backtrace

(gdb) backtrace
#0  0xb7fe2424 in __kernel_vsyscall ()
#1  0xb6e0d941 in raise () from /lib/i386-linux-gnu/i686/cmov/libc.so.6
#2  0xb6e10d72 in abort () from /lib/i386-linux-gnu/i686/cmov/libc.so.6
#3  0xb6e47135 in ?? () from /lib/i386-linux-gnu/i686/cmov/libc.so.6
#4  0xb6e51221 in ?? () from /lib/i386-linux-gnu/i686/cmov/libc.so.6
#5  0xb6e5249e in ?? () from /lib/i386-linux-gnu/i686/cmov/libc.so.6
#6  0xb710638b in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb7106666 in g_free () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x0808190d in dealloc_message (message=0xadd0da98) at init.c:1058
#9  0x080769f0 in gui_dispatcher (data=0x0) at dispatcher.c:216
#10 0xb710112f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#11 0xb70ffa3f in g_main_context_dispatch ()
   from /lib/i386-linux-gnu/libglib-2.0.so.0
#12 0xb7100170 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#13 0xb710077b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#14 0xb78666d4 in gtk_dialog_run ()
   from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#15 0x0807a9f0 in prompt_to_save () at gui_handlers.c:1647
#16 0x0807b019 in leave (widget=0x82548f8, data=0x83d2ae8)
    at gui_handlers.c:122
#17 0xb78f1662 in ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#18 0xb71d63dc in g_closure_invoke ()
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