If the 'kmem' module is missing skip the test to support running the unit tests on older -stable kernels pre-v5.1. Signed-off-by: Dan Williams <dan.j.williams(a)intel.com&gt; --- test/daxctl-devices.sh | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/test/daxctl-devices.sh b/test/daxctl-devices.sh index 04f53f7b13ab..4102fb6990ae 100755 --- a/test/daxctl-devices.sh +++ b/test/daxctl-devices.sh @@ -18,6 +18,13 @@ find_testdev() { local rc=77 + # The kmem driver is needed to change the device mode, only + # kernels >= v5.1 might have it available. Skip if not. + if ! modinfo kmem; then + "Unable to find kmem module" + exit $rc + fi + # find a victim device testbus="$ACPI_BUS" testdev=$("$NDCTL" list -b "$testbus" -Ni | jq -er '.[0].dev | .//""')