Re: [PATCH v12 10/13] arch/x86: enable task isolation functionality

From: Peter Zijlstra
Date: Wed May 18 2016 - 13:11:19 EST


On Wed, May 18, 2016 at 12:35:40PM -0400, Chris Metcalf wrote:
> On 5/18/2016 12:23 PM, Peter Zijlstra wrote:

> >
> >That seems to miss a whole bunch of exceptions... what up?
>
> We only need to do an explicit call in the case where the exception does NOT
> result in a signal, since a signal is something that will be really obvious to
> the application in any case. So it's just stuff like handled page faults,
> handled bounds checks for x86, handled unaligned load/store for tilegx, etc.

Right; as per your earlier signal explanation. This seems somewhat
fragile to maintain though and really could use more clarification.