From: niktechc@niktech.com   
      
   Hi Ori,   
      
   A typical garbage collector would "scan" the stack of all   
   active processes looking for values that "might be" pointers.   
   If it finds something that looks like a pointer, it will mark   
   the "memory" as referenced. This will lead some false positives   
   ofcourse.   
      
   Hope that helps.   
      
   Sandeep   
      
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