#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:58
        set = {__val = {0, 343597383809, 4, 0, 472446402655, 0, 0, 532575944823, 0, 4294967296, 17179869184, 0, 17179869184, 139932758063872, 2048, 4294969344}}
        pid = <optimized out>
        tid = <optimized out>
#1  0x00007f44a21d93ea in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {0, 472446402651, 0, 0, 94238624513936, 135, 139932763528384, 139932785934344, 140733986549824, 94238624552464, 139932754674060, 135, 139932763528384, 139932785934344, 140733986549824, 94238624552464}}, sa_flags = -1547894896, sa_restorer = 0x87}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007f44a27f8135 in g_assertion_message () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f44a27f81ca in g_assertion_message_expr () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f44a3fa9567 in ?? () from /usr/lib/x86_64-linux-gnu/libmutter-0.so.0
No symbol table info available.
#5  0x00007f44a3fa984a in meta_window_compute_group () from /usr/lib/x86_64-linux-gnu/libmutter-0.so.0
No symbol table info available.
#6  0x00007f44a3f9fdbc in meta_window_set_transient_for () from /usr/lib/x86_64-linux-gnu/libmutter-0.so.0
No symbol table info available.
#7  0x00007f44a3faead8 in meta_window_load_initial_properties () from /usr/lib/x86_64-linux-gnu/libmutter-0.so.0
No symbol table info available.
#8  0x00007f44a3fb274c in ?? () from /usr/lib/x86_64-linux-gnu/libmutter-0.so.0
No symbol table info available.
#9  0x00007f44a3f9b2a0 in ?? () from /usr/lib/x86_64-linux-gnu/libmutter-0.so.0
No symbol table info available.
#10 0x00007f44a3fb3208 in meta_window_x11_new () from /usr/lib/x86_64-linux-gnu/libmutter-0.so.0
No symbol table info available.
#11 0x00007f44a3fa8514 in ?? () from /usr/lib/x86_64-linux-gnu/libmutter-0.so.0
No symbol table info available.
#12 0x00007f44a3fa8b8b in ?? () from /usr/lib/x86_64-linux-gnu/libmutter-0.so.0
No symbol table info available.
#13 0x00007f449f233af1 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
No symbol table info available.
#14 0x00007f449f233da9 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
No symbol table info available.
#15 0x00007f449f1fe129 in gdk_display_get_event () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
No symbol table info available.
#16 0x00007f449f233b62 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
No symbol table info available.
#17 0x00007f44a27d1377 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#18 0x00007f44a27d15e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#19 0x00007f44a27d1902 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#20 0x00007f44a3f896dc in meta_run () from /usr/lib/x86_64-linux-gnu/libmutter-0.so.0
No symbol table info available.
#21 0x000055b59f0851a7 in main ()
No symbol table info available.