On Tue, Sep 12, 2017 at 01:54:48PM -0700, Andrew Morton wrote: > On Tue, 12 Sep 2017 22:43:06 +0200 Alexandru Moise > <00moses.alexande...@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?
I end up with all my free pages getting offlined. Except 1. ../Alex