From 11cd796652523f4c6a4d23fd121ee0dac34a9f25 Mon Sep 17 00:00:00 2001
From: Ming-Hung Tsai <mingnus@gmail.com>
Date: Sat, 27 Feb 2016 01:27:27 +0800
Subject: [PATCH] Show the block address if block_cache::get() failed

---
 block-cache/block_cache.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/block-cache/block_cache.cc b/block-cache/block_cache.cc
index 6ecce1f..e7e6f14 100644
--- a/block-cache/block_cache.cc
+++ b/block-cache/block_cache.cc
@@ -620,7 +620,9 @@ block_cache::get(block_address index, unsigned flags, validator::ptr v)
 		return *b;
 	}
 
-	throw std::runtime_error("couldn't get block");
+	std::ostringstream out;
+	out << "couldn't get block " << index;
+	throw std::runtime_error(out.str());
 }
 
 void