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-rw-r--r--tests/helpers/test_uuidd.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/tests/helpers/test_uuidd.c b/tests/helpers/test_uuidd.c
index f098c4ac4..1262e359d 100644
--- a/tests/helpers/test_uuidd.c
+++ b/tests/helpers/test_uuidd.c
@@ -5,6 +5,23 @@
* SAP Technology Group
*
* Copyright (C) 2015 Karel Zak <kzak@redhat.com>
+ *
+ *
+ * The test heavily uses shared memory, to enlarge maximal size of shared
+ * segment use:
+ *
+ * echo "4294967295" > /proc/sys/kernel/shmm
+ *
+ * The test is compiled against in-tree libuuid, if you want to test uuidd
+ * installed to the system then make sure that libuuid uses the same socket
+ * like the running uuidd. You can start the uuidd manually, for example:
+ *
+ * uuidd --debug --no-fork --no-pid --socket /run/uuidd/request
+ *
+ * if the $localstatedir (as defined by build-system) is /run. If you want
+ * to overwrite the built-in default then use:
+ *
+ * make uuidd uuidgen localstatedir=/var
*/
#include <error.h>
#include <libgen.h>