From bc6ff038e389b399e08e032d27ad1227ecee8b55 Mon Sep 17 00:00:00 2001
From: Dave Collins <davec@conformal.com>
Date: Wed, 5 Feb 2014 12:37:35 -0600
Subject: [PATCH] Fix a race in the amgr found by the race detector.

---
 addrmanager.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/addrmanager.go b/addrmanager.go
index 854dab209..fe54abfe8 100644
--- a/addrmanager.go
+++ b/addrmanager.go
@@ -140,7 +140,11 @@ func (a *AddrManager) updateAddress(netAddr, srcAddr *btcwire.NetAddress) {
 			return
 		}
 	} else {
-		ka = &knownAddress{na: netAddr, srcAddr: srcAddr}
+		// Make a copy of the net address to avoid races since it is
+		// updated elsewhere in the addrmanager code and would otherwise
+		// change the actual netaddress on the peer.
+		netAddrCopy := *netAddr
+		ka = &knownAddress{na: &netAddrCopy, srcAddr: srcAddr}
 		a.addrIndex[addr] = ka
 		a.nNew++
 		// XXX time penalty?