Re: user-mode port 0.44-2.4.7

[Andrea Arcangeli]

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
'case'.

> 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.

Andrea