From: Elena Ufimtseva <ufimtseva@gmail.com>
To: linux-numa@vger.kernel.org
Cc: cpw@sgi.com, Elena Ufimtseva <ufimtseva@gmail.com>
Subject: [PATCH] numactl: checks for numa when showing hardware
Date: Sat, 23 Nov 2013 03:10:41 -0500

Checks if NUMA is available before printing hardware,
otherwise segfault occurs.

Signed-off-by: Elena Ufimtseva <ufimtseva@gmail.com>
---
 numactl.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/numactl.c b/numactl.c
index 97955a4..f30b53c 100755
--- a/numactl.c
+++ b/numactl.c
@@ -242,6 +242,11 @@ void hardware(void)
 	int prevnode=-1;
 	int skip=0;
 	int maxnode = numa_max_node();
+	
+	if (numa_available() < 0) {
+                printf("No NUMA available on this system\n");
+                exit(1);
+        }
 
 	for (i=0; i<=maxnode; i++)
 		if (numa_bitmask_isbitset(numa_nodes_ptr, i))