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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))