Re: [patch 1/2] x86_64 page fault NMI-safe

Frederic Weisbecker
2010-07-14T22:14:25Z

On Wed, Jul 14, 2010 at 12:54:19PM -0700, Linus Torvalds wrote:
> On Wed, Jul 14, 2010 at 12:36 PM, Frederic Weisbecker
> <fweisbec@gmail.com> wrote:
> >
> > There is also the fact we need to handle the lost NMI, by defering its
> > treatment or so. That adds even more complexity.
>
> I don't think your read my proposal very deeply. It already handles
> them by taking a fault on the iret of the first one (that's why we
> point to the stack frame - so that we can corrupt it and force a
> fault).

Ah right, I missed this part.