linux - My Ubuntu gives a "process exited" rather than segmentation fault -

I am currently studying return-oriented programming and I only have basic knowledge of daily use for Linux. I am using Ubuntu 32-bit Server 12.04. While I am disabling the ASLR and trying to make a segmentation mistake on the program (just inserting it as 400 A), it only shows me the following in gdb:

[inferior 1 (process 1965) Code 015]

Edit: The code is simple:

  #include & lt; Stdio.h & gt; Int main (int argc, char * argv []) {four buff [256]; Mempie (Buff, AGRV [1], Stellen (RGR [1])); Printf (buf); }  

When I do it on the command line, it does not show me anything. How do I create it, which gives me a split error? Also, does anyone know that this is the appropriate OS version for running CTF problems?

Thank you.