Re: [PATCH 1/2] ntdll: Restore stack guard and prevent stack from shrinking

[Piotr Caban]

On 04/07/11 11:00, Alexandre Julliard wrote:
> Piotr Caban  writes:
> > It's not needed (I thought it may be not valid for whole stack). I'll
> > send fixed version.
> >
> > There also should be "growing" instead of "shrinking" in commit
> > message. It was meant to point that it's possible to change StackLimit
> > more then once without this patch.
>
> I'm not sure what you mean, making it grow is the reason for that
> function.

Without this patch there's following condition for stack growing:
if ((char *)page + page_size == NtCurrentTeb()->Tib.StackLimit)
    NtCurrentTeb()->Tib.StackLimit = page;
If after growing the stack application protects the memory between 
StackLimit and StackLimit-page_size, StackLimit will be changed again.