Re: [PATCH v5 04/27] x86/fpu/xstate: Add XSAVES system states for shadow stack

[Cyrill Gorcunov]

On Thu, Nov 08, 2018 at 02:01:42PM -0800, Andy Lutomirski wrote:
> > >
> > > They both seem like bugs, perhaps.  As I understand it, __packed
> > > removes padding, but it also forces the compiler to expect the fields
> > > to be unaligned even if they are actually aligned.
> >
> > How is that? Andy, mind to point where you get that this
> > attribute forces compiler to make such assumption?
> 
> It's from memory.  But gcc seems to agree with me I compiled this:
> 

Indeed, thanks!