pkeys on POWER: Access rights not reset on execve

[Florian Weimer]

On 06/08/2018 04:34 AM, Ram Pai wrote:
>>
>> So the remaining question at this point is whether the Intel
>> behavior (default-deny instead of default-allow) is preferable.
> 
> Florian, remind me what behavior needs to fixed?

See the other thread.  The Intel register equivalent to the AMR by 
default disallows access to yet-unallocated keys, so that threads which 
are created before key allocation do not magically gain access to a key 
allocated by another thread.

Thanks,
Florian