On 14.12.16 09:11:47, Ard Biesheuvel wrote: > The NUMA code may get confused by the presence of NOMAP regions within > zones, resulting in spurious BUG() checks where the node id deviates > from the containing zone's node id. > > Since the kernel has no business reasoning about node ids of pages it > does not own in the first place, enable CONFIG_HOLES_IN_ZONE to ensure > that such pages are disregarded. > > Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> I would rather see a solution other than making pfn_valid checks more fine grained, but this patch also fixes the issue. So: Acked-by: Robert Richter <rrichter@xxxxxxxxxx> -- 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>