Merge ~rodsmith/plainbox-provider-checkbox:fix-no-numactl into plainbox-provider-checkbox:master

[Rod Smith]

Since numactl is not available on s390, this patch modifies memory_stress_ng to work if that binary is missing by configuring it to assume a single NUMA node.

[Jeff Lane  (bladernr)]

Great! thanks for fixing that.

review: Approve

diff --git a/bin/memory_stress_ng b/bin/memory_stress_ng
index e619772..35c7725 100755
--- a/bin/memory_stress_ng
+++ b/bin/memory_stress_ng
@@ -114,7 +114,12 @@ echo "Variable run time is $variable_time seconds per stressor"
 
 had_error=0
 
-numa_nodes=$(numactl --hardware | grep available | head -n 1 | cut -f 2 -d " ")
+command -v numactl >/dev/null 2>&1
+if [ $? == 0 ] ; then
+    numa_nodes=$(numactl --hardware | grep available | head -n 1 | cut -f 2 -d " ")
+else
+    numa_nodes=1
+fi
 
 # NOTE: Specify stressors in two arrays rather than rely on stress-ng's
 # --class memory,vm option for two reasons: