On Mon, Jan 25, 2021 at 8:06 AM David Rientjes [off-list ref] wrote:

On Sun, 17 Jan 2021, Muchun Song wrote:

quoted

Because we reuse the first tail vmemmap page frame and remap it
with read-only, we cannot set the PageHWPosion on a tail page.
So we can use the head[4].private to record the real error page
index and set the raw error page PageHWPoison later.

Signed-off-by: Muchun Song <redacted>
Reviewed-by: Oscar Salvador <osalvador@suse.de>

Acked-by: David Rientjes <rientjes@google.com>

Thanks.