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content/notes/22-virtual-memory.md
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@ -45,7 +45,7 @@ implementing
note: each page can be stored twice: loaded in main memory and in the backing store - these two copies need to remain consistent. i.e.., changes to one must be reflected in the other note: each page can be stored twice: loaded in main memory and in the backing store - these two copies need to remain consistent. i.e.., changes to one must be reflected in the other
page faults page faults
- "trap" occurs when trying to access and invalid page - "trap" occurs when trying to access an invalid page
- what the os does: - what the os does:
- check if caused by invalid memory access or unavailable page frame - check if caused by invalid memory access or unavailable page frame
- if nvalid mem access - if nvalid mem access