#0  0x00007f1aa0c66d05 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        resultvar = 0
        pid = <value optimized out>
        selftid = 7550
#1  0x00007f1aa0c6aab6 in abort () at abort.c:92
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0, sa_sigaction = 0}, sa_mask = {__val = {139752346819008, 8, 6160447, 139752343051168, 139752363230424, 1, 139752344058568, 4294967295, 140736094758992, 140736094758784, 7576, 9142616, 0, 139752220204800, 140736094764352, 0}}, sa_flags = -1579643612, sa_restorer = 0x7f1a00000005}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x0000000000489243 in mono_handle_native_sigsegv (signal=<value optimized out>, ctx=<value optimized out>) at mini-exceptions.c:1856
        sa = {__sigaction_handler = {sa_handler = 0, sa_sigaction = 0}, sa_mask = {__val = {0 <repeats 16 times>}}, sa_flags = 0, sa_restorer = 0}
        jit_tls = <value optimized out>
        __PRETTY_FUNCTION__ = "mono_handle_native_sigsegv"
#3  <signal handler called>
No symbol table info available.
#4  0x00007f1aa0c66d05 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        resultvar = 0
        pid = <value optimized out>
        selftid = 7550
#5  0x00007f1aa0c6aab6 in abort () at abort.c:92
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x7f1a99720ba0, sa_sigaction = 0x7f1a99720ba0}, sa_mask = {__val = {139752356346945, 1024, 139752196014112, 139752343051168, 139752363230424, 182, 139752220246832, 4294967295, 139752343533795, 140736094763624, 139752220246832, 3068024, 0, 139752216069360, 140736094764352, 139752355950592}}, sa_flags = -1579643612, sa_restorer = 0x7f1a00000005}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#6  0x00007f1aa18ef51d in g_assertion_message (domain=<value optimized out>, file=<value optimized out>, line=<value optimized out>, func=0x7f1a93832920 "IA__gtk_container_propagate_expose", message=0x7f1a991ae440 "assertion failed: (child->parent == GTK_WIDGET (container))") at /build/buildd/glib2.0-2.28.5/./glib/gtestutils.c:1358
        lstr = "2756\000\177\000\000 W\367\241\032\177\000\000\000\000\000\000\000\000\000\000\320 \203\223\032\177\000"
        s = 0x7f1a9971c330 "\030\001"
#7  0x00007f1aa18efae0 in g_assertion_message_expr (domain=0x7f1a938236db "Gtk", file=0x7f1a93832068 "/build/buildd/gtk+2.0-2.24.4/gtk/gtkcontainer.c", line=2756, func=0x7f1a93832920 "IA__gtk_container_propagate_expose", expr=<value optimized out>) at /build/buildd/glib2.0-2.28.5/./glib/gtestutils.c:1369
        s = 0x0
#8  0x00007f1a9360ce81 in IA__gtk_container_propagate_expose (container=0x7f1a985040f0, child=0x7f1a993204f0, event=0x7f1a994d18e0) at /build/buildd/gtk+2.0-2.24.4/gtk/gtkcontainer.c:2756
        child_event = <value optimized out>
        __PRETTY_FUNCTION__ = "IA__gtk_container_propagate_expose"
#9  0x0000000041021a07 in ?? ()
No symbol table info available.
#10 0x00007fffacefa3e0 in ?? ()
No symbol table info available.
#11 0x00007fffacef79c0 in ?? ()
No symbol table info available.
#12 0x00007fffacef7d00 in ?? ()
No symbol table info available.
#13 0x00007f1a7e86b160 in ?? ()
No symbol table info available.
#14 0x0000000000000001 in ?? ()
No symbol table info available.
#15 0x00007fffacef7d00 in ?? ()
No symbol table info available.
#16 0x00007fffacef7bb0 in ?? ()
No symbol table info available.
#17 0x00007f1a82013930 in ?? ()
No symbol table info available.
#18 0x00007f1a985040f0 in ?? ()
No symbol table info available.
#19 0x00007f1a7e855370 in ?? ()
No symbol table info available.
#20 0x00007f1a7e86b160 in ?? ()
No symbol table info available.
#21 0x0000000041021978 in ?? ()
No symbol table info available.
#22 0x00007f1a82013930 in ?? ()
No symbol table info available.
#23 0x00007f1a7e8a63a8 in ?? ()
No symbol table info available.
#24 0x0000000041910000 in ?? ()
No symbol table info available.
#25 0x000000004102193c in ?? ()
No symbol table info available.
#26 0x00007f1a7e855360 in ?? ()
No symbol table info available.
#27 0x00007f1a7e86b160 in ?? ()
No symbol table info available.
#28 0x00007fffacef7d00 in ?? ()
No symbol table info available.
#29 0x0000000041021901 in ?? ()
No symbol table info available.
#30 0x00007f1a993a68f0 in ?? ()
No symbol table info available.
#31 0x00007f1a82013930 in ?? ()
No symbol table info available.
#32 0x00007f1a82013930 in ?? ()
No symbol table info available.
#33 0x000000004102188d in ?? ()
No symbol table info available.
#34 0x0000000000000002 in ?? ()
No symbol table info available.
#35 0x00007f1a7e855360 in ?? ()
No symbol table info available.
#36 0x00007fffacef7d40 in ?? ()
No symbol table info available.
#37 0x00007f1a9360cf80 in ?? () at /build/buildd/gtk+2.0-2.24.4/gtk/gtkcontainer.c:2770 from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#38 0x0000000000000001 in ?? ()
No symbol table info available.
#39 0x0000000000000000 in ?? ()
No symbol table info available.