(gdb) bt
#0 0xbfffe410 in __kernel_vsyscall ()
#1 0xb6611590 in raise () from /lib/i686/libc.so.6
#2 0xb6612e21 in abort () from /lib/i686/libc.so.6
#3 0xb6dd0539 in g_logv () from /usr/lib/libglib-2.0.so.0
#4 0xb6dd057b in g_log () from /usr/lib/libglib-2.0.so.0
#5 0xb6e964e8 in pango_layout_set_text () from /usr/lib/libpango-1.0.so.0
#6 0xb72135df in gtk_widget_create_pango_layout () from /usr/lib/libgtk-x11-2.0.so.0
#7 0xb702f882 in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#8 0xb702ff19 in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#9 0xb75efaf8 in Gtk::CellRenderer_Class::get_size_vfunc_callback () from /usr/lib/libgtkmm-2.4.so.1
#10 0xb7028bdc in gtk_cell_renderer_get_size () from /usr/lib/libgtk-x11-2.0.so.0
#11 0xb720107d in gtk_tree_view_column_cell_get_size () from /usr/lib/libgtk-x11-2.0.so.0
#12 0xb71e531a in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#13 0xb71e9a1f in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#14 0xb71f2fab in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#15 0xb76b137e in Gtk::Widget::on_size_request () from /usr/lib/libgtkmm-2.4.so.1
#16 0xb76aef80 in Gtk::Widget_Class::size_request_callback () from /usr/lib/libgtkmm-2.4.so.1
#17 0xb6e52bb0 in g_cclosure_marshal_VOID__BOXED () from /usr/lib/libgobject-2.0.so.0
#18 0xb6e4458e in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#19 0xb6e45ee0 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#20 0xb6e56dff in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#21 0xb6e57ecc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#22 0xb6e5a37b in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0
#23 0xb715b7c5 in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#24 0xb715ba1f in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#25 0xb721581d in gtk_widget_size_request () from /usr/lib/libgtk-x11-2.0.so.0
#26 0xb714fe24 in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#27 0xb76aef60 in Gtk::Widget_Class::size_request_callback () from /usr/lib/libgtkmm-2.4.so.1
#28 0xb6e52bb0 in g_cclosure_marshal_VOID__BOXED () from /usr/lib/libgobject-2.0.so.0
#29 0xb6e4458e in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#30 0xb6e45ee0 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#31 0xb6e56dff in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#32 0xb6e57ecc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#33 0xb6e5a37b in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0
#34 0xb715b7c5 in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#35 0xb715ba1f in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#36 0xb721581d in gtk_widget_size_request () from /usr/lib/libgtk-x11-2.0.so.0
#37 0xb70b12d2 in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#38 0xb76aef60 in Gtk::Widget_Class::size_request_callback () from /usr/lib/libgtkmm-2.4.so.1
#39 0xb6e52bb0 in g_cclosure_marshal_VOID__BOXED () from /usr/lib/libgobject-2.0.so.0
#40 0xb6e4458e in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#41 0xb6e45ee0 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#42 0xb6e56dff in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#43 0xb6e57ecc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#44 0xb6e5a37b in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0
#45 0xb715b7c5 in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#46 0xb715ba1f in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#47 0xb721581d in gtk_widget_size_request () from /usr/lib/libgtk-x11-2.0.so.0
#48 0xb71121dc in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#49 0xb76b137e in Gtk::Widget::on_size_request () from /usr/lib/libgtkmm-2.4.so.1
#50 0xb76aef80 in Gtk::Widget_Class::size_request_callback () from /usr/lib/libgtkmm-2.4.so.1
#51 0xb6e52bb0 in g_cclosure_marshal_VOID__BOXED () from /usr/lib/libgobject-2.0.so.0
#52 0xb6e4458e in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#53 0xb6e45ee0 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#54 0xb6e56dff in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#55 0xb6e57ecc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#56 0xb6e5a37b in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0
#57 0xb715b7c5 in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#58 0xb715ba1f in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#59 0xb721581d in gtk_widget_size_request () from /usr/lib/libgtk-x11-2.0.so.0
#60 0xb71121dc in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#61 0xb76b137e in Gtk::Widget::on_size_request () from /usr/lib/libgtkmm-2.4.so.1
#62 0xb76aef80 in Gtk::Widget_Class::size_request_callback () from /usr/lib/libgtkmm-2.4.so.1
#63 0xb6e52bb0 in g_cclosure_marshal_VOID__BOXED () from /usr/lib/libgobject-2.0.so.0
#64 0xb6e4458e in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#65 0xb6e45ee0 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#66 0xb6e56dff in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#67 0xb6e57ecc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#68 0xb6e5a37b in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0
#69 0xb715b7c5 in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#70 0xb715ba1f in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#71 0xb721581d in gtk_widget_size_request () from /usr/lib/libgtk-x11-2.0.so.0
#72 0xb720bdb2 in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#73 0xb76aef60 in Gtk::Widget_Class::size_request_callback () from /usr/lib/libgtkmm-2.4.so.1
#74 0xb6e52bb0 in g_cclosure_marshal_VOID__BOXED () from /usr/lib/libgobject-2.0.so.0
#75 0xb6e4458e in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#76 0xb6e45ee0 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#77 0xb6e56dff in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#78 0xb6e57ecc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#79 0xb6e5a37b in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0
#80 0xb715b7c5 in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#81 0xb715ba1f in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#82 0xb721581d in gtk_widget_size_request () from /usr/lib/libgtk-x11-2.0.so.0
#83 0xb720dd20 in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#84 0xb76aef60 in Gtk::Widget_Class::size_request_callback () from /usr/lib/libgtkmm-2.4.so.1
#85 0xb6e52bb0 in g_cclosure_marshal_VOID__BOXED () from /usr/lib/libgobject-2.0.so.0
#86 0xb6e4458e in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#87 0xb6e45ee0 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#88 0xb6e56dff in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#89 0xb6e57ecc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#90 0xb6e5a37b in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0
#91 0xb715b7c5 in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#92 0xb715ba1f in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#93 0xb721581d in gtk_widget_size_request () from /usr/lib/libgtk-x11-2.0.so.0
#94 0xb71121dc in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#95 0xb76b137e in Gtk::Widget::on_size_request () from /usr/lib/libgtkmm-2.4.so.1
#96 0xb76aef80 in Gtk::Widget_Class::size_request_callback () from /usr/lib/libgtkmm-2.4.so.1
#97 0xb6e52bb0 in g_cclosure_marshal_VOID__BOXED () from /usr/lib/libgobject-2.0.so.0
#98 0xb6e4458e in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#99 0xb6e45ee0 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#100 0xb6e56dff in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#101 0xb6e57ecc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#102 0xb6e5a37b in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0
#103 0xb715b7c5 in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#104 0xb715ba1f in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#105 0xb721581d in gtk_widget_size_request () from /usr/lib/libgtk-x11-2.0.so.0
#106 0xb70b12d2 in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgtk-x11-2.0.so.0
#107 0xb76aef60 in Gtk::Widget_Class::size_request_callback () from /usr/lib/libgtkmm-2.4.so.1
#108 0xb6e52bb0 in g_cclosure_marshal_VOID__BOXED () from /usr/lib/libgobject-2.0.so.0
#109 0xb6e4458e in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#110 0xb6e45ee0 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#111 0xb6e56dff in virtual thunk to Gtk::ComboBox::~ComboBox() () from /usr/lib/libgobject-2.0.so.0
#112 0xb6e57ecc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#113 0xb6e5a37b in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0