On Wed, 27 Apr 2022 14:32:20 +0900 Naoya Horiguchi <naoya.horiguchi@xxxxxxxxx> wrote: > From: Naoya Horiguchi <naoya.horiguchi@xxxxxxx> > > The following VM_BUG_ON_FOLIO() is triggered when memory error event > happens on the (thp/folio) pages which are about to be freed: > > ... > > Fixes: 74e8ee4708a8 ("mm: Turn head_compound_mapcount() into folio_entire_mapcount()") I added cc:stable to this, OK?