From edd0980dc3251154fdef23a97a34a74a43faff75 Mon Sep 17 00:00:00 2001
From: Zongmin <zongmin.gzm@alibaba-inc.com>
Date: Tue, 8 Sep 2020 21:19:45 +0800
Subject: [PATCH] Fix exec mode occlum server crashes issue (if the client
 unexpected exit)

---
 src/exec/src/server.rs | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/exec/src/server.rs b/src/exec/src/server.rs
index d8ac8767..45518e93 100644
--- a/src/exec/src/server.rs
+++ b/src/exec/src/server.rs
@@ -214,9 +214,7 @@ impl OcclumExec for OcclumExecImpl {
                     "process:{} finished, send signal to {}",
                     process_id, client_process_id
                 );
-
-                //TODO: fix me if the client has been killed
-                signal::kill(Pid::from_raw(client_process_id as i32), Signal::SIGUSR1).unwrap();
+                signal::kill(Pid::from_raw(client_process_id as i32), Signal::SIGUSR1).unwrap_or_default();
             });
 
             resp.finish(ExecCommResponse {