Program received signal SIGSEGV, Segmentation fault.
0x00000000007c89f9 in FTGlyphContainer::Advance (this=0xd02250, charCode=4294967168, 
    nextCharCode=0) at FTGlyphContainer.cpp:98
98          return face->KernAdvance(left, right).Xf() + Glyph(charCode)->Advance();

(gdb) bt

#0  0x00000000007c89f9 in FTGlyphContainer::Advance (this=0xd02250, charCode=4294967168, 
    nextCharCode=0) at FTGlyphContainer.cpp:98
#1  0x00000000007c75a1 in AdvanceI<unsigned char> (this=0xcff2c0, string=<value optimized out>, 
    len=-1, spacing=...) at FTFont/FTFont.cpp:453
#2  FTFontImpl::Advance (this=0xcff2c0, string=<value optimized out>, len=-1, spacing=...)
    at FTFont/FTFont.cpp:469
#3  0x000000000073919c in FontManager::getStringWidth (this=0xbeb4b0, faceID=2, size=9.640625, 
    text=..., alreadyStripped=false) at FontManager.cxx:688
#4  0x0000000000449358 in ControlPanelMessage::breakLines (this=0x7fffffffc9a0, 
    maxLength=680.761719, fontFace=2, fontSize=9.640625) at ControlPanel.cxx:90
#5  0x0000000000449b63 in ControlPanel::addMessage (this=0x7fffffffe0b0, line=..., realmode=3)
    at ControlPanel.cxx:937

(gdb) up
(gdb) up
(gdb) up

#3  0x000000000073919c in FontManager::getStringWidth (this=0xbeb4b0, faceID=2, size=9.640625, 
    text=..., alreadyStripped=false) at FontManager.cxx:688

(gdb) disp text
4: text = (const std::string &) @0x7fffffffc880: {static npos = 18446744073709551615, 
  _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x1a61988 "char = À"}}

(gdb) disp text[7]
5: text[7] = (char &) @0x1a6198f: -64 'À'