Re: user-mode port 0.44-2.4.7

From: Andrea Arcangeli (
Date: Mon Jul 23 2001 - 13:27:34 EST

On Mon, Jul 23, 2001 at 11:11:25AM -0700, Linus Torvalds wrote:
> Now, the change of algorithm might be something like
> /*
> * We need to get _one_ value here, because our
> * state machine ....
> */

gcc can assume 'state' stays constant in memory not just during the

> The C standard doesn't say crap about volatile. It leaves it up to the
> compiler to do something about it.

The C folks definitely say it is a kernel bug if you don't apply my
patch and I agree with them. Ask Jan.

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