From: Cody P Schafer <jmesmon@xxxxxxxxx> Freeing pages to uninitialized zones is not handled by __free_one_page(), and should never happen when the code is correct. Ran into this while writing some code that dynamically onlines extra zones. Signed-off-by: Cody P Schafer <cody@xxxxxxxxxxxxxxxxxx> --- mm/page_alloc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index df2022f..da5a5ec 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -532,6 +532,8 @@ static inline void __free_one_page(struct page *page, unsigned long uninitialized_var(buddy_idx); struct page *buddy; + VM_BUG_ON(!zone_is_initialized(zone)); + if (unlikely(PageCompound(page))) if (unlikely(destroy_compound_page(page, order))) return; -- 1.8.0.3 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>