dual-GPU desktop setup: gnome-shell (3.28) segfault 4

(gdb) bt
#0  0x00007eff3c52df1b in raise () at /lib64/libpthread.so.0
#1  0x000055c9008cfc3b in  ()
#2  0x00007eff3c52e080 in <signal handler called> () at /lib64/libpthread.so.0
#3  0x00007eff3c1949eb in raise () at /lib64/libc.so.6
#4  0x00007eff3c195da1 in abort () at /lib64/libc.so.6
#5  0x00007eff3c1d7c87 in __libc_message () at /lib64/libc.so.6
#6  0x00007eff3c1de29a in  () at /lib64/libc.so.6
#7  0x00007eff3c1de7fc in  () at /lib64/libc.so.6
#8  0x00007eff3e2bbf62 in g_error_free (error=0x55c9031c7970) at gerror.c:493
#9  0x00007eff3b274aba in cogl_texture_new_with_size () at /usr/lib64/mutter/libmutter-cogl-2.so
#10 0x00007eff3bd24b1f in _st_create_shadow_pipeline_from_actor () at /usr/lib64/gnome-shell/libst-1.0.so
#11 0x00007eff3bd223fc in  () at /usr/lib64/gnome-shell/libst-1.0.so
#12 0x00007eff3bd22488 in  () at /usr/lib64/gnome-shell/libst-1.0.so
#13 0x00007eff3bd22668 in  () at /usr/lib64/gnome-shell/libst-1.0.so
#14 0x00007eff3e5aaa50 in _g_closure_invoke_va (closure=0x55c902d00f40, return_value=0x0, instance=0x55c903c62120, args=0x7ffed2ae2b10, n_params=0, param_types=0x0) at gclosure.c:867
#15 0x00007eff3e5c646f in g_signal_emit_valist (instance=0x55c903c62120, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffed2ae2b10) at gsignal.c:3300
#16 0x00007eff3e5c6b9f in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at gsignal.c:3447
#17 0x00007eff3bd3ca73 in  () at /usr/lib64/gnome-shell/libst-1.0.so
#18 0x00007eff3bd3cc1b in st_widget_style_changed () at /usr/lib64/gnome-shell/libst-1.0.so
#19 0x00007eff3bd3ccf4 in  () at /usr/lib64/gnome-shell/libst-1.0.so
#20 0x00007eff3e5aaa50 in _g_closure_invoke_va (closure=0x55c902d00f40, return_value=0x0, instance=0x55c90324bc50, args=0x7ffed2ae2ee0, n_params=0, param_types=0x0) at gclosure.c:867
#21 0x00007eff3e5c646f in g_signal_emit_valist (instance=0x55c90324bc50, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffed2ae2ee0) at gsignal.c:3300
#22 0x00007eff3e5c6b9f in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at gsignal.c:3447
#23 0x00007eff3bd3ca73 in  () at /usr/lib64/gnome-shell/libst-1.0.so
#24 0x00007eff3bd3cc1b in st_widget_style_changed () at /usr/lib64/gnome-shell/libst-1.0.so
#25 0x00007eff3bd3ccf4 in  () at /usr/lib64/gnome-shell/libst-1.0.so
#29 0x00007eff3e5c6b9f in <emit signal ??? on instance 0x55c902701520 [ShellGenericContainer]> (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at gsignal.c:3447
    #26 0x00007eff3e5aa821 in g_closure_invoke (closure=0x55c902d00f40, return_value=0x0, n_param_values=1, param_values=0x7ffed2ae3250, invocation_hint=0x7ffed2ae31d0) at gclosure.c:804
    #27 0x00007eff3e5bd7f8 in signal_emit_unlocked_R (node=node@entry=0x55c902c82ea0, detail=detail@entry=0, instance=instance@entry=0x55c902701520, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7ffed2ae3250) at gsignal.c:3673
    #28 0x00007eff3e5c617c in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffed2ae3410) at gsignal.c:3391
#30 0x00007eff3bd3ca73 in  () at /usr/lib64/gnome-shell/libst-1.0.so
#31 0x00007eff3bd3cc1b in st_widget_style_changed () at /usr/lib64/gnome-shell/libst-1.0.so
#32 0x00007eff3bd3ccf4 in  () at /usr/lib64/gnome-shell/libst-1.0.so
#33 0x00007eff3e5aaa50 in _g_closure_invoke_va (closure=0x55c902d00f40, return_value=0x0, instance=0x55c9026ed790, args=0x7ffed2ae37e0, n_params=0, param_types=0x0) at gclosure.c:867
#34 0x00007eff3e5c646f in g_signal_emit_valist (instance=0x55c9026ed790, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffed2ae37e0) at gsignal.c:3300
#35 0x00007eff3e5c6b9f in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at gsignal.c:3447
#36 0x00007eff3bd3ca73 in  () at /usr/lib64/gnome-shell/libst-1.0.so
#37 0x00007eff3bd3cc1b in st_widget_style_changed () at /usr/lib64/gnome-shell/libst-1.0.so
#38 0x00007eff3bd3ccf4 in  () at /usr/lib64/gnome-shell/libst-1.0.so
#39 0x00007eff3e5aaa50 in _g_closure_invoke_va (closure=0x55c902d00f40, return_value=0x0, instance=0x55c903575540, args=0x7ffed2ae3bb0, n_params=0, param_types=0x0) at gclosure.c:867
#40 0x00007eff3e5c646f in g_signal_emit_valist (instance=0x55c903575540, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffed2ae3bb0) at gsignal.c:3300
#41 0x00007eff3e5c6b9f in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at gsignal.c:3447
#42 0x00007eff3bd3ca73 in  () at /usr/lib64/gnome-shell/libst-1.0.so
#43 0x00007eff3bd3cc1b in st_widget_style_changed () at /usr/lib64/gnome-shell/libst-1.0.so
#44 0x00007eff3bd3ccf4 in  () at /usr/lib64/gnome-shell/libst-1.0.so
#45 0x00007eff3e5aab46 in _g_closure_invoke_va (closure=0x55c902d00f40, return_value=0x0, instance=0x55c903565c20, args=0x7ffed2ae3f80, n_params=0, param_types=0x0) at gclosure.c:867
#46 0x00007eff3e5c646f in g_signal_emit_valist (instance=0x55c903565c20, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffed2ae3f80) at gsignal.c:3300
---Type <return> to continue, or q <return> to quit---
#47 0x00007eff3e5c6b9f in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at gsignal.c:3447
#48 0x00007eff3bd3ca73 in  () at /usr/lib64/gnome-shell/libst-1.0.so
#49 0x00007eff3bd3cc1b in st_widget_style_changed () at /usr/lib64/gnome-shell/libst-1.0.so
#50 0x00007eff3bd3d208 in st_widget_add_style_pseudo_class () at /usr/lib64/gnome-shell/libst-1.0.so
#51 0x00007eff3858f6bd in  () at /usr/lib64/libffi.so.7
#52 0x00007eff3858ebcf in  () at /usr/lib64/libffi.so.7
#53 0x00007eff3d295848 in  () at /usr/lib64/libgjs.so.0
#54 0x00007eff3d297094 in  () at /usr/lib64/libgjs.so.0
#55 0x00007eff35182ccc in  () at /usr/lib64/libmozjs-52.so
#56 0x00007eff3517d3b6 in  () at /usr/lib64/libmozjs-52.so
#57 0x00007eff3518276e in  () at /usr/lib64/libmozjs-52.so
#58 0x00007eff35182ad2 in  () at /usr/lib64/libmozjs-52.so
#59 0x00007eff35183195 in  () at /usr/lib64/libmozjs-52.so
#60 0x00007eff3503e0c4 in  () at /usr/lib64/libmozjs-52.so
#61 0x00007eff35182b9e in  () at /usr/lib64/libmozjs-52.so
#62 0x00007eff353d2f92 in  () at /usr/lib64/libmozjs-52.so
#63 0x0000287196ccfa96 in  ()
#64 0x00007eff084cff78 in  ()
#65 0x00007ffed2ae5670 in  ()
#66 0xfff9000000000000 in  ()
#67 0x00007eff36410220 in  () at /usr/lib64/libmozjs-52.so
#68 0x00007eff08471520 in  ()
#69 0x0000287196cd93f3 in  ()
#70 0x0000000000005022 in  ()
#71 0x00007ffed2ae5758 in  ()
#72 0x000055c902995480 in  ()
#73 0x0000000000000002 in  ()
#74 0x00007ffed2ae56b8 in  ()
#75 0xfffe7eff08484180 in  ()
#76 0xfffe7eff080d8ba0 in  ()
#77 0xfffc000000000000 in  ()
#78 0xfffe7eff08533298 in  ()
#79 0x00007ffed2ae5788 in  ()
#80 0x000055c902995480 in  ()
#81 0x0000287196d02772 in  ()
#82 0x0000000000009821 in  ()
#83 0xfffe7eff08533298 in  ()
#84 0xfffc000000000000 in  ()
#85 0xfffe7eff080d8ba0 in  ()
#86 0xfffe7eff08484180 in  ()
#87 0xfffa00000000000f in  ()
#88 0xfffe7efeea069d90 in  ()
#89 0xfffe7eff08533298 in  ()
#90 0xfff8800000000008 in  ()
#91 0xfff8800000000001 in  ()
#92 0xfffe7eff085331b8 in  ()
#93 0xfffe7eff080c8100 in  ()
#94 0xfffe7eff08533160 in  ()