[PATCH] Allow exec on 32-bit from readable, non-exec pages, with a warning.

[Segher Boessenkool]

>>>> Yeah.  Giving the warning is a good thing though.
>>>
>>> No, it isn't; it's just noise, if we're not ever going to do  
>>> anything
>>> to prevent the behaviour - and we can't.
>>
>> The same userland code will not run correctly on PPC64 or BookE
>> systems.  Is that not a reason to warn?
>
> Way back when, I distinctly recall aborting my plans to implement
> per-page exec on 40x, precisely because of executables like this.

I noticed some comments to that effect in the BookE code,
yes.  It seems userland has been fixed enough that you
could think about enabling it again FWIW.


Segher