7b0, thisv=..., fval=..., argc=2, argv=0x7fff06f8d900, rval=0x7fff06f8d978)
    at jsinterp.cpp:863
#59 0x00007f8cfb7f6c81 in JS_CallFunctionValue (cx=0x177e7b0, obj=<value optimized out>, fval=18445617679426069712, argc=2009, 
    argv=0x15, rval=0x7fff06f4a890) at jsapi.cpp:5173
#60 0x00007f8cfbcfcc20 in gjs_call_function_value (context=0x177e7b0, obj=0x0, fval=18445617679426069712, argc=2, 
    argv=0x7fff06f8d900, rval=0x7fff06f8d978) at gjs/jsapi-util.c:1148
#61 0x00007f8ce5c1c55d in gjs_closure_invoke (closure=0x1f898f0, argc=2, argv=0x7fff06f8d900, retval=0x7fff06f8d978)
    at gi/closure.c:267
#62 0x00007f8ce5c252d6 in closure_marshal (closure=<value optimized out>, return_value=<value optimized out>, n_param_values=2, 
    param_values=<value optimized out>, invocation_hint=<value optimized out>, marshal_data=0x2) at gi/value.c:128
#63 0x00007f8cfc7af2aa in g_closure_invoke (closure=0x1f898f0, return_value=0x7fff06f8db30, n_param_values=<value optimized out>, 
    param_values=0x22400a0, invocation_hint=0x7fff06f8daf0) at gclosure.c:767
#64 0x00007f8cfc7c5720 in signal_emit_unlocked_R (node=0x12c8cb0, detail=<value optimized out>, instance=<value optimized out>, 
    emission_return=<value optimized out>, instance_and_params=<value optimized out>) at gsignal.c:3252
#65 0x00007f8cfc7c6a2c in g_signal_emit_valist (instance=0x1f50ac0, signal_id=<value optimized out>, detail=0, 
    var_args=0x7fff06f8dce0) at gsignal.c:2993
#66 0x00007f8cfc7c71a3 in g_signal_emit (instance=0x1360f80, signal_id=36103344, detail=16) at gsignal.c:3040
#67 0x00007f8cfd7e0de4 in clutter_actor_event (actor=0x1f50ac0, event=0x225c300, capture=<value optimized out>)
    at ./clutter-actor.c:8086
#68 0x00007f8cfd81e2e0 in emit_event (event=0x225c300, is_key_event=<value optimized out>) at ./clutter-main.c:2189
#69 0x00007f8cfd820651 in emit_pointer_event (event=0x225c300) at ./clutter-main.c:2216
#70 _clutter_process_event_details (event=0x225c300) at ./clutter-main.c:2513
#71 _clutter_process_event (event=0x225c300) at ./clutter-main.c:2552
#72 0x00007f8cfd8389f8 in _clutter_stage_process_queued_events (stage=0x16f2040) at ./clutter-stage.c:730
#73 0x00007f8cfd820f70 in clutter_clock_dispatch (source=<value optimized out>, callback=<value optimized out>, 
    user_data=<value optimized out>) at ./clutter-master-clock.c:360
#74 0x00007f8cfc4cdbc1 in g_main_dispatch (context=0x1298d30) at gmain.c:2441
#75 g_main_context_dispatch (context=0x1298d30) at gmain.c:3014
#76 0x00007f8cfc4d2258 in g_main_context_iterate (context=0x1298d30, block=<value optimized out>, dispatch=<value optimized out>, 
    self=<value optimized out>) at gmain.c:3092
#77 0x00007f8cfc4d2765 in g_main_loop_run (loop=0x129b7e0) at gmain.c:3300
#78 0x00007f8cfdd82f61 in meta_run () at core/main.c:557
#79 0x00000000004029e7 in main (argc=1, argv=0x7fff06f8e278) at main.c:509