From 60218147312c0f5550bfca018a579639cae41b51 Mon Sep 17 00:00:00 2001
From: gotang <gotang@foxmail.com>
Date: Sat, 20 Aug 2016 14:10:49 +0800
Subject: [PATCH] fix fatal error: concurrent map read and map write

---
 host/generic/interrupt.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/host/generic/interrupt.go b/host/generic/interrupt.go
index 4052283..7f9b766 100644
--- a/host/generic/interrupt.go
+++ b/host/generic/interrupt.go
@@ -61,11 +61,13 @@ func initEpollListener() *epollListener {
 			if err != nil {
 				panic(fmt.Sprintf("EpollWait error: %v", err))
 			}
+			listener.mu.Lock()
 			for i := 0; i < n; i++ {
 				if irq, ok := listener.interruptablePins[int(epollEvents[i].Fd)]; ok {
 					irq.Signal()
 				}
 			}
+			listener.mu.Unlock()
 		}
 	}()
 	return listener