IBM Journal of Research and Development
IBM Skip to main content
  Home     Products & services     Support & downloads     My account  

  Select a country  
Journals Home  
  Systems Journal  
Journal of Research
and Development
    Current Issue  
    Recent Issues  
    Papers in Progress  
    Search/Index  
    Orders  
    Description  
    Patents  
    Recent publications  
    Author's Guide  
  Staff  
  Contact Us  
  Related links:  
     IBM Research  

IBM Journal of Research and Development  
Volume 19, Number 1, Page 26 (1975)
Nontopical Issue
  Full article: arrowPDF   arrowCopyright info





   

Scheme for Invalidating References to Freed Storage

by D. B. Lomet
A storage management scheme is described that supports the invalidation of addresses to freed storage and thus, in that sense, provides a secure system. Unlike previous virtual memory techniques, the allocated areas of our scheme can vary from the very large, requiring multiple pages of storage, to the very small, in which several can be contained on a single page. Special treatment is accorded procedure activation storage so as to provide increased effectiveness for this important case. The interaction of this deletion scheme with garbage collection techniques is also examined. Finally, the relative advantages of retention and deletion strategies of storage management are considered.
Related Subjects: Programming, programs, and programming languages; Storage hierarchies