On 27/07/15 16:41, Mel Gorman wrote: > On Mon, Jul 27, 2015 at 04:32:45PM +0100, David Vrabel wrote: >> Mel, >> >> As of commit 8a942fdea560d4ac0e9d9fabcd5201ad20e0c382 (mm: meminit: make >> __early_pfn_to_nid SMP-safe and introduce meminit_pfn_in_nid) >> vmemmap_verify() will BUG_ON() during memory hotplug because of its use >> of early_pfn_to_nid(). Previously, it would have reported bogus (or >> failed to report valid) warnings. >> > > Please test "mm, meminit: Allow early_pfn_to_nid to be used during > runtime" That fixed the BUG_ON() thanks. But I still can't only the new sections because their first page is not reserved, but I've not had time to investigate why this is yet. David -- 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>