diff --git a/sys/vm/swap_pager.c b/sys/vm/swap_pager.c
--- a/sys/vm/swap_pager.c
+++ b/sys/vm/swap_pager.c
@@ -633,12 +633,8 @@
 	    vm_cnt.v_page_count / 2;
 	swpctrie_zone = uma_zcreate("swpctrie", pctrie_node_size(), NULL, NULL,
 	    pctrie_zone_init, NULL, UMA_ALIGN_PTR, 0);
-	if (swpctrie_zone == NULL)
-		panic("failed to create swap pctrie zone.");
 	swblk_zone = uma_zcreate("swblk", sizeof(struct swblk), NULL, NULL,
 	    NULL, NULL, _Alignof(struct swblk) - 1, 0);
-	if (swblk_zone == NULL)
-		panic("failed to create swap blk zone.");
 	n2 = n;
 	do {
 		if (uma_zone_reserve_kva(swblk_zone, n))