From 1d4c9574f9b69daa80c9cfb20efb2c29c5cb5e85 Mon Sep 17 00:00:00 2001
From: Matthew Dillon <dillon@dragonflybsd.org>
Date: Sun, 28 Sep 2003 03:37:32 +0000
Subject: [PATCH] Try to generate more debugging information when the critical
 nesting count gets too deep (which indicates a crit_enter/exit or
 lwkt_gettoken/reltoken mismatch somewhere).

---
 sys/kern/lwkt_thread.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sys/kern/lwkt_thread.c b/sys/kern/lwkt_thread.c
index 9780d3cfdf..38c9dd1992 100644
--- a/sys/kern/lwkt_thread.c
+++ b/sys/kern/lwkt_thread.c
@@ -28,7 +28,7 @@
  *	to use a critical section to avoid problems.  Foreign thread 
  *	scheduling is queued via (async) IPIs.
  *
- * $DragonFly: src/sys/kern/lwkt_thread.c,v 1.31 2003/09/25 23:49:09 dillon Exp $
+ * $DragonFly: src/sys/kern/lwkt_thread.c,v 1.32 2003/09/28 03:37:32 dillon Exp $
  */
 
 #include <sys/param.h>
@@ -999,6 +999,10 @@ lwkt_gettoken(lwkt_token_t tok)
 
     crit_enter();
 #ifdef INVARIANTS
+    if (curthread->td_pri > 1800) {
+	printf("lwkt_gettoken: %p called from %p: crit sect nesting warning\n",
+	    tok, ((int **)&tok)[-1]);
+    }
     if (curthread->td_pri > 2000) {
 	curthread->td_pri = 1000;
 	panic("too HIGH!");
-- 
2.41.0