[PATCH v5sub1 7/8] arm64: move kernel image to base of vmalloc area

On Wed, Feb 17, 2016 at 07:31:43PM +0300, Andrey Ryabinin wrote:

On 02/17/2016 05:39 PM, Mark Rutland wrote:

quoted

Andrey, on a tangential note, what do we do around hotplug? I assume
that we must unpooison the shadow region for the stack of a dead CPU,
but I wasn't able to figure out where we do that. Hopefuly we're not
just getting lucky?

We do nothing about it. AFAIU we need to clear swapper's stack,
somewhere in secondary_start_kernel() perhaps.

Oh, joy...

Surely other architectures (e.g. x86) will need to do something similar?

Do they do anything currently? I can't see that they do...

Mark.