title: An error which does not present itself with a debugger attached
body: <p>I am using Intel's FORTRAN compiler to compile a numerical library.  The test case provided errors out within libc.so.6.  When I attach Intel's debugger (IDB) the application runs through successfully.  How do I debug a bug where the debugger prevents the bug?  Note that the same bug arose with gfortran.</p>
  
  <p>I am working within OpenSUSE 11.2 x64.</p>
  
  <p>The error is:</p>
  
  <p>forrtl: severe (408): fort: (3): Subscript #1 of the array B has value -534829264 which is less than the lower bound of 1</p>