On Thu, May 27, 2010 at 11:43:47AM -0700, Roland McGrath wrote:
> > The "x86: brk away from exec rand area" patch represents a fix to a real
> > problem, though, so at the very least, please review that one. It's a
> > corner case only for PIE, but it does happen. There might be a more
> > elegant solution, but my patch seems to do the job.
>
> Ok. I think this should be reviewed in the normal upstream way, with x86
> maintainers CC'd, not just by us.
agreed.
> I actually don't care about the details of the knobs at all. I just think
> that one knob called "exec-shield" is indefensibly random and unhelpful.
> You need to work this out with Ingo and the other x86 maintainers. Other
> Fedora kernel folks might have some input based on concrete concerns from
> the past. Personally, I've never had a use for any of these knobs.
The only time I recall them ever being useful was when execshield was in
development, and we'd get users to disable certain features to try and determine
which was failing. These days, I bet no-one ever touches the knobs.
Dave
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