--- /usr/src/sys/kern/vfs_mount.c	Thu May 19 00:05:12 2005
+++ src/sys/kern/vfs_mount.c	Wed Aug 31 02:09:18 2005
@@ -1309,7 +1309,6 @@
 		 */
 		mp = TAILQ_FIRST(&mountlist);
 		KASSERT(mp != NULL, ("%s: mountlist is empty", __func__));
-		vfs_unbusy(mp, curthread);
 
 		/*
 		 * Iterate over all currently mounted file systems and use