From 3648aa5bf6e29bf618195c615ff2ced4bb995327 Mon Sep 17 00:00:00 2001
From: Pingfan Liu <piliu@redhat.com>
Date: Tue, 5 Nov 2019 16:25:33 +0800
Subject: [PATCH] shm: exit when ftruncate() fails

numa_police_memory() accesses the mapping region, which size is shmlen.
If the shared file can not be extended to shmlen, then SIGBUS will be
triggered. Instead exit() is more graceful.

Signed-off-by: Pingfan Liu <piliu@redhat.com>
---
 shm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/shm.c b/shm.c
index fb592ed..79043c9 100644
--- a/shm.c
+++ b/shm.c
@@ -151,6 +151,7 @@ void attach_shared(char *name, char *opt)
 			   would be impossible to apply policy then.
 			   need to fix that in the kernel. */
 			perror("ftruncate");
+			exit(1);
 		}
 	}