From 5e9b555fed49c7ae5ebd710e3ac6ab60c176d561 Mon Sep 17 00:00:00 2001
From: Simon <simon@bitcartel.com>
Date: Thu, 3 Nov 2016 21:28:56 -0700
Subject: [PATCH] Fixes #1762 segfault when miner is interrupted.

Running ./zcash-cli setgenerate false would result in a segfault.
The miner thread's boost::signals2::connection was not disconnected
when the miner thread was interrupted and shutdown.  Subsequently, when
a new block arrived, the UpdateTip callback would still be invoked on
a now invalid object, resulting in a segfault.
---
 src/miner.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/miner.cpp b/src/miner.cpp
index ddab39f74..85d4a3d01 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -647,11 +647,13 @@ void static BitcoinMiner(CWallet *pwallet)
     }
     catch (const boost::thread_interrupted&)
     {
+        c.disconnect();
         LogPrintf("ZcashMiner terminated\n");
         throw;
     }
     catch (const std::runtime_error &e)
     {
+        c.disconnect();
         LogPrintf("ZcashMiner runtime error: %s\n", e.what());
         return;
     }