title: Empty core dump file after Segmentation fault
body: <p>I am running a program, and it is interrupted by Segmentation fault. The problem is that the core dump file is created, but of size zero. </p>
  
  <p>Have you heard about such a case and how to resolve it? </p>
  
  <p>I have enough space on the disk. I have already performed <code>ulimit -c unlimited</code> to unlimit the size of core file - both running it or putting on the top of the submitted batch file - but still have 0 byte core dump files. The permissions of the folder containing these files are uog+rw and the permissions on the core files created are u+rw only.</p>
  
  <p>The program is written by C++ and submitted on a linux cluster with qsub command of the Grid Engine, I don't know this information is relevant or not to this question.</p>