diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 15fc64d4e1555e995da33e71766f64f7b30f7a09..d8cdb98e90007b81685fae5650ded37c7c4443b4 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1458,10 +1458,8 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)
 						    page_is_file_cache(page));
 
 		} else {
-#ifdef CONFIG_DEBUG_VM
-			pr_alert("failed to isolate pfn %lx\n", pfn);
+			pr_warn("failed to isolate pfn %lx\n", pfn);
 			dump_page(page, "isolation failed");
-#endif
 			put_page(page);
 			/* Because we don't have big zone->lock. we should
 			   check this again here. */
@@ -1481,8 +1479,14 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)
 		/* Allocate a new page from the nearest neighbor node */
 		ret = migrate_pages(&source, new_node_page, NULL, 0,
 					MIGRATE_SYNC, MR_MEMORY_HOTPLUG);
-		if (ret)
+		if (ret) {
+			list_for_each_entry(page, &source, lru) {
+				pr_warn("migrating pfn %lx failed ret:%d ",
+				       page_to_pfn(page), ret);
+				dump_page(page, "migration failure");
+			}
 			putback_movable_pages(&source);
+		}
 	}
 out:
 	return ret;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 98f6b601c28d234e444a373202d7051e4c12e364..6920d5a3db5222d59571e35188374496b73ce1f2 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -7779,6 +7779,7 @@ bool has_unmovable_pages(struct zone *zone, struct page *page, int count,
 	return false;
 unmovable:
 	WARN_ON_ONCE(zone_idx(zone) == ZONE_MOVABLE);
+	dump_page(pfn_to_page(pfn+iter), "unmovable page");
 	return true;
 }