Description:
------------
when iterating through a dir structure the apache process serving this script crashes with 'child pid XY exit signal Segmentation fault (11)' when trying to execute getPath method

Reproduce code:
---------------
  function test_apache_segfault()
  {
    $diriter = new RecursiveIteratorIterator( new RecursiveDirectoryIterator('.') );

    foreach ($diriter as $key => $file) {
      echo($file->getFilename()); flush(); 
      echo(' 1'); flush();

     // 'child pid XY exit signal Segmentation fault (11)'
     echo($file->getPath()); // <-- crash here      
     echo(' 2'); flush();
    }  // foreach
   echo(' end'); flush();
  }


Expected result:
----------------
a list of more than one entry and
the word 'end' at the end

Actual result:
--------------
output ends after the 'echo 1'

when commenting out the line with 'getPath' this function runs till the end.

checked this with 
- apache 2.0.53 and php 5.0.4  both compiled by myself
- apache 2.2.0 and php 5.1.2  both compiled by myself
- apache 2.2.0 and php 5.1.3-dev (2006-02-02 snap)  both compiled by myself