diff --git a/sys/kern/vfs_mountroot.c b/sys/kern/vfs_mountroot.c
--- a/sys/kern/vfs_mountroot.c
+++ b/sys/kern/vfs_mountroot.c
@@ -986,6 +986,7 @@
 
 	curfail = 0;
 	lastfail.tv_sec = 0;
+	ppsratecheck(&lastfail, &curfail, 1);
 	while (1) {
 		g_waitidle();
 		mtx_lock(&root_holds_mtx);