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))