Julian Elischer wrote:
On Tue, 3 Feb 2004, Sridhar Chellappa wrote:
Sridhar Chellappa wrote:
As part of the Bootup sequence, I see create_pagetables allocate only
30 Pages for Page Table entries in non-PAE mode and 120 pages in PAE
mode. Does this mean that all the kernel mode entities get only 4 * 30
* 1024 * 1024 = 120 MB worth of Address Space ? Can I tune the kernel
virtual address space by just changing the "NKPT" define in pmap.h ?
Also, I heard that the BSD kernel(atleast from 5.1 onward) itself is
pre-emptible and none of the kernel threads have a cpu affinity. How
do I change the behaviour to make the kernel non-preemptible and tie
kernel-threads to a particular CPU ?
Sridhar.
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Under Linux, all kernel threads share the same "Kernel" Virtual Address
Space. Is it the same under freeBSD ? If it is not, then what sort of
Stuff gets put into the "Kernel" Virtual Address Space?
The simple answer is: "yes they do".
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Is it possible for freeBSD kernel threads to have their own private
virtual address space ??
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