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31 lines
857 B
31 lines
857 B
7 years ago
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From: Elena Ufimtseva <ufimtseva@gmail.com>
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To: linux-numa@vger.kernel.org
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Cc: cpw@sgi.com, Elena Ufimtseva <ufimtseva@gmail.com>
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Subject: [PATCH] numactl: checks for numa when showing hardware
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Date: Sat, 23 Nov 2013 03:10:41 -0500
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Checks if NUMA is available before printing hardware,
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otherwise segfault occurs.
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Signed-off-by: Elena Ufimtseva <ufimtseva@gmail.com>
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---
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numactl.c | 5 +++++
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1 files changed, 5 insertions(+), 0 deletions(-)
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diff --git a/numactl.c b/numactl.c
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index 97955a4..f30b53c 100755
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--- a/numactl.c
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+++ b/numactl.c
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@@ -242,6 +242,11 @@ void hardware(void)
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int prevnode=-1;
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int skip=0;
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int maxnode = numa_max_node();
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+
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+ if (numa_available() < 0) {
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+ printf("No NUMA available on this system\n");
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+ exit(1);
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+ }
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for (i=0; i<=maxnode; i++)
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if (numa_bitmask_isbitset(numa_nodes_ptr, i))
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