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SubjectRe: kernel page table mapping for >1GB <3 GB for x86 arch without PAE
On Fri, 28 Aug 2009 14:07:01 -0700 (PDT)
joe Shmoe <jsmoe3@yahoo.com> wrote:

> doesn't CR3 gets reloaded for process switch? If so , how does it matter if you setup page table mapping for all the available RAM instead of limiting to just 1GB

Because

- You don't switch process every syscall
- You don't switch process every interrupt

The latter is the real killer.


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