Subject: Re: GCC3.3.1 switch coming soon.
To: Andrew Brown <atatat@atatdot.net>
From: Matt Thomas <matt@3am-software.com>
List: tech-kern
Date: 09/23/2003 20:36:25
At 08:38 PM 9/23/2003, Andrew Brown wrote:
>On Tue, Sep 23, 2003 at 08:32:02PM -0700, Matt Thomas wrote:
> >At 08:20 PM 9/23/2003, Andrew Brown wrote:
> >>On Tue, Sep 23, 2003 at 07:04:21PM -0700, Chuck Silvers wrote:
> >>something getting merged with the stack and i didn't like it.  i think
> >>that's the problem, though i'm not sure now.  i am confusing even
> >>myself.  sigh.
> >
> >Maybe the solution is to put a no-access page at the bottom of the stack
> >to prevent merges.
>
>that seems a bit of a cop-out, and would further complicate the
>placement of the dynamic linker on exec.  :-/

I disagree.  It's common practice to but guard pages at the bottom of the
stack.  I see no reason why we shouldn't do so.


-- 
Matt Thomas                     email: matt@3am-software.com
3am Software Foundry              www: http://3am-software.com/bio/matt/
Cupertino, CA              disclaimer: I avow all knowledge of this message.