Subject: expanding size of kernel virtual space (on i386)
To: None <firstname.lastname@example.org>
From: Michael Richardson <email@example.com>
Date: 04/21/2000 15:07:29
What determines the size of kernel virtual space?
Is it the start location of the kernel to end of memory, or
is it VM_MIN_KERNEL_ADDRESS in vmparam.h?
It appears that I need to adjust VM_MAXUSER_ADDRESS and VM_MAX_ADDRESS
as well.... perhaps this parameter in comments, KPTDI is the key?
Secondly, if I just want to mmap a 2^28 area into a user process, and
I don't care if the kernel can access it, then I suspect that I don't really
need to expand the size of kernel VM.
:!mcr!: | Cow#1: Are you worried about getting Mad Cow Disease?
Michael Richardson | Cow#2: No. I'm a duck.
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