From 6ac83389927b7e869b880dfafdf4f7b1b814f1b1 Mon Sep 17 00:00:00 2001
From: Gav Wood <i@gavwood.com>
Date: Mon, 15 Jun 2015 21:17:26 +0800
Subject: [PATCH] Extra debug notice.

---
 libethcore/Ethash.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libethcore/Ethash.cpp b/libethcore/Ethash.cpp
index 2c743f33b..f27e8e4db 100644
--- a/libethcore/Ethash.cpp
+++ b/libethcore/Ethash.cpp
@@ -108,7 +108,10 @@ bool Ethash::verify(BlockInfo const& _header)
 	bool pre = preVerify(_header);
 #if !ETH_DEBUG
 	if (!pre)
+	{
+		cdebug << "Fail on preVerify";
 		return false;
+	}
 #endif
 
 	auto result = EthashAux::eval(_header);