From cf16a6e0d168a514a419bc9250e43c57842ba567 Mon Sep 17 00:00:00 2001
From: Kaz Wesley <keziahw@gmail.com>
Date: Mon, 25 Apr 2016 12:31:32 -0700
Subject: [PATCH] lock cs_main for chainActive

---
 src/main.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main.cpp b/src/main.cpp
index 74615fed7..989d52a02 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3198,7 +3198,7 @@ bool ActivateBestChain(CValidationState &state, const CChainParams& chainparams,
                 }
             }
         }
-    } while(pindexMostWork != chainActive.Tip());
+    } while (pindexNewTip != pindexMostWork);
     CheckBlockIndex(chainparams.GetConsensus());
 
     // Write changes periodically to disk, after relay.