From 21d7bb95ebde6ce2a0b4365d7be852c94efdf6ab Mon Sep 17 00:00:00 2001
From: Ted Yu <yuzhihong@gmail.com>
Date: Fri, 3 Apr 2020 15:27:27 -0700
Subject: [PATCH] Close criuServer so that even if CRIU crashes or unexpectedly
 exits, runc will not hang

Signed-off-by: Ted Yu <yuzhihong@gmail.com>
---
 libcontainer/container_linux.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libcontainer/container_linux.go b/libcontainer/container_linux.go
index b02df818..40797434 100644
--- a/libcontainer/container_linux.go
+++ b/libcontainer/container_linux.go
@@ -1498,6 +1498,8 @@ func (c *linuxContainer) criuSwrk(process *Process, req *criurpc.CriuReq, opts *
 	if err := cmd.Start(); err != nil {
 		return err
 	}
+	// we close criuServer so that even if CRIU crashes or unexpectedly exits, runc will not hang.
+	criuServer.Close()
 	// cmd.Process will be replaced by a restored init.
 	criuProcess := cmd.Process