* Andy Lutomirski <l...@amacapital.net> wrote:
> >> I added that in and applied this patch.
> >
> > So this is not just slightly buggy, it's fundamentally
> > wrong as well as it removes the possibility of an RSP
> > value optimization from the 64-bit path, see my
> > previous mail.
>
> This is just trying to check that the function is
> executing on the per-thread stack. It was correct (and
> fairly heavily tested by Tony) wither KERNEL_STACK_OFFSET
> being nonzero, but we're checking the wrong page if
> KERNEL_STACK_OFFSET becomes zero.
>
> I don't think I understand your objection to this bit.
I object to the KERNEL_STACK_OFFSET removal patch you fixed
here, not to the add-on fix in particular (which is correct
in the context of that patch).
Thanks,
Ingo
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