Program received signal SIGSEGV, Segmentation fault.
0x0000003124676f40 in strlen () from /lib/libc.so.6
(gdb) bt
#0  0x0000003124676f40 in strlen () from /lib/libc.so.6
#1  0x000000000048864b in CallTip::CallTipStart (this=0xd9c930, pos=685, pt=<value optimized out>, defn=0x0, faceName=0xda1720 "!Bitstream Vera Sans Mono", size=9, codePage_=65001, characterSet=1, wParent=@0xd98098) at CallTip.cxx:259
#2  0x00000000004aeaa4 in ScintillaBase::CallTipShow (this=0xd98090, pt={x = 337, y = 0}, defn=0x0) at ScintillaBase.cxx:394
#3  0x00000000004afbde in ScintillaBase::WndProc (this=0xd98090, iMessage=<value optimized out>, wParam=685, lParam=0) at ScintillaBase.cxx:625
#4  0x000000000043129a in on_editor_notification (editor=<value optimized out>, scn=<value optimized out>, lscn=0x7fff7940d920, user_data=<value optimized out>) at editor.c:318
#5  0x0000000000487c1a in scintilla_marshal_VOID__INT_POINTER () at ./include/Platform.h:375
#6  0x000000313160b22b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#7  0x000000313161dd04 in ?? () from /usr/lib/libgobject-2.0.so.0
#8  0x000000313161f7e7 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#9  0x000000313161fbbe in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#10 0x0000000000483db5 in ScintillaGTK::NotifyParent (this=0xd98090, scn=
      {nmhdr = {hwndFrom = 0xd35710, idFrom = 13, code = 2022}, position = 0, ch = 0, modifiers = 0, modificationType = 0, text = 0x8dd9e0 "name", length = 0, linesAdded = 0, message = 0, wParam = 0, lParam = 681, line = 0, foldLevelNow = 0, foldLevelPrev = 0, margin = 0, listType = 0, x = 0, y = 0}) at ScintillaGTK.cxx:1247
#11 0x00000000004af7a6 in ScintillaBase::AutoCompleteCompleted (this=0xd98090) at ScintillaBase.cxx:347
#12 0x00000000004b0403 in ScintillaBase::KeyCommand (this=0xd98090, iMessage=2329) at ScintillaBase.cxx:173
#13 0x00000000004a3670 in Editor::WndProc (this=0xd98090, iMessage=2329, wParam=0, lParam=0) at Editor.cxx:7165
#14 0x00000000004afad4 in ScintillaBase::WndProc (this=0xd98090, iMessage=17041296, wParam=0, lParam=0) at ScintillaBase.cxx:733
#15 0x000000000049bd7a in Editor::KeyDown (this=0xd98090, key=13, shift=<value optimized out>, ctrl=<value optimized out>, alt=false, consumed=0x7fff7940dfd7) at Editor.cxx:4539
#16 0x0000000000483006 in ScintillaGTK::KeyThis (this=0xd98090, event=0xff15c0) at ScintillaGTK.cxx:2041
#17 0x00000039675197a6 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#18 0x000000313160b2f7 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#19 0x000000313161e0fa in ?? () from /usr/lib/libgobject-2.0.so.0
#20 0x000000313161f515 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#21 0x000000313161fbbe in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#22 0x00000039676021ea in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#23 0x000000396760ec6f in gtk_window_propagate_key_event () from /usr/lib/libgtk-x11-2.0.so.0
#24 0x000000396761136c in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#25 0x00000039675197a6 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#26 0x000000313160b22b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#27 0x000000313161e0fa in ?? () from /usr/lib/libgobject-2.0.so.0
#28 0x000000313161f515 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#29 0x000000313161fbbe in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#30 0x00000039676021ea in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#31 0x00000039675146be in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0
#32 0x000000396751534d in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0
#33 0x0000003967e42db4 in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#34 0x0000003130e2b92e in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#35 0x0000003130e2e7c5 in ?? () from /usr/lib/libglib-2.0.so.0
#36 0x0000003130e2eb0c in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#37 0x00000039675156b4 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#38 0x0000000000464be6 in main (argc=1, argv=0x7fff7940f158) at main.c:767