Re: disable tsc with seccomp

From: Andrea Arcangeli
Date: Mon Nov 21 2005 - 12:38:36 EST


On Mon, Nov 21, 2005 at 06:24:44PM +0100, Andi Kleen wrote:
> I don't believe theoretical, unlikely to be usable in any way

Demonstrate it if you can.

The fact is that the closest thing to a demonstration that we have,
demonstrated the opposite of what you claim, so you'll have an hard
time to convince me about your point given you've no way to demonstrate
it.

I can guarantee that my machine is safe by running top, the only thing
that escapes the easy "top" check is CPUShare and I want to fix it,
since I can.

> And in addition your change doesn't even close that channel
> in theory.

The the PCE is red herring, since it's a zero-cost addition.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/