diff --git a/WINGs/wview_wl.c b/WINGs/wview_wl.c
index dbf04a1..ce087e3 100644
--- a/WINGs/wview_wl.c
+++ b/WINGs/wview_wl.c
@@ -448,6 +448,13 @@ static void wl_redisplay(void *vctx, W_View *view)
 		if (child->flags.mapped && child->flags.realized && !child->flags.alreadyDead) {
 			wl_redisplay(vctx, child);
 		}
+		/* Debug: log scroller-sized children in scroll-view-sized parents */
+		if (view->size.width > 400 && view->size.height > 80 && view->size.height < 100
+		    && child->size.height <= 20 && child->size.height > 0)
+			wwarning("scroller? child %p size=%dx%d pos=%d,%d mapped=%d realized=%d",
+			         (void*)child, child->size.width, child->size.height,
+			         child->pos.x, child->pos.y,
+			         child->flags.mapped, child->flags.realized);
 		child = next;
 	}