Add error checking if there is no hugetlbfs mount or huge pages available

This patch makes the test harness print a nicer message if there are no
available pagesizes.

Signed-off-by: Eric B Munson <ebmunson@us.ibm.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/tests/run_tests.py b/tests/run_tests.py
index 5822473..404e5fe 100755
--- a/tests/run_tests.py
+++ b/tests/run_tests.py
@@ -208,8 +208,9 @@ def get_pagesizes():
     active mount points and at least one huge page allocated to the pool.
     """
     sizes = set()
+    out = ""
     (rc, out) = bash(cmd_env('') + "hugeadm --page-sizes")
-    if rc != 0: return sizes
+    if rc != 0 or out == "": return sizes
 
     for size in out.split("\n"): sizes.add(int(size))
     return sizes
@@ -599,6 +600,11 @@ def main():
     if len(wordsizes) == 0: wordsizes = set([32, 64])
     if len(pagesizes) == 0: pagesizes = get_pagesizes()
 
+    if len(pagesizes) == 0:
+        print "Unable to find available page sizes, are you sure hugetlbfs"
+        print "is mounted and there are available huge pages?"
+        return 1
+
     setup_env(env_override, env_defaults)
     init_results()
     check_hugetlbfs_path()