(gdb) bt
#0  0x00007ffff4b640a5 in raise () from /lib/libc.so.6
#1  0x00007ffff4b65440 in abort () from /lib/libc.so.6
#2  0x00007ffff51731d5 in g_assertion_message () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff5173732 in g_assertion_message_expr () from /usr/lib/libglib-2.0.so.0
#4  0x00007ffff77b186e in ev_document_misc_get_thumbnail_frame () from /usr/lib/libevdocument.so.2
#5  0x0000000000436d9d in ?? ()
#6  0x0000000000436e16 in ?? ()
#7  0x000000000043793c in ?? ()
#8  0x00007ffff58395ff in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#9  0x00007ffff584efb3 in ?? () from /usr/lib/libgobject-2.0.so.0
#10 0x00007ffff58506d1 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#11 0x00007ffff5850c13 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#12 0x00007ffff583d7f8 in ?? () from /usr/lib/libgobject-2.0.so.0
#13 0x00007ffff583f4df in g_object_notify () from /usr/lib/libgobject-2.0.so.0
#14 0x0000000000429bbb in ?? ()
#15 0x00007ffff58395ff in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#16 0x00007ffff584efb3 in ?? () from /usr/lib/libgobject-2.0.so.0
#17 0x00007ffff58506d1 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#18 0x00007ffff5850c13 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#19 0x00007ffff7573180 in ?? () from /usr/lib/libevview.so.2
#20 0x00007ffff514d0a4 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#21 0x00007ffff5150d68 in ?? () from /usr/lib/libglib-2.0.so.0
#22 0x00007ffff5151385 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#23 0x00007ffff6d25cc7 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#24 0x0000000000438792 in ?? ()
#25 0x00007ffff4b50ba6 in __libc_start_main () from /lib/libc.so.6
#26 0x000000000041b629 in ?? ()
#27 0x00007fffffffe368 in ?? ()
#28 0x000000000000001c in ?? ()
#29 0x0000000000000001 in ?? ()
#30 0x00007fffffffe686 in ?? ()
#31 0x0000000000000000 in ?? ()

