Hi I have experienced a fatal crash with LuaTeX if an encoding file is missing: I am using debug versions (built with --nostrip) Reproducible in This is LuaTeX, Version beta-0.53.0-2010032719 This is LuaTeX, Version beta-0.60.0-2010040417 --- both are debug versions compiled from source All you need to do is rename the encoding file to something different mentioned in pdftex.map and the crash is reproducible every time. [1{c:/msys/1.0/trunk/build/texk/fonts/map/pdftex.map}] ) (see the transcript file for additional information) !LuaTeX error: cannot find encoding file for reading ==> Fatal error occurred, no output PDF file produced! Please let me know anything else I can do which will help track this down. I have GNU's gdb installed and would be happy to do whatever I can to help. Also, if this is not the right way to report bugs/issues do please let me know and I'll follow the correct procedures. Best wishes Graham