Re: 2.2.18Pre Lan Performance Rocks!

Andrea Arcangeli
2000-11-01T15:01:23Z

On Wed, Nov 01, 2000 at 11:13:16AM +0000, David Woodhouse wrote:
> Isn't that _exactly_ what happens with Linux kernel threads, with lazy mm
> switching?

Sure. Infact all the kernel (modules included) runs in ring 0 sharing the same
part of VM and - as everybody knows - a bug in a driver (or in khttpd or tux)
can crash the kernel.

But you can't destabilize the whole system when a bug in apache triggers (that
would happen with a ring 0 linux instead, and yes, with "linux" Jeff meant the
whole system, not just the kernel).

Andrea