Messages in this thread | | | Date | Tue, 12 Sep 2017 13:54:48 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] mm, hugetlb, soft_offline: save compound page order before page migration |
| |
On Tue, 12 Sep 2017 22:43:06 +0200 Alexandru Moise <00moses.alexander00@gmail.com> wrote:
> This fixes a bug in madvise() where if you'd try to soft offline a > hugepage via madvise(), while walking the address range you'd end up, > using the wrong page offset due to attempting to get the compound > order of a former but presently not compound page, due to dissolving > the huge page (since c3114a8).
What are the user visible effects of the bug? The wrong page is offlined? No offlining occurs?
| |