#0  0x00007f071fb04ff1 in ?? ()
#1  0x00007f0721326d7c in ?? () from /tmp/apport_sandbox_5lv3JF/usr/lib/x86_64-linux-gnu/libmutter-0.so.0
#2  0x00007f071fb06028 in ?? ()
#3  0x00007f071fb51dbf in ?? ()
#4  0x00007f071fba674e in ?? ()
#5  0xffffffffffffffff in ?? ()
#6  0x00007f071fb51cd9 in ?? ()
#7  0x000055974a611800 in ?? ()
#8  0xffffffffffffffff in ?? ()
#9  0x00007f071fb51cec in ?? ()
#10 0x00007f071fb4be5a in ?? ()
#11 0xffffffffffffffff in ?? ()
#12 0x00007f071fb51d46 in ?? ()
#13 0x00007f0721326d7c in ?? () from /tmp/apport_sandbox_5lv3JF/usr/lib/x86_64-linux-gnu/libmutter-0.so.0
#14 0xffffffffffffffff in ?? ()
#15 0x000055974a611800 in ?? ()
#16 0xc723dfc7df958900 in ?? ()
#17 0x0000000000000006 in ?? ()
#18 0x000055974681a695 in default_log_handler ()
#19 0x00007f071fb06244 in ?? ()
#20 0x000055974a611800 in ?? ()
#21 0x00007f0721326d7c in ?? () from /tmp/apport_sandbox_5lv3JF/usr/lib/x86_64-linux-gnu/libmutter-0.so.0
#22 0x0000000148c1c0c8 in ?? ()
#23 0x0000000000000000 in ?? ()