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sda_-_what_are_the_invalid_page_table_entry_formats_in_openvms

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Introduction

What are the unique invalid page table formats within OpenVMS?

Details

There are 5 unique invalid page table formats. The invalid page table entry can be for:

  • A demand zero page - This type of entry would be built for uninitialized data, which is at least one page in size.
  • A global page - This type of entry would be built when running an image that is INSTALLed with the /SHARE qualifier or when the program has been linked against a shareable image which is also INSTALLed /SHARE.
  • A transition page - This type of entry would be a page that is on the free or modified page list.
  • A page in the page file - This type of entry would be a page found in PAGEFILE.SYS.
  • A page that can be located through the section table entry - Type type of entry would be used to allow the reading of a set of code or data pages from the image file. It can be either global or process private.
sda_-_what_are_the_invalid_page_table_entry_formats_in_openvms.1550000061.txt.gz · Last modified: 2019/02/12 19:34 by mmacgregor

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