#0  0x00007fe4c7dabf3b in raise () from /lib/libpthread.so.0
#1  0x0000000000411376 in ?? ()
#2  <signal handler called>
#3  0x00007fe4c5c70949 in g_value_get_boolean ()
   from /usr/lib/libgobject-2.0.so.0
#4  0x00007fe4c76d1589 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#5  0x00007fe4c5c60b45 in ?? () from /usr/lib/libgobject-2.0.so.0
#6  0x00007fe4c5c622bd in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#7  0x00007fe4c5c62953 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#8  0x00007fe4c77e109e in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#9  0x00007fe4b68bb89c in ?? ()
   from /usr/lib/sunbird/components/libwidget_gtk2.so
#10 0x00007fe4b68bb8eb in ?? ()
   from /usr/lib/sunbird/components/libwidget_gtk2.so
#11 0x00007fe4b68bcb4b in ?? ()
   from /usr/lib/sunbird/components/libwidget_gtk2.so
#12 0x00007fe4c8692b4e in XPTC_InvokeByIndex ()
   from /usr/lib/sunbird/libxpcom_core.so
#13 0x00007fe4b6d33afb in ?? ()
   from /usr/lib/sunbird/components/libxpconnect.so
#14 0x00007fe4b6d3a846 in ?? ()
   from /usr/lib/sunbird/components/libxpconnect.so
#15 0x00007fe4c8b22688 in js_Invoke () from /usr/lib/sunbird/libmozjs.so
#16 0x00007fe4c8b2477d in ?? () from /usr/lib/sunbird/libmozjs.so
#17 0x00007fe4c8b22dd9 in js_Invoke () from /usr/lib/sunbird/libmozjs.so
#18 0x00007fe4b6d30e27 in ?? ()
   from /usr/lib/sunbird/components/libxpconnect.so
#19 0x00007fe4c8693805 in ?? () from /usr/lib/sunbird/libxpcom_core.so
#20 0x00007fe4c8692c7b in ?? () from /usr/lib/sunbird/libxpcom_core.so
#21 0x0000000000cc4ad0 in ?? ()
#22 0x00007fe4b03ff870 in ?? ()
#23 0x00007fffd0fb1a78 in ?? ()
#24 0x00007fffd0fb1a60 in ?? ()
#25 0x0000000000a31960 in ?? ()
#26 0x00007fffd0fb1d68 in ?? ()
#27 0x3ff0000000000000 in ?? ()
#28 0x0000000000000000 in ?? ()