On Wed 14-11-18 22:17:04, David Hildenbrand wrote: [...] > diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c > index b0308a2c6000..01db1d13481a 100644 > --- a/kernel/power/snapshot.c > +++ b/kernel/power/snapshot.c > @@ -1222,7 +1222,7 @@ static struct page *saveable_highmem_page(struct zone *zone, unsigned long pfn) > BUG_ON(!PageHighMem(page)); > > if (swsusp_page_is_forbidden(page) || swsusp_page_is_free(page) || > - PageReserved(page)) > + PageReserved(page) || PageOffline(page)) > return NULL; > > if (page_is_guard(page)) > @@ -1286,6 +1286,9 @@ static struct page *saveable_page(struct zone *zone, unsigned long pfn) > if (swsusp_page_is_forbidden(page) || swsusp_page_is_free(page)) > return NULL; > > + if (PageOffline(page)) > + return NULL; > + > if (PageReserved(page) > && (!kernel_page_present(page) || pfn_is_nosave(pfn))) > return NULL; Btw. now that you are touching this file could you also make s@pfn_to_page@pfn_to_online_page@ please? We really do not want to touch offline pfn ranges in general. A separate patch for that of course. Thanks! -- Michal Hocko SUSE Labs