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Exceptions: Difference between revisions
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Merge with Page_Fault
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==== Page Fault ====
A Page Fault occurs when:
* A [[Paging|page directory or table]] entry is not present in physical memory.
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| 1 bit
| Write
| When set, the page fault was caused by a
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| 1 bit
| Reserved write
| When set, one or more page directory entries contain reserved bits which are set to 1. This only applies when the PSE or PAE flags in CR4 are set to 1.
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| 1 bit
| Instruction Fetch
| When set, the page fault was caused by an instruction fetch. This only applies when the No-Execute bit is supported and enabled.
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