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sda_-_what_are_the_invalid_page_table_entry_formats_in_openvms

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sda_-_what_are_the_invalid_page_table_entry_formats_in_openvms [2019/02/12 19:19] – created mmacgregorsda_-_what_are_the_invalid_page_table_entry_formats_in_openvms [2019/02/12 19:55] (current) mmacgregor
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-NOTE:  This is a work in progress.  It will be finalized soon. 
  
 ==== Introduction ==== ==== Introduction ====
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 There are 5 unique invalid page table formats. The invalid page table entry can be for: There are 5 unique invalid page table formats. The invalid page table entry can be for:
  
-  * A demand zero page +  * **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 +  * **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 (page is on the free or modified page list) +  * **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 +  * **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 (section file page - either global or process private)+  * **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.txt · Last modified: 2019/02/12 19:55 by mmacgregor

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