[PATCH] posix_spawn: use a larger min stack for -fstack-check [BZ #21253]

[Florian Weimer]

On 03/20/2017 02:44 PM, Adhemerval Zanella wrote:

> Should also -fstack-check check for probe value underflow/overflow? The cases should be
> rare (if valid), but at least gcc has one bug report about it [1].
>
> [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66479

I think what we want is a well-controlled page fault.  How we get there 
does not really matter.

Florian