#0  0x00007f94322ddaeb in ?? ()
No symbol table info available.
#1  0x000055d09947a530 in ?? ()
No symbol table info available.
#2  0x00007f94335b51ce in ?? () from /tmp/apport_sandbox_bktRA2/usr/lib/x86_64-linux-gnu/libgdk-3.so.0
No symbol table info available.
#3  0x0000000000000000 in ?? ()
No symbol table info available.