From 45c9fe9da751a37578e52b51cf2e863c1d025643 Mon Sep 17 00:00:00 2001
From: alfred <alfred@FreeBSD.org>
Date: Mon, 12 Jul 2004 04:13:38 +0000
Subject: [PATCH] Dump the actual bad values when this assertion is tripped.

---
 sys/kern/vfs_subr.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c
index 9745d4a2cbf0..c0dff887c49e 100644
--- a/sys/kern/vfs_subr.c
+++ b/sys/kern/vfs_subr.c
@@ -2370,7 +2370,9 @@ loop:
 		 */
 		VI_LOCK(rootvp);
 		KASSERT(busy > 0, ("vflush: not busy"));
-		KASSERT(rootvp->v_usecount >= rootrefs, ("vflush: rootrefs"));
+		KASSERT(rootvp->v_usecount >= rootrefs,
+		    ("vflush: usecount %d < rootrefs %d",
+		     rootvp->v_usecount, rootrefs));
 		if (busy == 1 && rootvp->v_usecount == rootrefs) {
 			vgonel(rootvp, td);
 			busy = 0;