Hi
On Thu, Mar 27, 2008 at 9:14 PM, Peter Teoh <[EMAIL PROTECTED]> wrote:
> This is interesting - contrary to what we usually talked about -
> UserModeLinux - this is the opposite:
>
> <URL: http://web.yl.is.s.u-tokyo.ac.jp/~tosh/kml/ >
Yup, I read that since around 2003 IIRC. basically, you made user
space program runs in kernel mode. I remember one important thing: you
need to be careful with triple fault...when IIRC we just deal with
maximum double fault.
And I think, this has security implication.... even if you don't have
root privilege, if somehow you can "break" into binary inside trusted
path, it's like gaining control via /dev/{k,}mem
Plus side: reduced kernel-user mode context switch... good for I/O
intensive apps such as database IMHO.
regards,
Mulyadi.
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