#0  0x00007f198fa505fa in ?? ()
No symbol table info available.
#1  0x00005590c921713c in ?? ()
No symbol table info available.
#2  0x00005590cabd2d80 in ?? ()
No symbol table info available.
#3  0x00005590ca27c210 in ?? ()
No symbol table info available.
#4  0x00005590ca27c350 in ?? ()
No symbol table info available.
#5  0x00005590c921713c in ?? ()
No symbol table info available.
#6  0x00005590cac01160 in ?? ()
No symbol table info available.
#7  0x00007f1990ff3e20 in ?? () from /tmp/apport_sandbox_s4w5NJ/usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#8  0x00005590c920af40 in save_cities_store (cd=<optimized out>, cd=<optimized out>) at clock.c:2554
        locs = 0x5590cac01160
        node = 0x7f1990ff3e20 <_gtk_tree_data_list_compare_func>
#9  0x00005590c920bda7 in clock_timezone_changed (systz=<optimized out>, new_tz=<optimized out>, cd=0x5590c9738600) at clock.c:2257
No locals.
#10 0x00007f198fa2bc25 in ?? ()
No symbol table info available.
#11 0x00005590ca212c00 in ?? ()
No symbol table info available.
#12 0x00007f1990e20c36 in gtk_container_draw (widget=0x2, cr=0x7ffd87042320) at ././gtk/gtkcontainer.c:3661
        container = 0x2
        child_infos = 0x0
        i = <optimized out>
        child_info = <optimized out>
        data = {container = 0x559040000002, child_infos = 0x7f198f740c99, cr = 0x5590c9ae2680}
#13 0x00007ffd870422a0 in ?? ()
No symbol table info available.
#14 0x0000000000000000 in ?? ()
No symbol table info available.