From 5afede5ce640deb26e258c2d2c9dbbecef0fc0a5 Mon Sep 17 00:00:00 2001
From: Keir Fraser <keir@xensource.com>
Date: Thu, 25 Oct 2007 17:27:57 +0100
Subject: [PATCH] xentrace: Fix race in updating consumer ring index. From:
 George Dunlap <gdunlap@xensource.com> Signed-off-by: Keir Fraser
 <keir@xensource.com>

---
 tools/xentrace/xentrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/xentrace/xentrace.c b/tools/xentrace/xentrace.c
index 17df72fe9d..5e7a0c5207 100644
--- a/tools/xentrace/xentrace.c
+++ b/tools/xentrace/xentrace.c
@@ -394,7 +394,7 @@ int monitor_tbufs(int outfd)
             }
 
             mb(); /* read buffer, then update cons. */
-            meta[i]->cons = meta[i]->prod;
+            meta[i]->cons = prod;
         }
 
         nanosleep(&opts.poll_sleep, NULL);
-- 
2.30.2