Re: mm: NULL ptr deref handling mmaping of special mappings

Cyrill Gorcunov
2014-05-19T08:40:36Z

On Mon, May 19, 2014 at 12:27:29PM +0400, Pavel Emelyanov wrote:
> >
> > What happens if you try to checkpoint a program that's in the vdso or,
> > worse, in a signal frame with the vdso on the stack?
>
> Nothing good, unfortunately :( And this is one of the things we're investigating.
> Cyrill can shed more light on it, as he's the one in charge.

vdso on stack should not be a big deal, because we keep original vdso proxy.